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
PROVINCE OF NUEVA VIZCAYA Award a ₱278.4K contract to BIG G BUILDERSProvinces
Transaction hash:
643b421e3d8acba2a1e615ef092e2c78e679ae455bf845fa6637140b2c416509
Status:
Included and unchanged
Block:
#2,434 3,579 blocks after it
Position in block:
Transaction 47 of 115
Award day:
Jun 16, 2015 (11 yrs 4 mo ago)
Value:
₱278,357.94
Project:
2nd Invitation to Bid for COMPLETION OF CAFETERIA
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 #2,434 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)PROVINCE OF NUEVA VIZCAYA awarded it to BIG G BUILDERS on 2015-06-16.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 Nueva Vizcaya 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 643b421e3d…416509now …
- 2. Block Merkle root changedstored 8dfa524eaa…95b913now …
- 3. Block #2434 hash changedstored dc5ffe4415…8398f4now …
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 114 records. Each step hashes the current value together with the sibling shown.
- leaf 643b421e3d8acba2a1e615ef092e2c78e679ae455bf845fa6637140b2c416509
- 01 L 642ca840b166ff6d72f8a4142dd5f265ff2680cdfdbccff93cd8d3768b3a5e99
- 02 L 5369803a6bfff3f02b53e15561da8b2e643be6fa974b87f249192398fae82a4f
- 03 L f517aba4469ca3badce40d4f3a55fd79eb0536b4bb77c81d81018b39878e12b5
- 04 L 265073353119411228a001e8aed9606f7da22456a444e641d0221cdae320816d
- 05 R ea3b4995fe6ae30cbdcc4581843352eba6462226c8e0814895c30a96309743d9
- 06 L 0ee82b75028821f2db4394291d121398deaae57dc6ce154e25fc42302e095415
- 07 R a2a99c4b3757b26f4c13487ef152d0853684161ea12ac3c7cffa7501ad58c1bd
- root 8dfa524eaa7b422c454de0147dc5c8cf385ce4d5e8016a616c5af7fbe195b913