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 TUBAO, LA UNION Award a ₱486.6K contract to ARM ASIA CONSTRUCTION & ENGINEERINGMunicipalities
Transaction hash:
47a413fd3d60f1951e8eb04272a133ec8a1165244411463778be9c05f4b3c2c3
Status:
Included and unchanged
Block:
#1,564 4,449 blocks after it
Position in block:
Transaction 26 of 73
Award day:
Sep 19, 2012 (14 yrs 1 mo ago)
Value:
₱486,604.97
Project:
FARM TO MARKET ROAD
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 #1,564 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 TUBAO, LA UNION awarded it to ARM ASIA CONSTRUCTION & ENGINEERING on 2012-09-19.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 Tubao 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 47a413fd3d…b3c2c3now …
- 2. Block Merkle root changedstored a1e07d5a3a…2d1879now …
- 3. Block #1564 hash changedstored 699360a068…e29752now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (7 steps)
How this one record is tied to the block's Merkle root, without needing the other 72 records. Each step hashes the current value together with the sibling shown.
- leaf 47a413fd3d60f1951e8eb04272a133ec8a1165244411463778be9c05f4b3c2c3
- 01 R 4b4585e2056855a1cbc8ee51aa4a0ee3d94f37eeb918c7126b8c58d57260b356
- 02 L 674c164e5df42965d72c864e7933a2b210e88ef3cad0d9287e60f364b4c79759
- 03 R 4be1e4ca3443452f6493fa4fb64267506e7bc6403cd1171cedf82e608ca2d236
- 04 L f59f8c5eef4ae7689f51cae9985c2b26806a3f021b12977bd9cbf23c67a1409d
- 05 L f10f7b034fb2ef05ed1d90e32f00a333b13ed3675b08cfed16e22949e57fdcc2
- 06 R 8c9b696adda60fd358a1e3fd591d1bbd0e2c972d502915863f04611562c1f283
- 07 R e44846cf5847abbcbf5ead1bcbcb027b80f9f777fc43b4ab7c7d637ebdd0d87f
- root a1e07d5a3aa49e73ca002b5fb58768912892978b9c4f2f1f6f500186f32d1879