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
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO CITY DEO Award a ₱11.7M contract to R.C. MELGAZO BUILDERSNational agencies
Transaction hash:
2108eed42965afdf4a9e2ea717901180feebb71a6aac57c02abac840436b4c1a
Status:
Included and unchanged
Block:
#4,534 1,479 blocks after it
Position in block:
Transaction 29 of 182
Award day:
Aug 10, 2021 (5 yrs 3 mo ago)
Value:
₱11,724,993.32
Project:
21LB0366
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 #4,534 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)DPWH lists the funding source as "Outside Infra - GAA 2021 DA FMR", i.e. the FY2021 GAA. The exact UACS line is not given.Partly
- 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)DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO CITY DEO awarded it to R.C. MELGAZO BUILDERS on 2021-08-10.Found
- 5. Contract & progressContract / progress report (DPWH) · Sec. 5(d)DPWH contract 21LB0366: Completed, 100% physical progress.Found
- 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)DPWH marks the contract "Completed" (end 2021-12-11). The certificate itself is not published.Partly
- 8. AuditCOA annual audit report · Sec. 5(e)(iii)No COA finding linked to this contract.Not published
2 of 8 documents found, 2 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 2108eed429…6b4c1anow …
- 2. Block Merkle root changedstored 48af50c9d8…3a6357now …
- 3. Block #4534 hash changedstored bf48efeff7…592ab1now …
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 181 records. Each step hashes the current value together with the sibling shown.
- leaf 2108eed42965afdf4a9e2ea717901180feebb71a6aac57c02abac840436b4c1a
- 01 L 1fcace9b927284c51b192a5452c3e0509298755e6cc3560f2c25b41a3c3a35a2
- 02 R d8b53339ab3f3128083d8077e4ac9541c325ae2629409fe28d49057a93da4be8
- 03 L 403022301bf14223567a09f348debe2e20e77a663c1be09d4c2bbe00648bfd68
- 04 L 95525593a27d8bcaf26e1641c816465407340a0b5215be2fe13ee0f9d4c121ac
- 05 L c7ebf9118fb01d0997b04e3f0158ec6ef305c46676c6101aa256ebc85d232883
- 06 R cc76824575f8bdbe72ce3aeed574ffa717fe654e06ec9e9d0374fd988e34d36f
- 07 R f627b09312121ca8769f2d06c7da4ec3143c2bf28ec0135b2912a7f6bc0bc68e
- 08 R 05603e0cbd677d4197bb6a44a21496d3c345232f027feb08f0406d53e2e0598a
- root 48af50c9d8dc64ebd31c50d1c7f79a8b9f2f1c32561af89ea71374e2243a6357