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 ZAMBOANGA, ZAMBOANGA DEL SUR Award a ₱681.5K contract to FOUR BROS BML CONSTRUCTION AND ENTERPRISECities
Transaction hash:
83fed8ddf08f74ed3c7419bb344c175712a8b3193c9679935e1e4d47fb4318d9
Status:
Included and unchanged
Block:
#1,759 4,254 blocks after it
Position in block:
Transaction 42 of 69
Award day:
May 21, 2013 (13 yrs 5 mo ago)
Value:
₱681,470.02
Project:
Construction Project
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 #1,759 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 ZAMBOANGA, ZAMBOANGA DEL SUR awarded it to FOUR BROS BML CONSTRUCTION AND ENTERPRISE on 2013-05-21.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 Zamboanga 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 83fed8ddf0…4318d9now …
- 2. Block Merkle root changedstored eb9b76cfc4…4a0685now …
- 3. Block #1759 hash changedstored 6cdb39d282…e27f76now …
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 83fed8ddf08f74ed3c7419bb344c175712a8b3193c9679935e1e4d47fb4318d9
- 01 R 968d56f34404f46630fb3e9b2d57da66b325da7ea4f7ebf06b8c94e4349ca736
- 02 L 68d02ad344f9042fb68deaca9805567e774130634988ee68b6a0a2492d8d2cec
- 03 R 0ac93f5f878e5310ae30c7b9e51a3673b33dbd238b1d1246d509ef4f057b4298
- 04 L 5f96551ecba35d0071b1f85d185fc17fe8e35fd68c45ce6354e77de950991681
- 05 R 26c3ea31fae4c53ab1a940400bd8c4788d128f541e107223885de598ae23bf9e
- 06 L 2b5a453701062ef94ef829045e7d6d82de52707729dbf29fb9889968bb029ab5
- 07 R 7d54b31070847726b6ec676f992a3745066765f8854b494a52db8cef42e3b56e
- root eb9b76cfc49e4f512d454a3a32b2035035cd5da2e7637fd953da8389024a0685