Nguồn Xanh
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Traceability page for lot NTH-DAN-2604-01

Gà đẻ

Đàn gà đẻ Isa Brown · Chuồng gà đẻ (mẫu)

·
Log in progress 0/1 steps with a photo
0/1steps with photo evidence
67%logged within 24 h
0withholding / cross-check violations

💡 Tap dotted words for a plain-language definition

Why is the lot at this level? Show details ▾
  • ✓Lot start event recorded (27/04/2026)
  • 1No dispatch from farm yet
  • 20/1 steps requiring evidence have a photo (0%, ≥ 90% required)
  • 267% of events logged within 24 hours (≥ 80% required)
  • ✓All 1/1 required steps recorded
  • ✓100% of events have GPS inside the production site (≥ 80% required)
  • 2Plausibility checks not passed: Concurrent lots vs site size
  • ✓No withholding-period breach and no banned inputs used
  • 3No on-site inspection report (passed, with photo) during production
  • 4No laboratory result or valid certificate yet
  • !Figures outside the plausible range (tổng quy mô các lô cùng lúc trên khu): capped at level 1 until a cooperative inspects on site
  • !Too many late or corrected entries (67%): capped at level 1

The level is computed by the system from the recorded data; the farm cannot set it. This platform records evidence — it does not warrant product quality.

Product

Lot code
NTH-DAN-2604-01
Started
27/04/2026
Process template
🐔 Laying / dairy herd (husbandry log) · version 1

Where it was produced

Producer
Hộ Nguyễn Thị Hoa (mẫu)
Documents checked

Legal documents have been checked; no site visit yet.

Verified against: Tax code · Business registration number · Food-safety certificate · GLN (GS1 location code)

Approved by: Quản trị nền tảng · on 24/09/2026 · valid until 2027-07-18. This tick means the business exists and its documents were checked — it is not a guarantee for any individual lot.

Location
Xã Xuân An, Huyện Nghi Xuân, Tỉnh Hà Tĩnh
Field / barn
Chuồng lợn B · 120 m²
Cooperative member
HTX Nông nghiệp Xuân An (mẫu)

Location is shown only down to commune level to protect the farm household’s privacy.

🥚 Egg batch from this flock · 4 batches

This page is the husbandry log for the whole flock. What is sold is grouped into collection batches; each batch has its own code and QR label — tap one to open it.

24/09/2026431 quả22/09/2026848 quả19/09/2026855 quả15/09/2026862 quả

Measured conditions at the production site

This data runs alongside the farm’s own log, and every figure states its source. Weather taken from the site’s coordinates and satellite imagery is independent — the farm neither enters nor edits it. For sensors, the page states who holds the device key (farm or cooperative); readings the farm measured itself are marked ✍️ Self-reported.

