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 TANAUAN, BATANGAS Award a ₱3.0M contract to NP PEREZ BUILDERCities
Transaction hash:
fa7385a3e3587f819ae1ff86e6acde2a58ee34676f35fd014cf6bf1cb334e195
Status:
Included and unchanged
Block:
#4,985 1,028 blocks after it
Position in block:
Transaction 228 of 236
Award day:
Nov 23, 2022 (3 yrs 11 mo ago)
Value:
₱2,998,051.48
Project:
Infra Projects 2022 (4th Quarter)
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 #4,985 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 TANAUAN, BATANGAS awarded it to NP PEREZ BUILDER on 2022-11-23.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 Tanauan 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 fa7385a3e3…34e195now …
- 2. Block Merkle root changedstored 31b5a37a0d…1c7fc4now …
- 3. Block #4985 hash changedstored 339cc9f470…7b7b2anow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (8 steps)
How this one record is tied to the block's Merkle root, without needing the other 235 records. Each step hashes the current value together with the sibling shown.
- leaf fa7385a3e3587f819ae1ff86e6acde2a58ee34676f35fd014cf6bf1cb334e195
- 01 R fb7ed392d5f3b4b61c9bf9a8db3ed1eb81fa25fd2b818749472b3c999b713353
- 02 R d17cb1e826a4ba5fd48d9c1d7119d2f3038b80225acc765f4a6ca1bbbab3521f
- 03 L f6902a134787ec67da10f8e6d825eefae83ab059453d7efe89e1fe5ea8ab6f1f
- 04 R 2f3998cf481077ba72035283a2301398fac07ae6ccbbc84543084cff83378f3b
- 05 R b1afff9645617833198409c65c56640aa1494848ff6144083625f7171d409560
- 06 L 1423b1b58566b1f61145fb230d205e0a682ee9be09b69bee89ee4b7d2497125a
- 07 L fb92a7d79c435e6173645a5b14fb7762e2090b49925ab978d533a39621ab3b83
- 08 L 7a6ef6567245a8246ec2e9f7dcc65f5ff51a25bce4a30bdee285a7b7785f9d69
- root 31b5a37a0dc5dd440e2760a9965d38c646a0e0a495a8c95f5349e72cb81c7fc4