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 LAOAG, ILOCOS NORTE Award a ₱92.0K contract to MMA CONSTRUCTIONCities
Transaction hash:
75df2b7a7a3ae577fe3c92df735bf3fe56948b21368672dd22a6a63928f73443
Status:
Included and unchanged
Block:
#341 5,672 blocks after it
Position in block:
Transaction 5 of 15
Award day:
May 19, 2008 (18 yrs 5 mo ago)
Value:
₱92,000.00
Project:
Construction of Box Culvert
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 #341 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 LAOAG, ILOCOS NORTE awarded it to MMA CONSTRUCTION on 2008-05-19.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 Laoag 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 75df2b7a7a…f73443now …
- 2. Block Merkle root changedstored 6b1375abb3…eff0a6now …
- 3. Block #341 hash changedstored 4f30fc9c94…27a939now …
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 14 records. Each step hashes the current value together with the sibling shown.
- leaf 75df2b7a7a3ae577fe3c92df735bf3fe56948b21368672dd22a6a63928f73443
- 01 L 7227b54907aed98999b0165401050e6e4495dba3a5df636700fbf932a23d85b1
- 02 R c0b04886559bfbff9c0adc084459837d6f1c30e07e9c37ad35e88f2abb24f226
- 03 L 0e5aeacb072b4f2142ac715152e372c50e39d3afa0e7909290add85128233849
- 04 R 9978465e4c4d97e4bd396e7a6cfdaadbc26ff05e003f207493dcd43ede9d577b
- root 6b1375abb3c4425e4c842b65bd9867cfcce876bef98a48d4e13576020aeff0a6