🌧 1381 mm · 94 rainy days 🌡 21–40 °C 💧 mean humidity 75% ☀️ 1322 hours of sunshine 142 days
🌦 Dịch vụ thời tiết (Open-Meteo)Rainfall (mm/day)Mean temperature, low–high band (°C)Days the farm logged work
0100mm20°25°30°35°40°45°🐔🧹📉🧹📉🌾90 mm25°27/0401/0606/0710/0814/090100mm20°30°40°🐔🧹📉🧹📉90 mm25°27/0413/0630/0715/09
🛰 Vệ tinh Sentinel-2Site greenness (NDVI) — 10 m per pixel○ = image obscured by cloud
00,250,50,751Nhập0,6327/0401/0606/0710/0814/0900,51Nhập0,6327/0413/0630/0715/09
🛰 For reference Không áp dụng cho chăn nuôi. A reference signal only; it never lowers the lot’s level automatically.
Data table (142 days of weather, 12/28 usable satellite images)
DateRainmmTemperaturelow–high °CHumidity%SunshinehoursNDVI
15/0941,823,5–27,1940
14/0950,124,9–27,1880,5
13/0985,223,9–27,3850,2
12/0924,423,1–28,5800,6
11/0941,923,1–28,2868,1
10/0915,323,4–30,48111,5
09/091,625,6–328111,8cloud
08/091,225,2–31,88112
07/09125,1–318012
06/093,824,9–29,98212
05/09724,5–30,68412
04/094,425,5–32,88212cloud
03/09025,6–33,573120,63
02/09026,2–33,27112
01/092,626,1–34,27310,1
31/0820,525–30,6832,3
30/0838,425,8–28,5900,8
29/08326,1–34,17010,6
28/082,827,2–33,97410,4
27/080,527–35,27712cloud
26/08027,4–33,9769,8
25/0889,325,4–30,3890
24/0889,825,5–29,4870
23/081,127,2–32,5681
22/08028,4–33,7656,4
21/0849,825,1–30,3852,2
20/087425,2–29,4921,3
19/0881,325,1–28940
18/0818,626,1–33,67910,1
17/08328,7–36,16812
16/082,626,6–35,67510,8
15/085,426,5–34,58211,40,38
14/084,327,3–368011,8
13/083,828,6–36,26712
12/081,428,9–35,665120,6
11/08128,5–33,77312
10/080,628,4–34,97012
09/084,927–35,57112
08/089,625,7–31,4847,3
07/0844,425,2–27,7940
06/0815,524,8–30876,7
05/0826,925,5–28,6881,6
04/080,327,5–31,6798,1
03/081,826,3–32,67511
02/0811,226,7–31,68310,7
01/0813,225–31,2868,4
31/0712,225,2–29,5895
30/0712,224,2–29,4882,6
29/0729,624,4–29,9889
28/0741,725–29,4914,1
27/0711,427,3–35,37412
26/07226,3–33,48011,7cloud
25/076,625,6–31,18510,4
24/079,525,8–32,18510,5
23/076,827,2–35,16910,3
22/071,127,3–356212,2
21/070,428,8–365411,4
20/071,729,8–37,35011,6
19/07029,1–36,75012
18/07027,8–365612,2cloud
17/07028,7–34,46111,1
16/072,325,9–34,96810,4
15/071,627,9–33,5704,9
14/070,326,9–33,97911,7
13/0734,225–31,78311,9
12/075,927,2–31,77911,1
11/073,128,7–34,96411,10,61
10/07126,1–34,26711,7
09/074,625,9–34,26711
08/071,927,4–356412cloud
07/075,325,5–34,17612,3
06/074,625,8–31,4777,7
05/071,426,9–32,7734,7
04/0723,725,6–30,5890
03/0735,825,7–29,6936,6
02/0715,425,6–32,18011,2
01/077,928,6–33,87411,9
30/068,429–35,57011
29/060,929,3–36,86811,7
28/060,129,3–37,36411,3
27/062,629,6–37,47111,1
26/063,929,1–38,76010,6
25/061,232,6–40,14212,3
24/061,131,1–39,84412,5
23/06030,4–38,74711,9cloud
22/060,129,9–38,55011,9
21/060,629,1–38,35212,2cloud
20/060,628,9–39,45211,8
19/06030,2–36,7526,9
18/060,129,9–36,95111
17/060,627,5–34,7642
16/064,229,7–37,3579,9
15/06028,7–36,75711,4cloud
14/06028,4–36,56012
13/06027,6–35,66711,5
12/061,325,8–33,2829,8
11/0625,824,6–30,1867,6
10/0612,324,7–29,1803,2
09/068,925,6–29,8765,9
08/061,928–37,35812,1
07/060,829,1–35,76311,6
06/061,427–34,97111,6
05/06227,1–34,96512,2
04/060,328,5–38,96012,3
03/06128,4–37,66812,20,59
02/060,227,5–35,17412,2
01/06026,8–34,97312,20,61
31/05126–32,17912
30/05325,8–31,18311,9
29/054,926,5–33,98111cloud
28/050,129–36,66612,1
27/050,229,3–38,66612,20,61
26/05028,2–38,56012,20,61
25/05027,7–37,76412
24/05027,9–37,270120,6
23/05028–35,17212
22/050,426,8–33,77811,90,59
21/056,226,6–32,2858,7
20/0513,126,6–30,9896,7
19/053,827,1–32,3849
18/050,627–32,58310,6
17/051,527,3–338210,6
16/054,527–35,47711,8
15/050,727,3–35,67010
14/05026,7–34,5739,8
13/050,125,6–33,48511
12/05025–3285120,61
11/050,524,8–29,68511,8
10/05524,5–28,58410
09/058,124,5–28,4879,1
08/056,424,6–28,4896,7
07/051,724,6–31,48710,3cloud
06/05023–30,184120,59
05/050,222,8–288111
04/0541,123–25,1851,1
03/0511,124,1–32,2879,9
02/05022–30,9849,3
01/05021,2–27,97812
30/043,222,5–26,5784,8
29/04024,6–27,8757,1
28/04024–31,98610,7
27/04024,2–30,38411,2cloud

Sources: weather for the site’s coordinates from Open-Meteo (model grid ≈ 10 km); satellite imagery Sentinel-2 (Copernicus, atmospherically corrected — level L2A; retrieved from AWS Open Data) — scene IDs: S2A_48QWF_20260903_0_L2A, S2C_48QWF_20260904_0_L2A, S2B_48QWF_20260909_0_L2A.

