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 MANDAUE, CEBU Award a ₱5.1M contract to JOHN ARNE CONSTRUCTIONCities
Transaction hash:
1aa5316453032106e2b75dca647e63a06fc359e6dc038225f05aee1a03f55475
Status:
Included and unchanged
Block:
#2,748 3,265 blocks after it
Position in block:
Transaction 12 of 81
Award day:
May 27, 2016 (10 yrs 5 mo ago)
Value:
₱5,149,638.80
Project:
Road Repair along Elias Cortes Street, Pilit, Caba
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 #2,748 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 MANDAUE, CEBU awarded it to JOHN ARNE CONSTRUCTION on 2016-05-27.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 Mandaue 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 1aa5316453…f55475now …
- 2. Block Merkle root changedstored bed1e47157…390823now …
- 3. Block #2748 hash changedstored 9e2bd889b3…e1ae2fnow …
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 80 records. Each step hashes the current value together with the sibling shown.
- leaf 1aa5316453032106e2b75dca647e63a06fc359e6dc038225f05aee1a03f55475
- 01 R 1aa75f349c2fca4755a28525db4b951d31625f017b8a754593752d906f9a7110
- 02 R 62ab95e34109a107e722a7e240947769c36f79ff119a2c06ec02d02aeb4b2cdc
- 03 L 7fa25d58414f27249323f6363d7bf350969327b175b4e9bbf9b93f2948d46789
- 04 L a744feab2baaa6d16ce6789ef86003adb72498ae3bf42d897323d173992ec0c0
- 05 R e690862698abc17c1e30c067ee0ec4e60106e83e02ecab49e2a5ac0a7ba2c46c
- 06 R e4792aba65f46c32c9340de48668c7deba110ac2e4f6b0d75881069bfb990e9e
- 07 R fff8c68ca9fc8d40f4046cdd497975b296f1a5f7c4be7b11ba2d5e0fd8cc4de6
- root bed1e47157e59dd17660ce033ec30161d93d7360ef9f8c308e776af422390823