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 DIMATALING, ZAMBOANGA DEL SUR Award a ₱1.9M contract to OPTIMA BUILDERS CORPORATIONMunicipalities
Transaction hash:
3a6733d819ed5d8fa2fa6766efc33ebc4a818d7ffbb6ef2b6a18276562a25e03
Status:
Included and unchanged
Block:
#4,138 1,875 blocks after it
Position in block:
Transaction 1 of 6
Award day:
Jun 20, 2020 (6 yrs 4 mo ago)
Value:
₱1,887,568.34
Project:
Lot 1
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 #4,138 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 DIMATALING, ZAMBOANGA DEL SUR awarded it to OPTIMA BUILDERS CORPORATION on 2020-06-20.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 Dimataling 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 3a6733d819…a25e03now …
- 2. Block Merkle root changedstored 3c5f6b03e5…5abb3dnow …
- 3. Block #4138 hash changedstored c032ebac59…fd1e93now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (3 steps)
How this one record is tied to the block's Merkle root, without needing the other 5 records. Each step hashes the current value together with the sibling shown.
- leaf 3a6733d819ed5d8fa2fa6766efc33ebc4a818d7ffbb6ef2b6a18276562a25e03
- 01 L 32122e9f13d23bb65b65636e39adc6110f644d2327457dde73a0478cf0430e91
- 02 R 17b32e8aaa95a0821d9846e9ac5c4fd1531893f8d914e56915996ed6d4dfd606
- 03 R 2b55ea8fa6a181fc8ee6506a8e4b9e1101c991aaab5cd95937a279b1618a93c6
- root 3c5f6b03e5d4121f98bfaecc6cfb2e32d54ce8f23f2c2efca4c34e1de65abb3d