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 DAVAO, DAVAO DEL SUR Award a ₱2.5M contract to CCO ENGINEERING CONSTRUCTION AND SUPPLYCities
Transaction hash:
93e54fb8d070710b85aae9cc5c3cd423a71b02bd42b8a7ddd632e6ffa749c685
Status:
Included and unchanged
Block:
#4,980 1,033 blocks after it
Position in block:
Transaction 158 of 275
Award day:
Nov 18, 2022 (3 yrs 11 mo ago)
Value:
₱2,485,097.37
Project:
Infrastructure B13-2022-05
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 #4,980 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 DAVAO, DAVAO DEL SUR awarded it to CCO ENGINEERING CONSTRUCTION AND SUPPLY on 2022-11-18.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 Davao 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 93e54fb8d0…49c685now …
- 2. Block Merkle root changedstored c3f02c9627…3b606bnow …
- 3. Block #4980 hash changedstored 11922ac076…8d811bnow …
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 274 records. Each step hashes the current value together with the sibling shown.
- leaf 93e54fb8d070710b85aae9cc5c3cd423a71b02bd42b8a7ddd632e6ffa749c685
- 01 R 9875b837ba3572c3c24737f7f5e6ac15d97a6a68ebd44291470c46145c14dbf7
- 02 L 13dabe1ea2277d37feb8a7a45f5fcd2ff1f5cfa6e7a6f1d699cc0254a279a4a5
- 03 L c9f41878f6775da16ba5d49b548fe2b6da7a9baff17b70d6109694a7007615dc
- 04 L f550ff070535d0f41be0ab59113c8e769f895d4d28b3f88b3f658cc8a244a3cc
- 05 L 63148d4cdfcc51d84428be25ebd8348908db5f5f2daa40dcc6dbcbd1c62fceff
- 06 R 674b54d634e98e9c4e3d4308071363e3734fdd57141afd24c6bc623ce8137185
- 07 R c9249d3642f8adc9cb918455863e705ddde3df4a0569160a62a3a62a2b9e430e
- 08 L fddb0ab07bb3e980461ff150fc343019d255b25f5fcc6bed268d3a671fe8eb7e
- 09 R 813f05e81443382a8f70e7918450c81f415ca0c50797604da5a5ce101e6d2180
- root c3f02c96270d4341a5631b544efeb319d1ba97d0ec2441815d9bf27adf3b606b