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 GOVERNMENT OF LUCENA Award a ₱4.0M contract to AM ABDON CONSTRUCTION AND SUPPLIESCities
Transaction hash:
ef2a8aeb8d2522b562a6f5f9b18c64d9d3b4c5a1674622afa26ba673a28b274d
Status:
Included and unchanged
Block:
#4,371 1,642 blocks after it
Position in block:
Transaction 282 of 302
Award day:
Feb 23, 2021 (5 yrs 8 mo ago)
Value:
₱3,995,130.32
Project:
Concreting of Road CAAP
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 #4,371 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 GOVERNMENT OF LUCENA awarded it to AM ABDON CONSTRUCTION AND SUPPLIES on 2021-02-23.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 Lucena 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 ef2a8aeb8d…8b274dnow …
- 2. Block Merkle root changedstored 2a0e270b6d…9c5be1now …
- 3. Block #4371 hash changedstored 2dd1fdfd0f…c03fa4now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (9 steps)
How this one record is tied to the block's Merkle root, without needing the other 301 records. Each step hashes the current value together with the sibling shown.
- leaf ef2a8aeb8d2522b562a6f5f9b18c64d9d3b4c5a1674622afa26ba673a28b274d
- 01 R ef9f4039aaf57e7ccde0b21b659d2b761e7a40e05fb04b78e6b87c5619b119e6
- 02 L d318066fd19aeaa758cf0896016a68ffea779e71d801b3e28924625e2978194f
- 03 R 5a57af5a1f3cfac4b152ade3a8537554181ec4c54edf43051ed0ff6590f2248d
- 04 L a33bb13d239f947c1cb50bfc863d25eaec0b0c9cdff0f35bc59ef1362834ad2f
- 05 L 9e1b15360cd9435ac3cd73ea42808e70242ee9dabd27eb6221d9d3911dca94b2
- 06 R 68f66123a179b33ae00fb7d4a83b20fe56ec18fc1e26890cd8f702d143ab9dd5
- 07 R 252b94cebdc0998aa37b2953b074bbc3783f8b3ac4b6c168253b8bdf4eceea77
- 08 R 1e91d18f23039ed2cf54cc42acbb9fd1bf9ba56d69ebbc32374fd5e08ba2eb0d
- 09 L a6fcfaa5120c18c749333b760f3b29fc8aded969c4705745771e40d5b059df33
- root 2a0e270b6dbdfd5f8e3d15092f7e012bb47b05fafd4a74fbb39041cca19c5be1