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 OLONGAPO, ZAMBALES Award a ₱2.2M contract to C.B. TAMPENGCO CONSTRUCTION & SUPPLYCities
Transaction hash:
86d5824bbcf7ff3c950d498d700e281e3798d5978a7a4c24ae46a8804921ae03
Status:
Included and unchanged
Block:
#3,667 2,346 blocks after it
Position in block:
Transaction 53 of 110
Award day:
Feb 1, 2019 (7 yrs 9 mo ago)
Value:
₱2,199,654.73
Project:
Concreting of Abille St. (1st St. to Rizal Avenue
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 #3,667 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 OLONGAPO, ZAMBALES awarded it to C.B. TAMPENGCO CONSTRUCTION & SUPPLY on 2019-02-01.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 Olongapo 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 86d5824bbc…21ae03now …
- 2. Block Merkle root changedstored a5e52e49e9…769d8enow …
- 3. Block #3667 hash changedstored e7e32491e2…8d75e0now …
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 109 records. Each step hashes the current value together with the sibling shown.
- leaf 86d5824bbcf7ff3c950d498d700e281e3798d5978a7a4c24ae46a8804921ae03
- 01 L 85caf051860c4ffca555f6b934ea9379c32f8202d2834e5ad3e10dab2a060c98
- 02 R 25e43f338161a2ff5901ceb41921c6d6d7ec997d006e2721003d3f24ab20c4a9
- 03 L 81ebb2eb3d37684c94ac042bb07ab877617b4da924aeab59da3542d15a4ec89a
- 04 R 1b3afb4f26daaf55e5accf01bd9ed9489543901316613cd3c6bc1bc3c0f326c4
- 05 L 588b1aa234b81827f62b2371c28d73a56bb1cec9faceda63dcb0926107876beb
- 06 L ea25ae760a9f4577699100ae4c6e50844445bca6a4b7a8369bda94b347a633bd
- 07 R fb2a49976e74aa6506cbc5aeda7b60c4add9166e1266146beb4aafb3566f5111
- root a5e52e49e938cc5710c7213923244dfa623f0e6e330f799ff7c2b0d483769d8e