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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 - NORTH METRO MANILA Award a ₱29.2M contract to ALLEYWAY CONSTRUCTIONNational agencies

Transaction hash:
280a1c4eff8780bddd4eb2398982e0c0c5392b703e7c17cae7db004a08d55ee1
Status:
Included and unchanged
Block:
#3,424 2,589 blocks after it
Position in block:
Transaction 40 of 272
Award day:
May 21, 2018 (8 yrs 5 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 #3,424 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 - Flood Control: Construction - Drainage (e.g., Closed and Open Conduits, Spillway), Roads: Rehabilitation - PCCP". 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 - NORTH METRO MANILA awarded it to ALLEYWAY CONSTRUCTION on 2018-05-21.
    Found
  5. 5. Contract & progress
    Contract / progress report (DPWH) · Sec. 5(d)
    DPWH contract 18OE0137: 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 2019-04-30). 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   280a1c4eff…d55ee1now      …
  2. 2. Block Merkle root changed
    stored   baeca8f43d…b8f81bnow      …
  3. 3. Block #3424 hash changed
    stored   b071376e22…71a3a5now      …
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 271 records. Each step hashes the current value together with the sibling shown.

  1. leaf  280a1c4eff8780bddd4eb2398982e0c0c5392b703e7c17cae7db004a08d55ee1
  2. 01 R 287758546cabb5a8d33a44b712e179e815d754e8e664b2ad0acaa6fe7504bd53
  3. 02 R a26a644df4d4d60463f001e044413bcffa799b4f87866dffd0d87a762d4ed54e
  4. 03 R a9141a88644d1c744bda43d641c30a69cf2beb83896fac7f0861d0559e0b55b7
  5. 04 L 3e2795d5430018e23121a8b569af5fb356ae0673579c4728bfcac52a9d7bbbc2
  6. 05 R 1b7ca46ee46e9eab223f253f7626e305061a71ee1bf1b8550a17d1359c8c52a0
  7. 06 L 885dd1317a84c923f5bd47d4e5a458e086fb1ed32c0259c4f37fc8d6de003640
  8. 07 R 2df51130881b833eed60def081f60c4c382ea2d7f7c1d74472da9800e34207d7
  9. 08 R 4191c35f957442790c2b9d2e4e5c6f642a79ad641d0e9749936034e7d059d632
  10. 09 R fcce3e301bf83eaa040ab010a6108b1f6fec968b81eb72724962da860ee7fa3d
  11. root  baeca8f43d25c05fbc24d33d6698801b9c0641ec0dc4c7e30d11672d34b8f81b