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 ₱4.0M contract to NP PEREZ BUILDERCities
Transaction hash:
83e562b708cb5eb4b0be2c6acaab2c6e98202db4f1727ce99b14ca4ca97a626c
Status:
Included and unchanged
Block:
#5,229 784 blocks after it
Position in block:
Transaction 254 of 499
Award day:
Jul 31, 2023 (3 yrs 3 mo ago)
Value:
₱3,998,046.62
Project:
Infra Projects 2023 (2nd Quarter 2nd Batch)
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 #5,229 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 2023-07-31.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 83e562b708…7a626cnow …
- 2. Block Merkle root changedstored fcddb82452…285086now …
- 3. Block #5229 hash changedstored 527fce2b9e…4470b2now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (9 steps)
How this one record is tied to the block's Merkle root, without needing the other 498 records. Each step hashes the current value together with the sibling shown.
- leaf 83e562b708cb5eb4b0be2c6acaab2c6e98202db4f1727ce99b14ca4ca97a626c
- 01 R 8430fa19f3e4ad631bdc1cf65030636eeea91e1cd40423f6142e9af420e8c17c
- 02 L 6f95a28613ca4b8668373c191093a9afc0e547a29c27e0d555a0dd3738bcfeb6
- 03 L 8d0d0f04c0c3d664c17aa1c1348f2358fef5519aa0cb7ba2b63eb62c8813e484
- 04 L 686ff00147aad4da09944899674f278ee28ef071367093abf72de53f7817ea98
- 05 L a2affca7f365c1d728d838f43484662086102432492fff60c66940dd2ff8a5d3
- 06 L c43b2f0dafdf31935c119e8ee6f6979e85693881b9c36187c697a3d88fbc6665
- 07 L ba2b438f728cc3784e6b795b22b4f523f5b0f4c9103283da456fd9d33b422158
- 08 L cf83657b4038e7417ace512a93fed8c21e8aed92430ad9213808ae4cb3b73249
- 09 R b79c0375b2ae913cd7f5bc9b3bfa7dbebc0c8c32f3609815c7dd82ab83a476bf
- root fcddb8245269e3ac133a04dd5be11a97c0480833a5a122ad9c518cb7f4285086