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 ₱3.0M contract to ADAD ENGINEERING SERVICES AND SUPPLYProvinces
Transaction hash:
cffe2b147b906db9687555ffe7616b27915e0401ff57ad9f1521b7b8a507f0d0
Status:
Included and unchanged
Block:
#4,687 1,326 blocks after it
Position in block:
Transaction 214 of 256
Award day:
Jan 12, 2022 (4 yrs 10 mo ago)
From:
Value:
₱2,997,645.96
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 #4,687 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 ADAD ENGINEERING SERVICES AND SUPPLY on 2022-01-12.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 cffe2b147b…07f0d0now …
- 2. Block Merkle root changedstored 6066db71fd…59e131now …
- 3. Block #4687 hash changedstored 822a469dbf…9fbba4now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (8 steps)
How this one record is tied to the block's Merkle root, without needing the other 255 records. Each step hashes the current value together with the sibling shown.
- leaf cffe2b147b906db9687555ffe7616b27915e0401ff57ad9f1521b7b8a507f0d0
- 01 R d072ac576cd00fd9ad8c58839ce09c81e7033f9a2fe8639854c6db05088bec1e
- 02 L 7ab800cacd0805c76ca2103af0d41642e911998b80776d9e925ab3f006675f55
- 03 L f058bef54b7aa381c5edc032e7d77697eeba6a6f19997af69279cf78ec914ff7
- 04 R 66326f2c76a4bfaf6e5a0032b4b1d8eb13b362d5a66da86bb492282f34ade489
- 05 L 2e58fc6aeb405a3ef4a21073e86c0e231a56b68dd26270ff583dc8416238b085
- 06 R 302c2813cc7c36cc4775d4f8ee44bf731e55af39a60f3d35fda026cbaec39c2e
- 07 L 8744fc85f9932790b993e533f20c86bedb6a642b4ce5efcc8d97ca8ff03c31bb
- 08 L 38e3343d2d0e9a68af08c338a95d2a46940eccc6f8ba42e916cae43dcef5b27a
- root 6066db71fd7f8e363edcfcc2584d527ab7d69c2b75014d3c982f72caee59e131