Side-by-side timeline · newest first

Left: what the farm recorded. Right: weather, satellite imagery, sensors and self-reported readings for the same day — placed side by side so the two can be checked against each other.

Sources on the right: 🌦 Dịch vụ thời tiết (Open-Meteo) · 🛰 Vệ tinh Sentinel-2 · ✍️ Tự khai = measured by the farm, not independently verified.

👩‍🌾 What the farm recorded
🌦 Measured conditions
1 day with no entry
15/09
🌧️ 24–27°
🌧 42 mm1 rainy days☀️ 0 h💧 94%
Heavy rain:15/09 · 42 mm
14/09/2026

🌾Feeding

21:48 · #15 · late entry · 📍 inside site
Feed
Cám hỗn hợp gà đẻ
Quantity
640 kg

🌾Feeding

21:48 · #10 · 📍 inside site
Feed
37
Quantity
640 kg
⛈️ 25–27°
🌧 50,1 mm 💧 88% ☀️ 0,5 h Open-Meteo
9 days with no entry
05/09 – 13/09
🌧️ 23–32°
🌧 181 mm9 rainy days☀️ 80 h💧 82%
Heavy rain:11/09 · 42 mm12/09 · 24 mm13/09 · 85 mm
04/09/2026

📉Mortality / culling

21:48 · #9 · 📍 inside site
Head count
4 head
Cause
End-of-lay culling
🌦️ 26–33°
🌧 4,4 mm 💧 82% ☀️ 12 h Open-Meteo
🛰 Sentinel-2 satellite: obscured by cloud
9 days with no entry
26/08 – 03/09
🌧️ 25–35°
🌧 68 mm5 rainy days☀️ 80 h💧 76%
Heavy rain:30/08 · 38 mm31/08 · 21 mm
🛰 03/09: NDVI 0,63
25/08/2026

🌾Feeding

21:48 · #14 · late entry · 📍 inside site
Feed
Cám hỗn hợp gà đẻ
Quantity
1300 kg

🌾Feeding

21:48 · #8 · 📍 inside site
Feed
37
Quantity
1300 kg
⛈️ 25–30°
🌧 89,3 mm 💧 89% ☀️ 0 h Open-Meteo
14 days with no entry
11/08 – 24/08
🌧️ 25–36°
🌧 336 mm13 rainy days☀️ 103 h💧 77%
Heavy rain:19/08 · 81 mm20/08 · 74 mm21/08 · 50 mm
🛰 12/08: NDVI 0,6
🛰 15/08: NDVI 0,38
10/08/2026

🧹Housing cleaning / disinfection

21:48 · #7 · 📍 inside site
Method
Disinfectant spray
Product
Benkocid
☀️ 28–35°
🌧 0,6 mm 💧 70% ☀️ 12 h Open-Meteo
14 days with no entry
27/07 – 09/08
🌧️ 24–36°
🌧 235 mm13 rainy days☀️ 98 h💧 84%
Heavy rain:28/07 · 42 mm29/07 · 30 mm05/08 · 27 mm
26/07/2026

🌾Feeding

21:48 · #13 · late entry · 📍 inside site
Feed
Cám hỗn hợp gà đẻ
Quantity
1320 kg

🌾Feeding

21:48 · #6 · 📍 inside site
Feed
37
Quantity
1320 kg
🌦️ 26–33°
🌧 2 mm 💧 80% ☀️ 11,7 h Open-Meteo
🛰 Sentinel-2 satellite: obscured by cloud
14 days with no entry
12/07 – 25/07
🌧️ 25–37°
🌧 70 mm9 rainy days☀️ 152 h💧 68%
Heavy rain:13/07 · 34 mm
11/07/2026

📉Mortality / culling

21:48 · #5 · 📍 inside site
Head count
7 head
Cause
Died of disease
🌦️ 29–35°
🌧 3,1 mm 💧 64% ☀️ 11,1 h Open-Meteo
🛰 Sentinel-2 satellite: NDVI 0,61
14 days with no entry
27/06 – 10/07
🌧️ 26–37°
🌧 114 mm12 rainy days☀️ 134 h💧 74%
Heavy rain:03/07 · 36 mm04/07 · 24 mm
26/06/2026

🌾Feeding

21:48 · #12 · late entry · 📍 inside site
Feed
Cám hỗn hợp gà đẻ
Quantity
1350 kg

🌾Feeding

21:48 · #4 · 📍 inside site
Feed
37
Quantity
1350 kg
🌦️ 29–39°
🌧 3,9 mm 💧 60% ☀️ 10,6 h Open-Meteo
29 days with no entry
28/05 – 25/06
🌧️ 25–40°
🌧 73 mm14 rainy days☀️ 307 h💧 64%
Heavy rain:11/06 · 26 mm
🛰 01/06: NDVI 0,61
🛰 03/06: NDVI 0,59
27/05/2026

