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 ZAMBOANGA, ZAMBOANGA DEL SUR Award a ₱496.3K contract to MENG-BING CONSTRUCTIONCities
Transaction hash:
552bcd50a4e678709cd4e515ee6ab2b8ee84fb6b7e94c34d22ef6eb8183d1a8c
Status:
Included and unchanged
Block:
#671 5,342 blocks after it
Position in block:
Transaction 3 of 13
Award day:
Aug 24, 2009 (17 yrs 2 mo ago)
Value:
₱496,332.71
Project:
Construction of Slope Protection at Aurora Village, Tumaga
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 #671 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 ZAMBOANGA, ZAMBOANGA DEL SUR awarded it to MENG-BING CONSTRUCTION on 2009-08-24.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 Zamboanga 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 552bcd50a4…3d1a8cnow …
- 2. Block Merkle root changedstored 1b291d0f15…2926eanow …
- 3. Block #671 hash changedstored a763eef6fc…e73665now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (4 steps)
How this one record is tied to the block's Merkle root, without needing the other 12 records. Each step hashes the current value together with the sibling shown.
- leaf 552bcd50a4e678709cd4e515ee6ab2b8ee84fb6b7e94c34d22ef6eb8183d1a8c
- 01 L 3fb19662ac2783f74670f2446e27907beeecfc276a8bc962fb5774bbb896adce
- 02 L ce2352c5b7ea522236fcaa2abd172fd7fdff90e08736a2beb46bd0f1d4ab009d
- 03 R 723352ef1d741e0d1fe4cbd5728fb0863440aa1d98863024ba79669a73cde5a9
- 04 R 74fb323d891266ef8310c406d928ef31134482f6b75674322c759cdc010f99ae
- root 1b291d0f150014ef43e4c7c138d3bb80fb8843b9c9bf01c014bc509d6d2926ea