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
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - QUEZON CITY 1ST ED Award a ₱21.9M contract to TAPNIO AND TAN CONSTRUCTION AND DEVELOPMENT CORP.National agencies
Transaction hash:
4fe412e1b5d919cb63fa524e63b268c30895be42e7b7b760c17c2ba8f1f436e6
Status:
Included and unchanged
Block:
#4,190 1,823 blocks after it
Position in block:
Transaction 56 of 175
Award day:
Aug 12, 2020 (6 yrs 3 mo ago)
Value:
₱21,939,377.30
Project:
20OF0144 Construction of four (4) storey eight (8)
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 #4,190 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)DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - QUEZON CITY 1ST ED awarded it to TAPNIO AND TAN CONSTRUCTION AND DEVELOPMENT CORP. on 2020-08-12.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)No COA finding linked to this contract.Not published
1 of 8 documents found, 0 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 4fe412e1b5…f436e6now …
- 2. Block Merkle root changedstored b4b48319eb…1f4fdfnow …
- 3. Block #4190 hash changedstored 87fb28dfdc…3c4bc0now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (8 steps)
How this one record is tied to the block's Merkle root, without needing the other 174 records. Each step hashes the current value together with the sibling shown.
- leaf 4fe412e1b5d919cb63fa524e63b268c30895be42e7b7b760c17c2ba8f1f436e6
- 01 R 50be3dd4d6b518ee9d2b562f8d8d53cce3653059191e0953984aca7a177de552
- 02 R 8f88268cf254a1cbcacdad0fc7c7e86ec844f94a37ea0f9c2af7c63ee45003d3
- 03 R e30ae4288a3120137a862c449730de4872bb0734706522589b56f7c7fbd91eb7
- 04 L 1af5d9df72966eb153d0add5baf26a11272cd7ff2b7f0e45711123518ea183ca
- 05 L a3406830ca8ecca1897bfab77d393b2298ad03fb0d4157cee3e737a0cde344b3
- 06 L 96aabd1c5a38fea285dbdc823c078cd05accd3f47daa72d14941877e48728e3e
- 07 R 775a273afbd2db2909944c4f87e429caab4af52ffcfe17b57e3ecd7f151081c2
- 08 R 8d1b72b5447f8ff882f3989fc42e8f910d0965d37045a880cc5d938974ad7669
- root b4b48319ebc0d611a1627e52c45c934af14bf73a1d39ac222264e278ac1f4fdf