🧹Housing cleaning / disinfection

21:48 · #3 · 📍 inside site
Method
Bedding replaced
Product
Vôi bột
☀️ 29–39°
🌧 0,2 mm 💧 66% ☀️ 12,2 h Open-Meteo
🛰 Sentinel-2 satellite: NDVI 0,61
25 days with no entry
02/05 – 26/05
🌧️ 22–39°
🌧 105 mm11 rainy days☀️ 251 h💧 80%
Heavy rain:04/05 · 41 mm
🛰 24/05: NDVI 0,6
🛰 26/05: NDVI 0,61
01/05/2026

💉Vaccination

21:48 · #11 · late entry · 📍 inside site
Vaccine
Vắc-xin Newcastle (gà)
Head count
500 head

💉Vaccination

21:48 · #2 · 📍 inside site
Vaccine
30
Head count
500 head
☀️ 21–28°
🌧 0 mm 💧 78% ☀️ 12 h Open-Meteo
3 days with no entry
28/04 – 30/04
🌦️ 23–32°
🌧 3 mm1 rainy days☀️ 23 h💧 80%
27/04/2026

🐔Flock placement

21:48 · #1 · 📍 inside site
Head count
500 head
Age at placement
17 weeks old
Variety
Isa Brown
☀️ 24–30°
🌧 0 mm 💧 84% ☀️ 11,2 h Open-Meteo
🛰 Sentinel-2 satellite: obscured by cloud
🛰 Sentinel-2 satellite: obscured by cloud
Full log (15 records) Open ▾
🌾

Feeding

#15
21:48 14/09/2026
Feed
Cám hỗn hợp gà đẻ
Quantity
640 kg
📍 GPS inside the site Late entry Correction of #10
Recorded by Farm owner · recorded 22:55 24/09/2026 · event receipt
🌾

Feeding

#14
21:48 25/08/2026
Feed
Cám hỗn hợp gà đẻ
Quantity
1300 kg
📍 GPS inside the site Late entry Correction of #8
Recorded by Farm owner · recorded 22:55 24/09/2026 · event receipt
🌾

Feeding

#13
21:48 26/07/2026
Feed
Cám hỗn hợp gà đẻ
Quantity
1320 kg
📍 GPS inside the site Late entry Correction of #6
Recorded by Farm owner · recorded 22:55 24/09/2026 · event receipt
🌾

Feeding

#12
21:48 26/06/2026
Feed
Cám hỗn hợp gà đẻ
Quantity
1350 kg
📍 GPS inside the site Late entry Correction of #4
Recorded by Farm owner · recorded 22:55 24/09/2026 · event receipt
💉

Vaccination

#11
21:48 01/05/2026
Vaccine
Vắc-xin Newcastle (gà)
Head count
500 head
📍 GPS inside the site Late entry Correction of #2
Recorded by Farm owner · recorded 22:55 24/09/2026 · event receipt
🌾

Feeding

#10
21:48 14/09/2026
Feed
37
Quantity
640 kg
📍 GPS inside the site Superseded by #15
Recorded by Farm owner · recorded 21:58 14/09/2026 · event receipt
📉

Mortality / culling

#9
21:48 04/09/2026
Head count
4 head
Cause
End-of-lay culling
📍 GPS inside the site
Recorded by Farm owner · recorded 21:58 04/09/2026 · event receipt
🌾

Feeding

#8
21:48 25/08/2026
Feed
37
Quantity
1300 kg
📍 GPS inside the site Superseded by #14
Recorded by Farm owner · recorded 21:58 25/08/2026 · event receipt
🧹

Housing cleaning / disinfection

#7
21:48 10/08/2026
Method
Disinfectant spray
Product
Benkocid
📍 GPS inside the site
Recorded by Farm owner · recorded 21:58 10/08/2026 · event receipt
🌾

Feeding

#6
21:48 26/07/2026
Feed
37
Quantity
1320 kg
📍 GPS inside the site Superseded by #13
Recorded by Farm owner · recorded 21:58 26/07/2026 · event receipt
📉

Mortality / culling

#5
21:48 11/07/2026
Head count
7 head
Cause
Died of disease
📍 GPS inside the site
Recorded by Farm owner · recorded 21:58 11/07/2026 · event receipt
🌾

Feeding

#4
21:48 26/06/2026
Feed
37
Quantity
1350 kg
📍 GPS inside the site Superseded by #12
Recorded by Farm owner · recorded 21:58 26/06/2026 · event receipt
🧹

