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
PROVINCE OF QUEZON Award a ₱5.0M contract to JEMAK CONSTRUCTION & SUPPLYProvinces
Transaction hash:
60e8a7067ea64c80644ba2d6e21ff86441ff2ecdddcfa33599a86cf54e8e10a0
Status:
Included and unchanged
Block:
#4,915 1,098 blocks after it
Position in block:
Transaction 107 of 302
Award day:
Sep 12, 2022 (4 yrs 2 mo ago)
From:
Value:
₱4,972,835.72
Project:
Construction of Materials and Civil Works
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 #4,915 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)PROVINCE OF QUEZON awarded it to JEMAK CONSTRUCTION & SUPPLY on 2022-09-12.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 Quezon 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 60e8a7067e…8e10a0now …
- 2. Block Merkle root changedstored db1bcd9d0a…ada701now …
- 3. Block #4915 hash changedstored 0b24e5edae…ef361fnow …
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 301 records. Each step hashes the current value together with the sibling shown.
- leaf 60e8a7067ea64c80644ba2d6e21ff86441ff2ecdddcfa33599a86cf54e8e10a0
- 01 L 6086ddae448b63a1338e81182d3057ef1e1f6c8c74e66901ce72e24dcd5564cb
- 02 L afa6329adc4a795f8103a4ea3805f8b89315364d9e98cad170225c5136124957
- 03 R 44b98c76b5ab29a3fc8767f5bd407c90cd21c91577a1531664de4fe5069a9af2
- 04 L 8df3c011f7dfe8f253afa346895e1988808c2216c81849b0b5206199b13655bb
- 05 R c07866446cc5c06d054648c3cca47786af10af44c7b400a5433991a814f143ea
- 06 L e58b03a1181e55642073f47499fc0024f54fa73d58cff8444cad776418f888e6
- 07 L e833c4d8fba2921541e5cdde5fd762daccdcd6d70ff88b11c9106a5d6872ed8b
- 08 R 6d816095b7dfba4d4df7413aabd2588bb57c82a62158881bff2e87e58efcded0
- 09 R 8f96ed6a515b72f4ed3f10bf73bdb235f7daa29c2c4dcbad33a6b44066acca77
- root db1bcd9d0a3a278e5d48f852f843a6fb6a91d7931edfed2b07a538d6b7ada701