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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 - COMPOSTELA VALLEY Award a ₱38.0M contract to O.G. SANTOS CONSTRUCTIONNational agencies

Transaction hash:
75341b9a720c8efbd2a982b0999ff13146ec4d06d970fc5d61d1afcdad297b58
Status:
Included and unchanged
Block:
#3,339 2,674 blocks after it
Position in block:
Transaction 142 of 302
Award day:
Feb 20, 2018 (8 yrs 8 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 #3,339 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 2018 Other Infrastructure (CSSP)", i.e. the FY2018 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 - COMPOSTELA VALLEY awarded it to O.G. SANTOS CONSTRUCTION on 2018-02-20.
    Found
  5. 5. Contract & progress
    Contract / progress report (DPWH) · Sec. 5(d)
    DPWH contract 18LA0100: 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 2019-02-15). 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   75341b9a72…297b58now      …
  2. 2. Block Merkle root changed
    stored   216e8c3433…5d5f7bnow      …
  3. 3. Block #3339 hash changed
    stored   070c3e4712…f6b8e8now      …
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 301 records. Each step hashes the current value together with the sibling shown.

  1. leaf  75341b9a720c8efbd2a982b0999ff13146ec4d06d970fc5d61d1afcdad297b58
  2. 01 R 7545130f2649d7a6a02b32e1f9d9130c71d8374569d862e97eeaa08a9748c79d
  3. 02 L 33fe3e641547498f4a31cd20a951226e5348aaf5966210dd314880c3707ce457
  4. 03 L 1ef6fe0f13b54fee6e46d2ff2689afd88ecf6b58577cf5de03e92cf445996b07
  5. 04 L 0b7c8fb800f0cddffbbfbdc77b7490c8cf860e4299de53f08c5ae3b69c254fdb
  6. 05 R 521e4d7c8aac66011c40c9b54283f7457fc8eeb14f015364237bdecd2206ab67
  7. 06 R 745311fc0a6507e3a1b712c2014cddcc0b85435274d6392227cb106f344ea428
  8. 07 R 328e72f61d45e945e10d87dfc0a1c7996a22f454f3622af5ffb431da91f9d316
  9. 08 L b90cde5cf90e03763d808df2bb29dd3435e0df2d063a7cf282a045fc6f79aeb4
  10. 09 R b19fc29c1d7f56a510373adb2896035a80141bf3e91961acf0d5721ad98867d0
  11. root  216e8c34331259e58952b65a1c7fe16b45a7ebd1012f9d2adaf9b88d835d5f7b