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FY2026 GAA: ₱6.79T
PisoScan
DemoFor public education only. These blocks are built by PisoScan from published PhilGEPS records to show how a budget ledger like CADENA would work. No government agency created or signed them, and this is not an official ledger. How it works

Transaction details

API
Transaction action

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - NORTHERN SAMAR 1ST Award a ₱4.0M contract to PJ TAN CONSTRUCTIONNational agencies

Transaction hash:
05aa3ea0d22d3b9360b3d4e7ed3344ca8e0e4cff1ef59964749e6c29b32b612c
Status:
Included and unchanged
Block:
#3,031 2,982 blocks after it
Position in block:
Transaction 4 of 241
Award day:
Mar 29, 2017 (9 yrs 7 mo ago)

Accountability

Bill Sec. 3 and 19
Accountable officer:
Not stated in the source. PhilGEPS does not publish who certified the award.
Certification:
Not certified No agency signed this record. Under CADENA the accountable officer would sign it with their own key.
Demo signature:
Block #3,031 signature valid Demo key, proves nothing about the governmentPublic key

Linked records: from budget to payment

Bill Sec. 5
  1. 1. Appropriation
    GAA line item · Sec. 5(b)
    DPWH lists the funding source as "Regular Infra - GAA 2017 MFO-1", i.e. the FY2017 GAA. The exact UACS line is not given.
    Partly
  2. 2. Allotment release
    SARO / allotment · Sec. 5(c)(iii)
    Not published per project. DBM releases SAROs, but not linked to individual contracts.
    Not published
  3. 3. Cash allocation
    Notice of Cash Allocation · Sec. 5(c)(iv)
    Not published per project.
    Not published
  4. 4. Contract award
    Notice of Award (PhilGEPS) · Sec. 5(d)
    DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - NORTHERN SAMAR 1ST awarded it to PJ TAN CONSTRUCTION on 2017-03-29.
    Found
  5. 5. Contract & progress
    Contract / progress report (DPWH) · Sec. 5(d)
    DPWH contract 17IH0015: Completed, 100% physical progress.
    Found
  6. 6. Payment
    Disbursement voucher · Sec. 5(c)(viii)
    Not published. No public source shows how much of this contract has been paid.
    Not published
  7. 7. Completion
    Certificate of completion · Sec. 5(d)
    DPWH marks the contract "Completed" (end 2017-07-14). The certificate itself is not published.
    Partly
  8. 8. Audit
    COA annual audit report · Sec. 5(e)(iii)
    No COA finding linked to this contract.
    Not published

2 of 8 documents found, 2 partly. Under CADENA every step would be published within 7 working days and linked to this record.

Tamper test: try changing this record

Demo

Edit the amount as if someone quietly changed the record. Your browser re-hashes it and walks up the chain. Nothing is saved.

  1. 1. Record fingerprint changed
    stored   05aa3ea0d2…2b612cnow      …
  2. 2. Block Merkle root changed
    stored   22c92cfbdd…f380b8now      …
  3. 3. Block #3031 hash changed
    stored   daaa37bc2c…b458benow      …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (8 steps)

How this one record is tied to the block's Merkle root, without needing the other 240 records. Each step hashes the current value together with the sibling shown.

  1. leaf  05aa3ea0d22d3b9360b3d4e7ed3344ca8e0e4cff1ef59964749e6c29b32b612c
  2. 01 R 069da897fd87a2912f749143758162675f98c69164dcf522cd4b4e3c6f4f6b6a
  3. 02 R eb2281ed44a70dd399ee5e61d2f9954c96e44c9085cb66d1fa3040f1db5a8bcf
  4. 03 L 5870914507e599811789d2ca23426f613e44e7c03b33369910a2810da2ecb3be
  5. 04 R 21bd1c7d23c9e06e3b1f0efc7f0f7511316c1463a9322e0c0cbfc89be766394a
  6. 05 R bc3f1ba7fb62b1d19bb9e13e194faf016b9e96fb5c70d0466e0924cd556a0378
  7. 06 R b924429ed3779484f1718de24cb9a4369feebed7a6f85bce456ff918b10b061f
  8. 07 R 49bc8279b7f91afb1ba1af3f953863b52ba07434df44ce0961e07bb41794f90c
  9. 08 R de2da5567cb443055e2a599c3fd625bcb40ad13992ae3661acb89bbdb53f61ac
  10. root  22c92cfbdde0238c832f5cb04acd71978e0a11711e7bc07a37254e42a2f380b8