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 ₱2.2M contract to CARESYSTEM TECHNOLOGY SOLUTION CO. INC.Cities
Transaction hash:
a3d8ec0083fb6f41a245fe8eb29d24d24a6fff83e0fe877bcf22134e30820e21
Status:
Included and unchanged
Block:
#5,878 135 blocks after it
Position in block:
Transaction 219 of 347
Award day:
Jun 13, 2025 (1 yr 5 mo ago)
Value:
₱2,156,925.97
Project:
Infrastructure B05-2025-16
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 #5,878 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 CARESYSTEM TECHNOLOGY SOLUTION CO. INC. on 2025-06-13.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 a3d8ec0083…820e21now …
- 2. Block Merkle root changedstored cae4abc587…43141cnow …
- 3. Block #5878 hash changedstored cdc5faac06…8a497cnow …
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 346 records. Each step hashes the current value together with the sibling shown.
- leaf a3d8ec0083fb6f41a245fe8eb29d24d24a6fff83e0fe877bcf22134e30820e21
- 01 L a21461dbc83d0f1a3c7f152be7fb060d1553b93715461cfc2a8a6a4fe27dce89
- 02 L 3ca7890fc670f47c433093feac162bb8f7221003b6eb473e92d4e57e3b9c133d
- 03 R 3158f09f9fc9563b807816ae3c8f9dd4320e58ce7f9dc8419aef9fe717b2ed99
- 04 L 51558de8a00ae785b7f4db090f9631e837ec31ad86e07a472a1de047d85dfa54
- 05 L ecc893d614a58a83748d7312008625f38a00adff90f09d6002b4f575d9e26be0
- 06 R 7c956ab72a1845dc7867263f39b6394a65a6c67480ba77fbc5981e5820d8b428
- 07 L 00ae5dad3ea17f3bb91c684d511a56f43a3e854d468748cec5e517a57add2307
- 08 L 8eb669cb56b12c08f66f774c305ccaf41cf2466c29b57c15c69a4f22049d794c
- 09 R b06dc8b7bb26442919f7b38077743ddbeb4baf3f09e2e8ac7d14f00f369267a8
- root cae4abc5871a6a4c1c432bdb7b7d298e598d9ea1645543c62dd30fde2d43141c