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 ₱2.0M contract to ARM ASIA CONSTRUCTION & ENGINEERINGMunicipalities
Transaction hash:
172f447ff1663ed5a9cd590d05dad6f08ce49bd9c78fca728806ce16724cbaa1
Status:
Included and unchanged
Block:
#5,898 115 blocks after it
Position in block:
Transaction 45 of 592
Award day:
Jul 3, 2025 (1 yr 4 mo ago)
Value:
₱1,987,756.49
Project:
Building Construction
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 #5,898 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 ARM ASIA CONSTRUCTION & ENGINEERING on 2025-07-03.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 172f447ff1…4cbaa1now …
- 2. Block Merkle root changedstored 9b945f3ba9…762b4dnow …
- 3. Block #5898 hash changedstored 2acaed3e44…9dc3c8now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (10 steps)
How this one record is tied to the block's Merkle root, without needing the other 591 records. Each step hashes the current value together with the sibling shown.
- leaf 172f447ff1663ed5a9cd590d05dad6f08ce49bd9c78fca728806ce16724cbaa1
- 01 L 1713254099caba80c8132feeb5670b6fe69374895be6af54297d8d7a7d0fd589
- 02 R a390f161718447ffdffe97cb3c2c883f82c38bf1ea8c1f5506d83f332d2c8630
- 03 L 26132b05e3603676f8987b88de7153d4d0e125f097f91f77b03ecbde98ef2457
- 04 L 65283713a064f9d084bf9ebd1fbde060653b4376dcd43ba568a079b5fdf50b23
- 05 R eb40f74bbde5cc3b64313606f8061868b43a35c8d228ff486b59205889bc301d
- 06 L c953d4887232e2e432000a19d5306b95acea9d80b4b460ea1c8733afc5c85eba
- 07 R c862b1d6f767e1e09587e0d245d07c0e3ea6886d6d7d927579e5d0daee9f4b7f
- 08 R 3e5f280fb4ebba7921b8ba1ef49dd1c69f6e8fcd85eb34ae6b8e5e49403df2af
- 09 R a6f1bebfc19419da38ad8a3ea644e81f1f6d159311b00c658eae6ad0d42ff092
- 10 R eec64a5f61288cbdd43553a8ead3b8a78bc0f00dfdf89c0a0d768cbf5052dde1
- root 9b945f3ba909fb0f6b7b7e2b264c302f7dcc4a5d8c2df000bbad00b22e762b4d