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 OF NAGA, CAMARINES SUR Award a ₱199.9K contract to JAN-SHA CONSTRUCTION & SUPPLYCities
Transaction hash:
d2c6ed74be2c35376eec331d85ab687c519d0c98d46c159f750bfa5d73e5c538
Status:
Included and unchanged
Block:
#5,864 149 blocks after it
Position in block:
Transaction 231 of 276
Award day:
May 29, 2025 (1 yr 5 mo ago)
Value:
₱199,900.00
Project:
Construction Projects
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 #5,864 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 OF NAGA, CAMARINES SUR awarded it to JAN-SHA CONSTRUCTION & SUPPLY on 2025-05-29.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 Naga gave a "qualified" 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 d2c6ed74be…e5c538now …
- 2. Block Merkle root changedstored 198451f8a3…17bc8bnow …
- 3. Block #5864 hash changedstored 4ab7071dfd…b0321anow …
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 275 records. Each step hashes the current value together with the sibling shown.
- leaf d2c6ed74be2c35376eec331d85ab687c519d0c98d46c159f750bfa5d73e5c538
- 01 L d2994b5e6cf59ad1523636046db6f7d048e2a8483baeca142c148fb026d5748a
- 02 L 69b742d9a6e50f5b89ca6ebbabf2b2c94115f3742d03faa8198747ab846f1392
- 03 L f8029386487d50b1fd8052a74c989f1bab63bdf58be4570638073b0615b75502
- 04 R 0d6cb1b92724c8084508b14e7afe56c53dcf26e9410dd45315db009dc224c517
- 05 R 04212e690d056b726a57e56fbeed4e95d5ed5901524c7f8d6d611c84cb7c4552
- 06 L 2c8f6c710e04ab4c55f588a36b07fd9aa1d6fc9bcc6a3c585c2ab7ebec7b57d7
- 07 L 5eb67bc39688cd898e4df380fb4384208952e5f763e620e98eeeaeb19c1f87e6
- 08 L 21fb1feaec37b9802f1e4c38bfd3a3d932481d91e30dd74f7acb7751db2cb376
- 09 R 5aa681c9d16dfebb7a676386d927f7bd360230157427153396af7abb0d728800
- root 198451f8a347188acaf47303e1b6133e7f69a0aa629434b50a117048d617bc8b