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 ILOILO Award a ₱811.9K contract to V.N. GRANDE BUILDERS & SUPPLYCities
Transaction hash:
ae31c54afdcd6735e54b714e14565ffe34b4d89b8423579384e9a1210a5e19ff
Status:
Included and unchanged
Block:
#1,539 4,474 blocks after it
Position in block:
Transaction 75 of 100
Award day:
Aug 22, 2012 (14 yrs 2 mo ago)
From:
Value:
₱811,870.11
Project:
Completion of One (1) Classroom at Molo II Elementary School, Iloilo City (BID NO. 0349)
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 #1,539 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 ILOILO awarded it to V.N. GRANDE BUILDERS & SUPPLY on 2012-08-22.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 Iloilo gave a "unmodified" 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 ae31c54afd…5e19ffnow …
- 2. Block Merkle root changedstored bd44a8b12b…3af3f4now …
- 3. Block #1539 hash changedstored 0c0a5a1e31…390fb3now …
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 99 records. Each step hashes the current value together with the sibling shown.
- leaf ae31c54afdcd6735e54b714e14565ffe34b4d89b8423579384e9a1210a5e19ff
- 01 L ae3031bbae5e388e9e23e64a13e19cc65fb1772f8033b0bb7c655949c84ebc34
- 02 L f18b4f1833e4f4a686359994d2c8bb15bdd7018b22df25b60f110f88f31f0d66
- 03 R 4903c215700e24b90d8c3be31f1ea60a0f58395d27e13ab255ffe295e9c9d9a8
- 04 L 87d6b8e8c24cf3bfd4b1192e54172298f4e0af5d92eb953014a534e9d0725482
- 05 R 8077c3a90843b42ecda390ac52e4119244e7d4bc6ab99fadb2df0dc287aedc3a
- 06 R cb58018817bf6440b50f97d2675d2990951c9b7b71715f71dabdda872f116592
- 07 L 938063efca615745c97a37bc06934ede4fa45d11051e102cb87b3479dc2b277f
- root bd44a8b12b7eb56c27d6b5d4028c32a6c2d65b49fafa7540faefcbab7c3af3f4