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
APITransaction action
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION XII Award a ₱100.9M contract to VICENTE T. LAO CONSTRUCTIONNational agencies
Transaction hash:
7aec63451f8800bb287b98f1436171b90da0bde180054a9e054c490ec3a76485
Status:
Included and unchanged
Block:
#4,783 1,230 blocks after it
Position in block:
Transaction 0 of 3
Award day:
Apr 24, 2022 (4 yrs 6 mo ago)
Value:
₱100,900,161.36
Project:
22M00064
Full record:
Accountability
Bill Sec. 3 and 19Responsible agency:
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 #4,783 signature valid Demo key, proves nothing about the governmentPublic key
Linked records: from budget to payment
Bill Sec. 5- 1. AppropriationGAA line item · Sec. 5(b)DPWH lists the funding source as "Regular Infra - GAA 2022 OO-1", i.e. the FY2022 GAA. The exact UACS line is not given.Partly
- 2. Allotment releaseSARO / allotment · Sec. 5(c)(iii)Not published per project. DBM releases SAROs, but not linked to individual contracts.Not published
- 3. Cash allocationNotice of Cash Allocation · Sec. 5(c)(iv)Not published per project.Not published
- 4. Contract awardNotice of Award (PhilGEPS) · Sec. 5(d)DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION XII awarded it to VICENTE T. LAO CONSTRUCTION on 2022-04-24.Found
- 5. Contract & progressContract / progress report (DPWH) · Sec. 5(d)DPWH contract 22M00064: Completed, 100% physical progress.Found
- 6. PaymentDisbursement voucher · Sec. 5(c)(viii)Not published. No public source shows how much of this contract has been paid.Not published
- 7. CompletionCertificate of completion · Sec. 5(d)DPWH marks the contract "Completed" (end 2023-12-28). The certificate itself is not published.Partly
- 8. AuditCOA 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
DemoEdit the amount as if someone quietly changed the record. Your browser re-hashes it and walks up the chain. Nothing is saved.
- 1. Record fingerprint changedstored 7aec63451f…a76485now …
- 2. Block Merkle root changedstored dd61c3b3e3…6e6143now …
- 3. Block #4783 hash changedstored 1cb7e1d4fe…a35bd4now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (2 steps)
How this one record is tied to the block's Merkle root, without needing the other 2 records. Each step hashes the current value together with the sibling shown.
- leaf 7aec63451f8800bb287b98f1436171b90da0bde180054a9e054c490ec3a76485
- 01 R 82ba3097531dffe8117f17b107db1eafc7dd9dc13a1678e62105072d40dc229a
- 02 R b85241f2f0443d993a50375f3a8d76c496ee9f938d71288086aa309a74935ea9
- root dd61c3b3e39eca568adbaf6452ea7bf8e5b06c949e74f7663e94dc49bc6e6143