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 QUEZON Award a ₱1.6M contract to V.S. CERDON IRON WORKS & CONSTRUCTIONCities
Transaction hash:
ddf4e32c04f34606e0d86c7d82530e1580894b3030c95b6e8e7738d837df2ff6
Status:
Included and unchanged
Block:
#3,566 2,447 blocks after it
Position in block:
Transaction 248 of 291
Award day:
Oct 19, 2018 (8 yrs ago)
From:
Value:
₱1,579,166.23
Project:
18-1002
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 #3,566 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 QUEZON awarded it to V.S. CERDON IRON WORKS & CONSTRUCTION on 2018-10-19.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 City 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 ddf4e32c04…df2ff6now …
- 2. Block Merkle root changedstored b4e44d9425…125ecbnow …
- 3. Block #3566 hash changedstored acbaa4506d…e88051now …
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 290 records. Each step hashes the current value together with the sibling shown.
- leaf ddf4e32c04f34606e0d86c7d82530e1580894b3030c95b6e8e7738d837df2ff6
- 01 R de26d18ea44f9e3cf79d03201f9d6c726911ca0f86fdf91c0b8dbdac4854d5e8
- 02 R 86ab736144914a1176e6b6cbc3a9a2820aaf19b9603b9dd66e34188bd220b442
- 03 R 1c13ce172fb8bf25f73e1060b3c4d36a5a54058953500960bad36aee4b5585a2
- 04 L ced98a6d2e93c6cefb0b38cf1900cb7c44611f549fc8d18e3a51cc5cab3d21d3
- 05 L a31b744b33cc591b5cb52fb0852412979071e0cbfbc84bad490a3503d0adb25a
- 06 L 0c9cbffebe0937588c3c48f32e57fb38c866c87d21415b03a0fc3cd66bdd5bb3
- 07 L 27d10e6e8f61267e4e08290668848330594de8427156bc205520c1fe335f4595
- 08 L 9d683852a4613754a5d50cb202c36b4da841bbf0ed355137dca47414fe488cae
- 09 R 017e47c1292c3c6d7e51df8cbe42a4864a22984ca788220b5bafd53356d91988
- root b4e44d9425fb8fb7bddbeb4478f95c44db1db0a960a388d8d3ba0e6574125ecb