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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 CITY DEO Award a ₱79.9M contract to VICENTE T. LAO CONSTRUCTIONNational agencies

Transaction hash:
8a368fd346b475de05029ebdd7744de20009a02023d6d2c1c33a9345770f1e84
Status:
Included and unchanged
Block:
#4,742 1,271 blocks after it
Position in block:
Transaction 292 of 551
Award day:
Mar 10, 2022 (4 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 #4,742 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 2022 OO-2", i.e. the FY2022 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 CITY DEO awarded it to VICENTE T. LAO CONSTRUCTION on 2022-03-10.
    Found
  5. 5. Contract & progress
    Contract / progress report (DPWH) · Sec. 5(d)
    DPWH contract 22LB0028: 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 2024-07-07). 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   8a368fd346…0f1e84now      …
  2. 2. Block Merkle root changed
    stored   7a43484e33…a6ded1now      …
  3. 3. Block #4742 hash changed
    stored   a65692553d…b1df44now      …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (10 steps)

How this one record is tied to the block's Merkle root, without needing the other 550 records. Each step hashes the current value together with the sibling shown.

  1. leaf  8a368fd346b475de05029ebdd7744de20009a02023d6d2c1c33a9345770f1e84
  2. 01 R 8a52e6b1e45831074fd1c75ef6fa034505929903b9da40252252cdb3dda43da2
  3. 02 R 1be7fd49d35eb778d5dbd243417f1851618ab2d6d7f62718344e8ea51c9209d3
  4. 03 L 7b9259e9be43484689ffb6be10b54907220956750158c66a7b6028fcccf9cf33
  5. 04 R 369fbbe50d9d9c3947eae2c14bd1094eee16a869b786edf99dfc01460042d887
  6. 05 R c9d6d96beb08f656fa1d483e42b59dfcb4edaa7512903fdc43cfaaa3ce1d0961
  7. 06 L 6491235ba5fd287663f87591150dd2d67bf06329937171e28892141409f42800
  8. 07 R 65b852e5d2f081a4432166dbc15d7d69e5930ac39a373e5530f3437aae3d678a
  9. 08 R d8ce4ca0320f54af816cd7405dd398ee1f7273057acf840f90c94c2251117a6e
  10. 09 L 606806657decfdb1d6aadc0aa9e6c9d00804b39b7d5941f489ff20f373441168
  11. 10 R 382a411762afc40a6e35f41c27cf32ee9e718e41bb912084c181d505d5ba514c
  12. root  7a43484e33b9d52e38187917bc5d343881f0eb63a396fc956048d5d331a6ded1