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 MAKATI Award a ₱3.3M contract to PERSAN CONSTRUCTION, INC.Cities
Transaction hash:
87bf9acdf462d894d2a34aa3b19152374e3a2d52c0d4eb1fd245f58d3a706295
Status:
Included and unchanged
Block:
#3,987 2,026 blocks after it
Position in block:
Transaction 129 of 255
Award day:
Jan 6, 2020 (6 yrs 10 mo ago)
From:
Value:
₱3,269,474.00
Project:
PROPOSED STREETLIGHTING ALONG BEGONIA AND A. BONIF
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 #3,987 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 MAKATI awarded it to PERSAN CONSTRUCTION, INC. on 2020-01-06.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 City of Makati 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 87bf9acdf4…706295now …
- 2. Block Merkle root changedstored 040a2b2900…1facf1now …
- 3. Block #3987 hash changedstored 89f05f69af…c4b9fdnow …
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 254 records. Each step hashes the current value together with the sibling shown.
- leaf 87bf9acdf462d894d2a34aa3b19152374e3a2d52c0d4eb1fd245f58d3a706295
- 01 L 86de677591b4192eea6030e54a1d7d57f77bc6140faad3c378b03b54a6f39825
- 02 R 113fbab01e95eb1f37c6c5b0676a494a32d7931c79cdee9556312a24ee8c13a7
- 03 R 82664aacef83b7b5f0fbd4847646cb5a1cdc93422d2baf04ba8f169a243f5d48
- 04 R 87383a5b62f9ee2706826d7272404a4a261d2aa20011f7bb22a67237a78b5d48
- 05 R 6441de98b763de7b67cc9fd9452aa987159fd66a97152436d57e87e94aeb028a
- 06 R d664f05296681464e019881f26d02e0351879feba12082be9edc4e0c59959044
- 07 R f96fd901a821ec140e8e2c5761fee598dac12a1fe7ec2a28dcb800bc944db89a
- 08 L 6cbbb82b9a870308c87a5f5c3d350af4be64013d9264792a752250bac90ef34b
- root 040a2b2900bed3dc95514bbc1f8c0117e50f13e41bdab3df81a955707a1facf1