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 - LAOANG NORTHERN SA Award a ₱24.0M contract to CHRISTFER CONSTRUCTION & SUPPLYNational agencies
Transaction hash:
a3ea69712878ced009d5ec4e50a0ba7e8712b84e2d552b16961b6530c4cd6bb5
Status:
Included and unchanged
Block:
#4,371 1,642 blocks after it
Position in block:
Transaction 189 of 302
Award day:
Feb 23, 2021 (5 yrs 8 mo ago)
Value:
₱24,015,746.96
Project:
20II0071, Concreting of FMR
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)DPWH lists the funding source as "Outside Infra - R.A. 11494 DA FMR 2020". 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 - LAOANG NORTHERN SA awarded it to CHRISTFER CONSTRUCTION & SUPPLY on 2021-02-23.Found
- 5. Contract & progressContract / progress report (DPWH) · Sec. 5(d)DPWH contract 20II0071: 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 2021-06-20). 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 a3ea697128…cd6bb5now …
- 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 a3ea69712878ced009d5ec4e50a0ba7e8712b84e2d552b16961b6530c4cd6bb5
- 01 L a351084b311c50746e7632f1c29a27eaf2efb8543cfb4dd52aa12f53163a6737
- 02 R 3fb5b9659ad1a7d63a2c2fc46c0949ebd934b842a00fc8d3f512875584860e6b
- 03 L 8bd6741a353a6c82daf8e23c5afa9ae55ba4fb14a15b46f395473544c0cb6957
- 04 L 3b1241fb73a9e0ad471915443a6f6fb335cead7d6c3057b184effe3a4539fe22
- 05 L 040f9666fa8c32683dc264f93770af59ea786132a37548352a811d7beb948503
- 06 L 4a00131574d94ce3c35a48d019703fc62b2348fdf964aaa8e9b06f3ae8e7f173
- 07 R 3f9be0007c33144b9ce0a1cf13b77c768b7d2f6cbd93100cd3a2101279b21ec1
- 08 L 9e4686a5628870508ce779ffccb9a2988c7c16bc7c7ba638f03eff63fed5cf99
- 09 R c6791f64ed65ac76781daffdc5253cbf659e041588c3a97b7c121f503bb5c9ac
- root 2a0e270b6dbdfd5f8e3d15092f7e012bb47b05fafd4a74fbb39041cca19c5be1