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 TAYABAS, QUEZON Award a ₱896.9K contract to R.A MENDIOLA CONSTRUCTION & DEVELOPERCities
Transaction hash:
e7ffcd9edfe3a45b209ff33728baa247e3aced1aa2578da0510d1d995f0c64ad
Status:
Included and unchanged
Block:
#1,556 4,457 blocks after it
Position in block:
Transaction 82 of 93
Award day:
Sep 10, 2012 (14 yrs 2 mo ago)
Value:
₱896,862.07
Project:
PROJECT NO. 085 – Improvement/Concreting of Barangay Road of Iba. Palale
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 #1,556 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 TAYABAS, QUEZON awarded it to R.A MENDIOLA CONSTRUCTION & DEVELOPER on 2012-09-10.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 Tayabas 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 e7ffcd9edf…0c64adnow …
- 2. Block Merkle root changedstored ae7db62df5…37b690now …
- 3. Block #1556 hash changedstored 07fb485e20…d7d602now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (7 steps)
How this one record is tied to the block's Merkle root, without needing the other 92 records. Each step hashes the current value together with the sibling shown.
- leaf e7ffcd9edfe3a45b209ff33728baa247e3aced1aa2578da0510d1d995f0c64ad
- 01 R e89443128f3d9b3fc0bbe41f9d23b0d002b22c8526d5f5dc05c71ba0234be395
- 02 L 91b6b3c1d1d7287746f3a4109e2fbaf98a3cbdb8aa0ed6a2e020bb9e3d4bb398
- 03 R 2c7fb4a4460573df0305380f6475b3a0682e1e6d5fef8217fd6b55cb06083749
- 04 R 825d9befc9898281ed08bd58262c8bc9f1d7eed14ba4b2fe9cbd184de6ea9d76
- 05 L f38881a0eb669ec7041cfef60a74aa5a40d985ba3e323141933a8d9a37252509
- 06 R b19b0c9523af2472c36716d5c814b606cbb33938ab803d05a89594595bf4a2b6
- 07 L 4be6fd903c4fe5e81e610b195bfcea317859cb2309d0f815dbc283dd229a7460
- root ae7db62df54a9cd0249f83b70fefa9c46803ba5b54842a118abb86196937b690