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 TAYABAS, QUEZON Award a ₱1.7M contract to L.A. CLAMOR CONSTRUCTIONCities
Transaction hash:
aa0c3b6db4e9ee0baab33d7bb8ce7d1d23eaf0f6769749909f0c6dd1d36bed4f
Status:
Included and unchanged
Block:
#1,124 4,889 blocks after it
Position in block:
Transaction 16 of 24
Award day:
Apr 19, 2011 (15 yrs 6 mo ago)
Value:
₱1,722,608.88
Project:
PROJECT NO. 010 – Construction of Reinforced Concrete Footbridge of Brgy. Kan. Katigan
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 #1,124 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 TAYABAS, QUEZON awarded it to L.A. CLAMOR CONSTRUCTION on 2011-04-19.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 Tayabas 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 aa0c3b6db4…6bed4fnow …
- 2. Block Merkle root changedstored 18c99ff758…0dcd69now …
- 3. Block #1124 hash changedstored 89afe0a177…c4321fnow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (5 steps)
How this one record is tied to the block's Merkle root, without needing the other 23 records. Each step hashes the current value together with the sibling shown.
- leaf aa0c3b6db4e9ee0baab33d7bb8ce7d1d23eaf0f6769749909f0c6dd1d36bed4f
- 01 R ace35e3f57d4a0114d26dc674cc004f726ec6dca924cd975ad0d4250ab7c1225
- 02 R fd1cb7f13321e0c47cf2bedcc8d6782db4679c7988512225e4b055105fe45187
- 03 R 8049e220b99345b428b6d3b71b0972c1b9ba06e7fffb458e64786b400deed0ad
- 04 R be7585e40ba7f4ee86604ea910e1ab9ea70aaa0913605f674cc6be1696fac363
- 05 L f27bdf37389aabd6e3174080b660898d29e1dc814f8165daf2739f6997cba0b1
- root 18c99ff758bd78269a27a70d5ceab586fa344540f8792a65961a4cd98e0dcd69