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
MUNICIPALITY OF SAN JUAN, LA UNION Award a ₱2.7M contract to J.A. OLIVAR ENG'G DESIGN, CONSTRUCTION AND SUPPLIESMunicipalities
Transaction hash:
2933ed2c03fd1a4e5d9963ab2681ee56215957e5a342c2e54e7495bb1e0b8b10
Status:
Included and unchanged
Block:
#5,205 808 blocks after it
Position in block:
Transaction 35 of 258
Award day:
Jul 6, 2023 (3 yrs 4 mo ago)
Value:
₱2,697,273.10
Project:
Slope Protection
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 #5,205 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)MUNICIPALITY OF SAN JUAN, LA UNION awarded it to J.A. OLIVAR ENG'G DESIGN, CONSTRUCTION AND SUPPLIES on 2023-07-06.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 San Juan 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 2933ed2c03…0b8b10now …
- 2. Block Merkle root changedstored 000e91064b…ab4601now …
- 3. Block #5205 hash changedstored bb03357da2…f886ffnow …
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 257 records. Each step hashes the current value together with the sibling shown.
- leaf 2933ed2c03fd1a4e5d9963ab2681ee56215957e5a342c2e54e7495bb1e0b8b10
- 01 L 2912bc0e85a72b6380fcfc06df1745c2b73c2fc2f9396dccad0302602d2a1bff
- 02 L 6dfb6fc52369d59670e18223ee1403132b8f962936b5697382e8da36ccc2605f
- 03 R a8ef59991b23fcd90d931758df668edd23210c6be84958161e7d08cb369ca67f
- 04 R 2086cead93c23e128b28ae79b0d8c7b31861639f5cc7547284ea231f89d2472a
- 05 R 70807113e79e90c65184e6f3ec19291d7b54582e17cc871c18e65f06f6d78bdf
- 06 L 5e53a3ece3d8f535beb9c4aea81545da5e1e0ef93fdae5622b923f87d570fadf
- 07 R fc241affd55e52fbb26ad79526e5aff21dffad713ba4b4b84541aab35416ce2b
- 08 R ac4134d71ba76e12d399f4c155b916b4a632209d70b33248e70796fe3670f2aa
- 09 R 0d1a348bf81495ad29116c1c0556226f240f0308b737e5cf72664028d2b86c11
- root 000e91064b5968ae98742a736f70eff2d223a57e27af325811d274b15aab4601