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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 - DAVAO ORIENTAL 1ST Award a ₱32.4M contract to O.G. SANTOS CONSTRUCTIONNational agencies

Transaction hash:
b6ac7dcbbedbd45bbf1f289d423f0bf21cb502440a82a1430f8d4b015a1ef775
Status:
Included and unchanged
Block:
#4,529 1,484 blocks after it
Position in block:
Transaction 181 of 259
Award day:
Aug 5, 2021 (5 yrs 3 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 #4,529 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 2021 OO-1", i.e. the FY2021 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 - DAVAO ORIENTAL 1ST awarded it to O.G. SANTOS CONSTRUCTION on 2021-08-05.
    Found
  5. 5. Contract & progress
    Contract / progress report (DPWH) · Sec. 5(d)
    DPWH contract 21LF0090: 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 2022-04-13). 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   b6ac7dcbbe…1ef775now      …
  2. 2. Block Merkle root changed
    stored   79a0959975…90d0c2now      …
  3. 3. Block #4529 hash changed
    stored   b67c8a284e…3ba950now      …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (9 steps)

How this one record is tied to the block's Merkle root, without needing the other 258 records. Each step hashes the current value together with the sibling shown.

  1. leaf  b6ac7dcbbedbd45bbf1f289d423f0bf21cb502440a82a1430f8d4b015a1ef775
  2. 01 L b5f6cc13148c054354e66c02ea48bca406e168dcede18cb0ab7daa4b58c4cf1c
  3. 02 R e93abfef7bbb886180a185b5515525ecefc6301036a26bb304ba6a20bd901f71
  4. 03 L 1b2ecf206518e6a8f0f54d0cfef9d859d6e7be1ecb679bd42e6f03198358ac81
  5. 04 R 9d0e2f38658cc2993d3b5d42c455e73984ed790acb646e2566af4a368ed565eb
  6. 05 L f68b21ba99c0e0f479e40fcfad0cbe21298cc7e43213642c6a98175b9ed4373a
  7. 06 L 12641e25e9f13d2aa7ee7386cacfc1c625de4dfe1cd13fdefee5ce7934ac8951
  8. 07 R 0b197dc5c58490804eefe28bf2c558eca5df7b44aac167488c56e37193182103
  9. 08 L f0e097962abee2040dfaf4052f80acd5b937e3cea190fb8764909ef210a66fb5
  10. 09 R 84efbfd620bf53297601c1b431d0f499f9f1ac4080d0c037692e8372974b8e96
  11. root  79a09599753884ca33010315cc78f1a7106fc5a5428289cd38e30cecf790d0c2