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
MUNICIPALITY OF SAMAL, BATAAN Award a ₱485.5K contract to E.R. VENZON CONSTRUCTIONMunicipalities
Transaction hash:
da7b14c8448a8aee01fc73f7d1fa51b3776ad7bbae6ccfa87e6691460702d9a4
Status:
Included and unchanged
Block:
#1,859 4,154 blocks after it
Position in block:
Transaction 98 of 117
Award day:
Sep 11, 2013 (13 yrs 2 mo ago)
Value:
₱485,498.13
Project:
Upgrading of Barangay Road
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 #1,859 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)MUNICIPALITY OF SAMAL, BATAAN awarded it to E.R. VENZON CONSTRUCTION on 2013-09-11.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 Samal 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 da7b14c844…02d9a4now …
- 2. Block Merkle root changedstored cb58a1c97e…293dfcnow …
- 3. Block #1859 hash changedstored 3968c5c6d3…65b686now …
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 116 records. Each step hashes the current value together with the sibling shown.
- leaf da7b14c8448a8aee01fc73f7d1fa51b3776ad7bbae6ccfa87e6691460702d9a4
- 01 R dcd6cdaba79efb89e51687c092c84d5171bf347cbf17151064ef93aaccff6413
- 02 L 9cac3c7ac913f75912ffcaa8d65518d9b956ff5a8ee704b8997b3233a99b6f81
- 03 R 5f1c050139ef7428af777be26929d55536cb7a15128d6640e0d3865fb3b413dd
- 04 R d11cfb6138bc6f832935463ac62fe2c482e3c504dc93cf43b0a1ae2d124eb48f
- 05 R e7f122c4869f0c814b138daaee79af0ce997c148356b421ba010c2f422f30cfe
- 06 L 6c2afa3817673ad81c51a8fb9bfe5c63e336c543ea1eb903f794e345805861d9
- 07 L 44d4b5bf71626756eed3c345b28228f9d8d4275b3e0148f2db37e8af8a6f7343
- root cb58a1c97eaf57832be509e94586a46fa5674996dab5bdb5b5c35e26f0293dfc