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
CITY OF NAGA, CAMARINES SUR Award a ₱489.4K contract to PEU CONSTRUCTION AND SUPPLYCities
Transaction hash:
b90cc0afdc7d1ff3065aaa6d4d6a1a865645ab7d1bb51198fd342f5d364ee4a7
Status:
Included and unchanged
Block:
#5,874 139 blocks after it
Position in block:
Transaction 217 of 315
Award day:
Jun 8, 2025 (1 yr 5 mo ago)
Value:
₱489,436.10
Project:
Infrastructure Project
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 #5,874 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)CITY OF NAGA, CAMARINES SUR awarded it to PEU CONSTRUCTION AND SUPPLY on 2025-06-08.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)COA's CY2024 audit of City of Naga gave a "qualified" opinion on its financial statements (not specific to this contract).Partly
1 of 8 documents found, 1 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 b90cc0afdc…4ee4a7now …
- 2. Block Merkle root changedstored dc00b0ada7…0dd6b5now …
- 3. Block #5874 hash changedstored 0f9dc0cee9…15ede6now …
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 314 records. Each step hashes the current value together with the sibling shown.
- leaf b90cc0afdc7d1ff3065aaa6d4d6a1a865645ab7d1bb51198fd342f5d364ee4a7
- 01 L b838084aadfe2d6f421cdcf696aa528d6510ddb9c5781d1fab45f45508ca8a7b
- 02 R 2e32d95bbcc48e045cdb58ec609ca4a7af5836effb13b491644fea9e424f2d66
- 03 R 6ead81f709381def969075b5587364376f274d75f216b20afe77f3580129a916
- 04 L 39db9d367fdb04507c759606aa4322310c08de8a5b4285b2979a617010b990ae
- 05 L aed5ca553ef8bbbf958e24d705c1ff275a9d39d499fad810f6a7d07a3fdfef19
- 06 R e8096f06d6f1165f99ea1aca563db72187f5b5a43066665a5390a12b4f234ff8
- 07 L 31bf5932544155a489127961f9188a7b6e939f54fc0d1c0778efb2ac2c839f8b
- 08 L 6d6d72e34d8a9c4610eb700a83e49db26424f4d415420b3217dd22e48164f664
- 09 R 34c20f91d64ac7686a6c07a20a2a6fb84fcb46968b01728c949d2d2c8a375e14
- root dc00b0ada7790f7fb5a4094579f32638d17cda3cbd3bdab9a398b9a3860dd6b5