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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 - MALABON-NAVOTAS SD Award a ₱37.4M contract to C.B. TAMPENGCO CONSTRUCTION & SUPPLYNational agencies

Transaction hash:
0a6f2ce4505bee15bb7edeed1e4d19627624be494493bdfb4101a168718ccaaa
Status:
Included and unchanged
Block:
#4,412 1,601 blocks after it
Position in block:
Transaction 7 of 201
Award day:
Apr 6, 2021 (5 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 #4,412 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 LP", 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 - MALABON-NAVOTAS SD awarded it to C.B. TAMPENGCO CONSTRUCTION & SUPPLY on 2021-04-06.
    Found
  5. 5. Contract & progress
    Contract / progress report (DPWH) · Sec. 5(d)
    DPWH contract 21OA0041: 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 2022-01-21). 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   0a6f2ce450…8ccaaanow      …
  2. 2. Block Merkle root changed
    stored   9a412d7fad…038ee4now      …
  3. 3. Block #4412 hash changed
    stored   b0cf0569e3…bc3c80now      …
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 200 records. Each step hashes the current value together with the sibling shown.

  1. leaf  0a6f2ce4505bee15bb7edeed1e4d19627624be494493bdfb4101a168718ccaaa
  2. 01 L 0a555cbc989f8b6f277dfbd4cb0d62910fcbaa8d94cd7d73da7ae12196fd2004
  3. 02 L 1cd694e0710632b94e7c5fac7d3f20f9c6bead2ebd593cb2919a3f3715721fec
  4. 03 L e22b1df570a6aaa090c3d0c680e7c7260608ae3c2a9e9473fffefb5ee69bc859
  5. 04 R eaa5464f2db762c4c8cc023c2d99fd819bc29539ee2eb9a4cec76d5aed15230e
  6. 05 R 7b399838d51e152a8b02fec9afe176688edbbcb49281c05eef09aea7fdfdee8d
  7. 06 R ca9ae7d6a30aafd2fefd0d5201876f38a714a77548495431bc92c2879076f340
  8. 07 R 70cfcd8b6b1c18afa96f1de7382931f29e8bb7d42c706fbe20e800ac3b0a944c
  9. 08 R 487b934832f6e6929a353ef484c0ac39d05ebb6ee5bdd6b2d6c6126dc0917c27
  10. root  9a412d7fad9d5ea7d41883e69b98c2a0aca7b7e679cde987fca3379fad038ee4