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 URDANETA, PANGASINAN Award a ₱286.0K contract to T.J. VELASCO CONSTRUCTION & SUPPLYCities
Transaction hash:
8de7bacc0e5bbc2bbd22d20077f4c8be4ca8e4891b2a3fe12c6b3362731d4700
Status:
Included and unchanged
Block:
#80 5,933 blocks after it
Position in block:
Transaction 4 of 8
Award day:
Mar 22, 2007 (19 yrs 7 mo ago)
Value:
₱286,045.12
Project:
Concreting of Farm To Market 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 #80 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 URDANETA, PANGASINAN awarded it to T.J. VELASCO CONSTRUCTION & SUPPLY on 2007-03-22.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 Urdaneta 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 8de7bacc0e…1d4700now …
- 2. Block Merkle root changedstored 8bd3d4efcc…63f974now …
- 3. Block #80 hash changedstored 3aab3c7101…8d5ee6now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (3 steps)
How this one record is tied to the block's Merkle root, without needing the other 7 records. Each step hashes the current value together with the sibling shown.
- leaf 8de7bacc0e5bbc2bbd22d20077f4c8be4ca8e4891b2a3fe12c6b3362731d4700
- 01 R 90852ff5ccc8e9652d6ebfce43e051b4862df18fc09e58a3756fa55537412b73
- 02 R bbb9701e04f6afe2c30a0a88c24c32852efc9cc636d2faa4067ae701c2fc9174
- 03 L f7aaa8e82f093fa29754490d53d3ada0ab031088c8616611bb05baaf094ecf78
- root 8bd3d4efcc23f358f555b7b2796e4773204efd3d914981b8d1030278c863f974