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 ₱16.7M contract to PERSAN CONSTRUCTION, INC.Cities
Transaction hash:
6038550ecf4e9cc37f322cf347cfa5a458f02186914d6e547e580e03c5686d5e
Status:
Included and unchanged
Block:
#1,395 4,618 blocks after it
Position in block:
Transaction 41 of 119
Award day:
Mar 6, 2012 (14 yrs 8 mo ago)
From:
Value:
₱16,669,192.06
Project:
415617
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 #1,395 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 PERSAN CONSTRUCTION, INC. on 2012-03-06.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 6038550ecf…686d5enow …
- 2. Block Merkle root changedstored 4095c179f0…2d9c01now …
- 3. Block #1395 hash changedstored 8e2bf8f296…33d55cnow …
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 118 records. Each step hashes the current value together with the sibling shown.
- leaf 6038550ecf4e9cc37f322cf347cfa5a458f02186914d6e547e580e03c5686d5e
- 01 L 5f462e3344ad35f81645d0ee2fc3d1acb4999558690ea8ff12ae1826c6e1bda4
- 02 R e3dc3bd6709f540737936782dd34d3488d92b98d4352849c102cbf9275a21c9f
- 03 R 2e8a2a2984be92a4ce2d2d7d3e7da3a239e96ea17db3dcd679ef7d3d7357eb93
- 04 L a825977e2896d50a179696f7bfcf74cf9c97cd0e30e813eccf9a6b7b9935d78a
- 05 R 79b2ef2b201e04e18ab9eae6fcef7959dede4510f51b38a0fd50caa492fb28b8
- 06 L c1564228fbbf43eb37ca8ba98cc22e6de9a33625888799740b7fc9426ed49482
- 07 R 31f5185a210bee91734051e6751d8c708df13ccba94c0b4b316088c55ff86e3f
- root 4095c179f0fb54e25e3fb2efe3a85f6525f9f65fbcb7a14e6818a4591d2d9c01