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 TANAUAN, BATANGAS Award a ₱995.5K contract to Z. ANTIOQUIA CONSTRUCTIONCities
Transaction hash:
3f052d4f36b2bb592a5efed8e87248523298c742d779e7befc8f1178cccca4b3
Status:
Included and unchanged
Block:
#2,987 3,026 blocks after it
Position in block:
Transaction 59 of 219
Award day:
Feb 10, 2017 (9 yrs 9 mo ago)
Value:
₱995,500.40
Project:
Infra Projects (Rebid)
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 #2,987 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 TANAUAN, BATANGAS awarded it to Z. ANTIOQUIA CONSTRUCTION on 2017-02-10.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 Tanauan 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 3f052d4f36…cca4b3now …
- 2. Block Merkle root changedstored 84bbd803bb…444fbdnow …
- 3. Block #2987 hash changedstored af7cb8c96c…9abbecnow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (8 steps)
How this one record is tied to the block's Merkle root, without needing the other 218 records. Each step hashes the current value together with the sibling shown.
- leaf 3f052d4f36b2bb592a5efed8e87248523298c742d779e7befc8f1178cccca4b3
- 01 L 3e31630f4b0cbe444b4726417ccf8b6665e1af5a7159946ae0c18ff675f53a7b
- 02 L d142cd8d95987bafaa4a3febab64c436fcc5d068a218bcd12f70e9827d68cd27
- 03 R ec117227608748ad0f9635d8f3c84112241852d3e77bd2975322e2f3e21e69b1
- 04 L 13c7cc7bb3c91fb167c682c265744a41b9d2b17edb552be2921d267d8d053476
- 05 L dabb04bdd4b0d2acd9a40ed22e7a2c1ae15a73f043cb63045fc937c19e075d87
- 06 L 930c8f424e7e1a5483ec8be943246e49db6916a249a658f6a4dbd34bf1f443eb
- 07 R 8e82d66f2511bbbeabc2abeb3371b38b8e874fb39137ee1e22c88e3d453bca8d
- 08 R 90dc2d4956729adf564a3601aabdf0beba4aa38286a0fc5f72e7c40f5ef91bec
- root 84bbd803bb8885157f662815e6f36e363b3f3a8a03423304a5b81a3e53444fbd