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 ₱695.9K contract to M.G. VILLAMIN CONSTRUCTIONCities
Transaction hash:
3e93005c22736196bda3c8fbbb39d717453202daedd6d95694702a8f4fdf4e5e
Status:
Included and unchanged
Block:
#2,934 3,079 blocks after it
Position in block:
Transaction 27 of 123
Award day:
Dec 14, 2016 (9 yrs 10 mo ago)
Value:
₱695,945.00
Project:
INFRA 2016 (4th Qtr.-2nd Batch)
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 #2,934 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 M.G. VILLAMIN CONSTRUCTION on 2016-12-14.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 3e93005c22…df4e5enow …
- 2. Block Merkle root changedstored 18ed81e312…a5cb53now …
- 3. Block #2934 hash changedstored 1affe2a361…a689c8now …
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 122 records. Each step hashes the current value together with the sibling shown.
- leaf 3e93005c22736196bda3c8fbbb39d717453202daedd6d95694702a8f4fdf4e5e
- 01 L 3c0e98ba8d0da09daf699fc993571a8cc9a970ff2f2f831f6623385b52136916
- 02 L be5a99789a07515f2903899d9238367072884426b970b11a6d9a72c72f087230
- 03 R 3bd311a4a06e43c16126f3576be33f3d60a9e426b444460496bfc7399684c982
- 04 L dcffc6f8d353819bda6060d3753f9db2a6ba7c1292b3819e60348a5f9f267278
- 05 L 9a8a23c2a7e1e475861590b08caf998e15152ab1b66503dfb6926e3fa5599b20
- 06 R 4abf184e2975ca7cad40c0fe3f01f2d3305191b18b0ffe04dbe2d8fb73842912
- 07 R 7161df887da166cc3a8a56434b328621219f1e93050b9f6c0a2b55e7c11e9d41
- root 18ed81e31238a3a019ce995486dab48a8a2bf3b8ed893aa4049a422396a5cb53