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 DAVAO, DAVAO DEL SUR Award a ₱1.8M contract to DAVAO ENGINEERS CONTRACTORS COOPERATIVECities
Transaction hash:
fc2d4bb05bb184100bde3870509fb3e7f025ff01d98c66d2b727ff205a0d16fa
Status:
Included and unchanged
Block:
#641 5,372 blocks after it
Position in block:
Transaction 64 of 69
Award day:
Jul 14, 2009 (17 yrs 4 mo ago)
Value:
₱1,775,101.69
Project:
Concreting of Farm to Market Road from Brgy. Mandug to Brgy. Callawa, Buhangin Dist., Davao City
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 #641 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 DAVAO, DAVAO DEL SUR awarded it to DAVAO ENGINEERS CONTRACTORS COOPERATIVE on 2009-07-14.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 Davao 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 fc2d4bb05b…0d16fanow …
- 2. Block Merkle root changedstored d590fd1a16…d653c9now …
- 3. Block #641 hash changedstored e0870deabf…0f67banow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (7 steps)
How this one record is tied to the block's Merkle root, without needing the other 68 records. Each step hashes the current value together with the sibling shown.
- leaf fc2d4bb05bb184100bde3870509fb3e7f025ff01d98c66d2b727ff205a0d16fa
- 01 R fce8c97f870919921509557e7209555b4bd6345ef06d68c12a89acdd52c15124
- 02 R 7a1b8cc55830ff96a48a2e0791d9afdb64259a10eea5281f04b20b990cf3e07e
- 03 R af4556c12170420440fa9a79cfc0e1decd0b3efbaa7a981d5def849860f58af8
- 04 R 7273c25c575a9a989ade939446658ee2a5335078d18dbd4b8f59de3b4d155576
- 05 R c380e922f352cb28dcae478e6da8227f0939b4c5e3c872ff49932579d8c06a7e
- 06 R 27a9c36225c514bb94eee8dc5207a5c46a4a7ec41e54e8957a6f06b69e960d20
- 07 L 52a81edd41c7b0be2d2901c8a7a53e22ff391d39336950bcb60b486c7d60f665
- root d590fd1a16d6e4d6702de7a9b87fc77be22a4a3aaf6fd5755ab8fd36a8d653c9