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 QUEZON Award a ₱30.4M contract to T.J. VELASCO CONSTRUCTION & SUPPLYCities
Transaction hash:
d635ef3be67da0c5d7fffcb2f3e94fd7c381a92ec24ee9b13a29ebbbf99381f9
Status:
Included and unchanged
Block:
#4,443 1,570 blocks after it
Position in block:
Transaction 185 of 233
Award day:
May 7, 2021 (5 yrs 6 mo ago)
From:
Value:
₱30,387,049.43
Project:
21-00022 PROPOSED REHABILITATION (SURFACE IMPROVEM
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 #4,443 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 QUEZON awarded it to T.J. VELASCO CONSTRUCTION & SUPPLY on 2021-05-07.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 Quezon City gave a "unmodified" 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 d635ef3be6…9381f9now …
- 2. Block Merkle root changedstored 98f9e4e628…847de3now …
- 3. Block #4443 hash changedstored a7cb4cc6df…18b66dnow …
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 232 records. Each step hashes the current value together with the sibling shown.
- leaf d635ef3be67da0c5d7fffcb2f3e94fd7c381a92ec24ee9b13a29ebbbf99381f9
- 01 L d62b288e1d40dd5f1f81bd0b6777f7d498fa982269ffc7b3dfc6f6e6b64beecc
- 02 R 6d96b529871199847cea0074cec55ed33c0bb7ff1650e0a956cfd696aa94bdad
- 03 R cf453b4eabb18d2e6a5e280c55f9a010ce11898a3edb64ac1743e3e9da2a243f
- 04 L 5fe24df39c3a68cbf60883fe77c4b286619d084e99a3ed0eb5b1b5c4684b49be
- 05 L 652fdc0804963da0fc0a6ab12f9a302caabcd6496f4dfb8592be0e4c2f1152bc
- 06 L 61685b406c96a1f21931ba04925559e563ca55ee7806df1f24ac6c83d3f05103
- 07 R 61361495c349b923345b69734043be086dae32d601c57c144397682b968f50b4
- 08 L a93118acebe648f7a1178e569045ef88cf23cf9037eb8ed770e24f3cec51448b
- root 98f9e4e628e822285bf3ad5e1ba88801c663d27687dcee63ce70691e94847de3