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
PROVINCE OF QUEZON Award a ₱3.2M contract to R.A MENDIOLA CONSTRUCTION & DEVELOPERProvinces
Transaction hash:
e2cccd83f18d2843b27b0e83700ce3d3468fdfd7d51d1353384277ae7e80d8a6
Status:
Included and unchanged
Block:
#5,881 132 blocks after it
Position in block:
Transaction 604 of 695
Award day:
Jun 16, 2025 (1 yr 5 mo ago)
From:
Value:
₱3,212,423.17
Project:
Construction of Materials and Civil Works
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 #5,881 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)PROVINCE OF QUEZON awarded it to R.A MENDIOLA CONSTRUCTION & DEVELOPER on 2025-06-16.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)COA's CY2024 audit of Quezon gave a "unmodified" 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 e2cccd83f1…80d8a6now …
- 2. Block Merkle root changedstored d85aa8104d…a9a5b2now …
- 3. Block #5881 hash changedstored ed0f2a8845…4000c4now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (10 steps)
How this one record is tied to the block's Merkle root, without needing the other 694 records. Each step hashes the current value together with the sibling shown.
- leaf e2cccd83f18d2843b27b0e83700ce3d3468fdfd7d51d1353384277ae7e80d8a6
- 01 R e2fedcfb03e6a8fb82201a0cdb94785c74ec28c72d8664c1efcb31487a8a0e68
- 02 R 26bcb20bb6a7a4dec4e131190fc77c363e04b2aeefd02817c364557e841836b7
- 03 L 3350c9f933d80171f60efc29669da9cb1bd0f42bde61ce1dfdb780710b9b803e
- 04 L 607f48a1a2a5a1933e0f4bb268525f5a014c787ac7664b70b3cbddacbab6197a
- 05 L dc0a40b48d6395ba0b785ee072d6cc2dd36e1600f370e2f4be9456a9d80699b9
- 06 R be74a1d2793f588bd888d9a47d97672f0d92de4c1e2ec1eafe30bc8327cc289f
- 07 L 8c599c6a6ed809f56fc7522087707c5f63c8a6abd6a6f8862f583fb7b22c4838
- 08 R 94c9c8742b34dbc94dd53fc82694bed3b8d32bf15cdd757168a685eb1830c5a1
- 09 R 866492cf9e33f7e48ad1bf2f7e2cd2dd13ec5d9e64c533e944597ffa92312615
- 10 L 38a2f2f0fc82b5d6ecbc45b8d65721ebb86aef0990b7fea987764de03855ef83
- root d85aa8104db83822bbacabb0a117cca621e1056076c0454b853625cb34a9a5b2