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 ₱37.8M contract to PRECIOUS CONSTRUCTIONNational agencies
Transaction hash:
df9a7950ebea7c33d42e70d6f00f96be163e4a70142a4de77fe15879a6e69b50
Status:
Included and unchanged
Block:
#4,425 1,588 blocks after it
Position in block:
Transaction 309 of 366
Award day:
Apr 19, 2021 (5 yrs 6 mo ago)
Value:
₱37,826,337.49
Project:
21D00067
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 #4,425 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 2021 LP", 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 - REGION IV-A awarded it to PRECIOUS CONSTRUCTION on 2021-04-19.Found
- 5. Contract & progressContract / progress report (DPWH) · Sec. 5(d)DPWH contract 21D00067: On-Going, 81.38% 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)No completion certificate published.Not published
- 8. AuditCOA annual audit report · Sec. 5(e)(iii)No COA finding linked to this contract.Not published
2 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 df9a7950eb…e69b50now …
- 2. Block Merkle root changedstored 5766b9a57d…1a6c10now …
- 3. Block #4425 hash changedstored 15f1c9580e…e70e6anow …
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 365 records. Each step hashes the current value together with the sibling shown.
- leaf df9a7950ebea7c33d42e70d6f00f96be163e4a70142a4de77fe15879a6e69b50
- 01 L df45db6bb716999ea9cc6bcaa22ae79dcea5328d4fec5f706043600e8d17fd67
- 02 R 33ecd5f1a0b047bf723c5e6353ff54a9b41a3fff684bbeeb76c988c76facf398
- 03 L 100a5a562e9b8a7c17a677533d5e67866ea26251262690f6beebcc9bfe05f25b
- 04 R ec699763d3d7c2be2dafcd331c5ec12596d3fba504bbae9c3d6e8ba5b0932652
- 05 L c6e2e0ed04ef1fc1e4768f6a1f8079d42c4a872c2393fbc2ade3181fcce0bbac
- 06 L 22d64df4da61892b638f460f7f32857a34aa14899e9823e27c87c624bedff370
- 07 R 356ce9f1afc9617c8be1972a595630bc84ffb39277045c34f12d73198ec256c0
- 08 R 44055a204b37780882596b10e7a7a756ace37f9a6bd537232dd721205a59a2b4
- 09 L 0b462c175c4adb574ff8d2b6f2d522ddd94ff15a036677aa3b6cce7d02cd9182
- root 5766b9a57d2e9d401a75866fa0ef8d232150a06bd02d184042ff9819891a6c10