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 - REGION IV-A Award a ₱124.0M contract to PRECIOUS CONSTRUCTIONNational agencies
Transaction hash:
dc4e7bdbaa512c949b69efe5ef765bba81f1c6bfcf4d85c5da0e266e40f95402
Status:
Included and unchanged
Block:
#4,020 1,993 blocks after it
Position in block:
Transaction 329 of 383
Award day:
Feb 10, 2020 (6 yrs 9 mo ago)
Value:
₱124,009,762.65
Project:
20D00010-CONSTRUCTION OF 2ID PERIMETER FENCE AND
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 #4,020 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 "Regular Infra - GAA 2020 CSSP", i.e. the FY2020 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 - REGION IV-A awarded it to PRECIOUS CONSTRUCTION on 2020-02-10.Found
- 5. Contract & progressContract / progress report (DPWH) · Sec. 5(d)DPWH contract 20D00010: 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 2021-10-20). 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 dc4e7bdbaa…f95402now …
- 2. Block Merkle root changedstored 79aa5e5e52…b0b931now …
- 3. Block #4020 hash changedstored c4554eda14…0c8aebnow …
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 382 records. Each step hashes the current value together with the sibling shown.
- leaf dc4e7bdbaa512c949b69efe5ef765bba81f1c6bfcf4d85c5da0e266e40f95402
- 01 L db36c3b008346382baae12b1eb5129efcab7d4d5d954fd56aa3995cf4ddbc7a4
- 02 R c40ed44a0d50dac4433f62e5d87fea440f6c99b8078b5e22dd8b04a7813a7c8d
- 03 R 709df0b49bcc4e298e97316c621dbfc3dfa83b8eceff635377450520e410b59f
- 04 L 48da0cfe6c17634b9a47a7ef225b285bad7f804a9aee89c90c8296363ef4d33d
- 05 R 8e15ea9e2700ce925e26079145930bbec35feaad969669c4c4afb540c2704ed9
- 06 R 3ad6970b8ff5d8a2ba53598c3598b98196efb163654561aec5057be0d232446f
- 07 L 788be897d8e727b5077c9ed410c0151a015d064cb082982367aeee80c9a8de76
- 08 R 2aec759f9f18a745266cc10cf5fa698f06746315400cfc5caf9c46d5e3234137
- 09 L 299611f320b295679c0a673406509f72d52c60a2dfb4cdd3c3b58cfb98ae28a4
- root 79aa5e5e522d7f364c5405de45963e5dd980c4c90abffaf393216ad279b0b931