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 TANZA, CAVITE Award a ₱2.0M contract to TTAI GENERAL CONSTRUCTIONMunicipalities
Transaction hash:
fb9123cc74fbd0fe311d243b8f0a88d47f5787f04d7a21eed63eb7786b4d958e
Status:
Included and unchanged
Block:
#4,398 1,615 blocks after it
Position in block:
Transaction 298 of 302
Award day:
Mar 23, 2021 (5 yrs 7 mo ago)
Value:
₱1,995,176.72
Project:
Construction Project
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 #4,398 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 TANZA, CAVITE awarded it to TTAI GENERAL CONSTRUCTION on 2021-03-23.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 Tanza 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 fb9123cc74…4d958enow …
- 2. Block Merkle root changedstored 385a9af342…1e1a17now …
- 3. Block #4398 hash changedstored 87938c6a3d…5a36c7now …
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 301 records. Each step hashes the current value together with the sibling shown.
- leaf fb9123cc74fbd0fe311d243b8f0a88d47f5787f04d7a21eed63eb7786b4d958e
- 01 R ff3ce8673e5daacffdbdf0152d8ac03abcc0f93f044ff53ed1556225cccc787c
- 02 L 44e850ba9ca7b75bd2b0e9d2eb5ffb3dde9e7f0b544fa87ef831041416ca4f02
- 03 R 98dcbfbfdd1fa2098d63b37e38ca5db0d3c76045d17549e657f9565da2fe72aa
- 04 L 493d9218c1c70ed9fd7b086b96966f7013b7d058fad216c30dec6b7636fbf910
- 05 R a312a03fd5f820e96b1c2dce928a4723723d7a3847503b28fbe0faafd65ebcc0
- 06 L b7b9c0d54bb6e6c7cb0bfdc21f377a1dbb01c5a44ebe2bf382fe444b2cf8710d
- 07 R ed282c4bff4743ea64640a720693f525465e9405380616e6bcf8fa975329502c
- 08 R 50502ee5031ce551b9e59544fcf76ac79787246cc99d902fa32cd33ed904d3c3
- 09 L 4ad77633d5a17175ccf546a5935cbda2ed6ce808abfd1db07748eca1e72a4956
- root 385a9af34211ccdc1deb2ab2647308770ae7557e0110e6cf8bc28d1b391e1a17