Housing cleaning / disinfection

#3
21:48 27/05/2026
Method
Bedding replaced
Product
Vôi bột
📍 GPS inside the site
Recorded by Farm owner · recorded 21:58 27/05/2026 · event receipt
💉

Vaccination

#2
21:48 01/05/2026
Vaccine
30
Head count
500 head
📍 GPS inside the site Superseded by #11
Recorded by Farm owner · recorded 21:58 01/05/2026 · event receipt
🐔

Flock placement

#1
21:48 27/04/2026
Head count
500 head
Age at placement
17 weeks old
Variety
Isa Brown
Source
Trại giống Lương Mỹ (mẫu)
Veterinary certificate no.
KD-2604-882
Housing system
Barn with outdoor run
📍 GPS inside the site
Recorded by Farm owner · recorded 21:58 27/04/2026 · event receipt

Verify integrity

Every record is sealed with a SHA-256 fingerprint chained to the one before it. Press the button and your own browser recomputes the whole chain — you do not have to trust the server.

Last anchor: 25/09/2026 · Merkle root 7338c0371367471e… · Trang công khai: confirmed · OpenTimestamps (Bitcoin): confirmed (download .ots)

Plausibility cross-check

4 checks: 3 passed · 1 need on-site verification

Cross-checks lot counts, package counts and weights against the area farmed and the stock placed.

Nhập 500 con · chết 11 · còn 489

Stock & head count

  • Passed:
    Heads out + dead ≤ heads inNhập 500 con, chết 11, xuất 0 → còn 489 con.
  • Passed:
    Vaccinated heads vs flock1 đợt vắc-xin, phủ 100% đàn.
  • Needs on-site verification:
    Concurrent lots vs site sizeCùng lúc trong khu có 500 con (1 lứa), vượt mức hợp lý 45 con (30 con × 1,5 hoặc 120 m² × 20 con/m²).

Timing

  • Passed:
    Lot duration183 ngày từ bắt đầu đến hôm nay (tối đa 365 ngày với gà thả vườn).
12 checks not applicable / not enough data
  • Average weight at dispatchChưa xuất bán.
  • Growth rate vs breedChưa xuất bán.
  • Recorded feed vs output (FCR)Chưa xuất bán.
  • Dressing yieldChưa ghi khối lượng thịt.
  • Base figures not raised after harvestChưa thu hoạch / xuất bán — chưa áp dụng.
  • Days on farmChưa xuất bán.
  • Packed while freshChưa đóng gói.
  • No output after the lot was closedLô chưa kết thúc.
  • Whole-bird packages ≤ headsChưa xuất chuồng.
  • Label weight within outputChưa đóng gói.
  • Labels match declared packagesChưa đóng gói.
  • Distribution within packed quantityChưa phân phối.

Each threshold is the highest plausible level (roughly twice the best published yield), not an average. Yellow “!”: worth noting. Orange “!”: capped at level 1 until a cooperative officer inspects on site. Red “!”: a violation. Detail line kept in the original Vietnamese record.

How do you know this has not been altered?

  1. Every time something is logged, the system computes a “digital fingerprint” from the text and the photos — change a single character and the fingerprint changes completely.
  2. Those fingerprints are chained together and, at the end of each day, combined into one root hash that is published openly on the blockchain-anchor page. This lot’s root hash has been written into Bitcoin (block #968542), so no one — not even Nguồn Xanh — can backdate it.
  3. You can check it yourself: press “Verify now” and your own phone recomputes the whole chain and compares it with the published root hash. To check without trusting us at all, also press “Verify on Bitcoin”.

Anchoring only shows the log has not been altered after it was written. It does not prove that what was written is true — see the confidence level at the top of the page.

See how it works in 4 steps

  1. Each entry gets a fingerprint

    The type of work, date and time, text and original photos of each record are hashed into one digital fingerprint. Change a single character and the fingerprint is completely different.

  2. Records are chained together

    Every record carries the previous record’s fingerprint, forming a hash chain. Quietly change one character and the chain breaks.

  3. End of day: combined and published

    At the end of each day (around 23:55–23:59) the fingerprints of all lots with new records are combined into one Merkle root and published on the blockchain anchor page. If the server is down, the anchor is made when it restarts.

  4. Written into Bitcoin — cannot be backdated

    The root is submitted free of charge through OpenTimestamps into Bitcoin. This root is already in a block: no one — not even Nguồn Xanh — can backdate it.

Look this lot up

Report a problem

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Traceability page provided by Nguồn Xanh · Public blockchain anchor · Privacy

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