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 ₱795.1K contract to NP PEREZ BUILDERCities
Transaction hash:
8a6dba1788720e97ee4570c28e19ef46a4616fa53d9f630658d61225297b7d4e
Status:
Included and unchanged
Block:
#2,174 3,839 blocks after it
Position in block:
Transaction 56 of 113
Award day:
Sep 5, 2014 (12 yrs 2 mo ago)
Value:
₱795,116.80
Project:
Construction Projects
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 #2,174 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 NP PEREZ BUILDER on 2014-09-05.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 8a6dba1788…7b7d4enow …
- 2. Block Merkle root changedstored 08d5857c08…4acee0now …
- 3. Block #2174 hash changedstored f543d9fe7a…1ad715now …
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 112 records. Each step hashes the current value together with the sibling shown.
- leaf 8a6dba1788720e97ee4570c28e19ef46a4616fa53d9f630658d61225297b7d4e
- 01 R 8a99a92bbc4fb395eb0988f2b71ac5a4856cff16899d91928d3489d8d36ca0d5
- 02 R a0dc464c634b34eb5937fa04b85feead27c53edfaba9c9ac658dc6d317ea3576
- 03 R 87df09259cf96ad0a86ddcb5f54660cef1821a2a53ddab9d400d97ac5d517557
- 04 L e1aa8456fb15dfb132e4f5e8d9da5166e0e5eab8c1b968046f5653a4f687501c
- 05 L 6f0cd528fe62962146553a8b3e1bfb1f2c35f1915e20bf25fda84583fa28b231
- 06 L 133be5cf471fbfda1243fc1f7a610250b71d44535f957caff66f988fb0a862e6
- 07 R 94fae0b39fcc24fbe0674d95c55e80af45745e8f121573d9c3f8efd5b0e3dfb7
- root 08d5857c085364bd7820dc432150845f49172db70de08c5bcb32aea3194acee0