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 CALAMBA, LAGUNA Award a ₱1.2M contract to JAMES CONSTRUCTIONCities
Transaction hash:
d408cc2e55ae4bfbae693f227c9f64b76e5a6ff6bffa69f103182f6c17290144
Status:
Included and unchanged
Block:
#1,163 4,850 blocks after it
Position in block:
Transaction 32 of 37
Award day:
Jun 9, 2011 (15 yrs 5 mo ago)
Value:
₱1,200,119.40
Project:
I-2011-001 Improvement of Calamba City College, Barangay No. 7
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 #1,163 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 CALAMBA, LAGUNA awarded it to JAMES CONSTRUCTION on 2011-06-09.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 Calamba 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 d408cc2e55…290144now …
- 2. Block Merkle root changedstored 393734f8e6…7156b8now …
- 3. Block #1163 hash changedstored ef3c5f2dd2…f7edabnow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (6 steps)
How this one record is tied to the block's Merkle root, without needing the other 36 records. Each step hashes the current value together with the sibling shown.
- leaf d408cc2e55ae4bfbae693f227c9f64b76e5a6ff6bffa69f103182f6c17290144
- 01 R dcbdc9dc7970a074f8d914a50493012671f46ca7a70d55b948300c94692a1e79
- 02 R 6d5e27447e8005b8e5877c59471ceb8dc790af0b1dc3a97bc098fb244fed9700
- 03 R 9e449a9f31ecc4d1720bda727e066c4028baee1ebe5a81e1fb03c2053d3a552f
- 04 R 6ad8d2bcd919d4296dcf08d62a22e5310d8c8183c375a94c740b9c2448789a12
- 05 R b76c505e02baa58b38edc444896bac6b3a8a64fc7fcee46c9f6fe40ffbb6c84e
- 06 L 96c29598d5f6e51302ecde1f6296d4477cac9f4d4e61bbf670268534c863e537
- root 393734f8e6bd0212d99a3ca5c64c6a2f3490832122245273413465783e7156b8