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 - SURIGAO DEL NORTE Award a ₱95.3M contract to VICENTE T. LAO CONSTRUCTIONNational agencies
Transaction hash:
335efc9594bd8ffc92ca2bd0a9fe9766b33c7fbadf3fa3e777e83ac8daa9b9d0
Status:
Included and unchanged
Block:
#5,908 105 blocks after it
Position in block:
Transaction 73 of 370
Award day:
Jul 16, 2025 (1 yr 3 mo ago)
Value:
₱95,264,308.88
Project:
25NG0050
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 #5,908 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)The award does not say which budget line pays for it.Not published
- 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 - SURIGAO DEL NORTE awarded it to VICENTE T. LAO CONSTRUCTION on 2025-07-16.Found
- 5. Contract & progressContract / progress report (DPWH) · Sec. 5(d)No matching DPWH contract record (only DPWH contracts are listed with progress).Not published
- 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)No completion certificate published.Not published
- 8. AuditCOA annual audit report · Sec. 5(e)(iii)No COA finding linked to this contract.Not published
1 of 8 documents found, 0 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 335efc9594…a9b9d0now …
- 2. Block Merkle root changedstored 72fa9b1b5c…914908now …
- 3. Block #5908 hash changedstored 57f65a2220…4eb749now …
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 369 records. Each step hashes the current value together with the sibling shown.
- leaf 335efc9594bd8ffc92ca2bd0a9fe9766b33c7fbadf3fa3e777e83ac8daa9b9d0
- 01 L 3303b95a7c2e29caa19b7cb21f9dba8bd756767a87cff807b23696e738911b59
- 02 R 4623cd08d3513bb3fee945a3cbd32e501aa2e88413fa84e1dec917026945c58a
- 03 R 1e043149b34a56df354da62ec5f097382a57fc51626244407417a8ad0a78d7ea
- 04 L c735f458774d9acb395242feae424c5aecb94623fb7056924a5a8d858bbab62c
- 05 R f3f060ceb0e1293592291e491f2428eefda6ec2e283c099cbb083951250611e0
- 06 R 6bfd26056d5a3d30014e5e2895334808aa11952f76c9e02f64ea7767e5a23e50
- 07 L 88993f073d56f22471613e0daed564fac63c037350785c94693994be61eece6a
- 08 R 25e28445a46fd975c1f1e175b97cf6954960490bbd21305884ff81ffd4a5c2c6
- 09 R 745e4159b97f9baa3b0fc9504c67062d628b60b6164423e1af593870c63fb09a
- root 72fa9b1b5cd5ac8f7edc2c8bc4e83676b97c51f9863f12b00a5bc8df80914908