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 ₱2.4M contract to TMR CONSTRUCTION OPCCities
Transaction hash:
b1dbacb3df95a37b68614bd43d5c544e83e0f9d30adcbc13117b8b5f176b8e85
Status:
Included and unchanged
Block:
#4,712 1,301 blocks after it
Position in block:
Transaction 477 of 686
Award day:
Feb 7, 2022 (4 yrs 9 mo ago)
From:
Value:
₱2,398,380.82
Project:
21-00216 PROPOSED REHABILITATION OF STEEL BRIDGE A
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 #4,712 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 TMR CONSTRUCTION OPC on 2022-02-07.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 b1dbacb3df…6b8e85now …
- 2. Block Merkle root changedstored 25545dc17a…47fb08now …
- 3. Block #4712 hash changedstored f9dc3fcdfe…1ee3d5now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (10 steps)
How this one record is tied to the block's Merkle root, without needing the other 685 records. Each step hashes the current value together with the sibling shown.
- leaf b1dbacb3df95a37b68614bd43d5c544e83e0f9d30adcbc13117b8b5f176b8e85
- 01 L b1d794e0494f9560717605958ed8c0bb216fecf34be28ae661bc8e6a3751da16
- 02 R f9f0f9bb61216e20f4d876fc7614c4cb5e41ceac1d3fcb03c167dfb13cc934c8
- 03 L f205b5f9e0ba113737df06700e8fbef053c2ab2d19e5149d1f828a2c06f95cf0
- 04 L 8f81f272944f13be4c8bb5d64b5d25038edd43fb66ba1d77c25ddabc58c3b0e1
- 05 L 9f48b4e5352636f17b171ddd40d6c89dc66003def4d2372c0f12277db9ae1085
- 06 R 339f04c1040f7b5b218f02a0010dfeb2551746c4ff7a60ad8a28fc8208e499ab
- 07 L 69925fc32bec2fe96a9008546f17e4061835e2b3222b59c1a48e2b74d673faa6
- 08 L 4899e4742b62ebdea3edda3e275d874d558b271d3f98d13f54ae393bb9860381
- 09 L 531b538ba8cb0bb89ef1dcb3331f3f5cb1f4e32f91d1262d5892ffc3cc8b2f3b
- 10 R b4cc7670ecd79780d4c2a38852a7e204c2fc428e3b87dc1e1dc46a5a4e316372
- root 25545dc17a5e403207ff7ac055bc0578a33eb311bc3e2bcf4449df18d047fb08