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
PHILIPPINE INSTITUTE OF VOLCANOLOGY AND SEISMOLOGY Award a ₱727.5K contract to ZAMBOPEN CONSTRUCTIONNational agencies
Transaction hash:
7ee1f47156154c400a30d1f3305a4ddb91f32ebc655eb8e903ed22a8229254cc
Status:
Included and unchanged
Block:
#5,983 30 blocks after it
Position in block:
Transaction 219 of 442
Award day:
Oct 7, 2025 (1 yr 1 mo ago)
Value:
₱727,461.80
Project:
Rehabilitation of Earthquake Monitoring Stations
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 #5,983 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)PHILIPPINE INSTITUTE OF VOLCANOLOGY AND SEISMOLOGY awarded it to ZAMBOPEN CONSTRUCTION on 2025-10-07.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 7ee1f47156…9254ccnow …
- 2. Block Merkle root changedstored 6fff898684…1c3024now …
- 3. Block #5983 hash changedstored e8cb0f506e…2b2ab6now …
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 441 records. Each step hashes the current value together with the sibling shown.
- leaf 7ee1f47156154c400a30d1f3305a4ddb91f32ebc655eb8e903ed22a8229254cc
- 01 L 7dd99aeb3b7a61d38baf2ea32432b3b781d0d7916ab85067e8cb151e2c56f6c0
- 02 L 6b621c2a2dca277cc463994ac982dc2cee06f58689821124569fc6f24a2010e0
- 03 R dc13f97572f0e6c0e8fdd34cc61fb74332a790db7f0b81d923abfdbc9fcac108
- 04 L 0d8e8ff1a259e8a2f77733f21e14491a97f51ed1793e190ed07785a3b015fe82
- 05 L 8e7ea964941028aac9a81412fc938784cfac05cc51bbe1fd93684f3f3dcadcac
- 06 R ebedab750d9e44b2a340ac30165ecc83c960bba534fa0f7b62cb484e2d2374a3
- 07 L 5fb7860b6a00bf975fc75a9e752add55905e038a77ff5ad775504f661d232b6b
- 08 L 89d67229fe5869aa3d45e65c032aa2a45a5860f03ab1f0b3b07d158c67414200
- 09 R 0162c3fac591aa66526f7a410b254bb6dd5f0fa37c45877d9bf69034be855a82
- root 6fff898684a908a71d77565e28892144752693131bf5f446a1cc9c8ecd1c3024