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
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO CITY SUB-DEO Award a ₱9.9M contract to R.C. MELGAZO BUILDERSNational agencies
Transaction hash:
aa11f68d728e1440407a0cdfc9bc9ec0d3a564c48afd00c106ab1f1d49ae1acf
Status:
Included and unchanged
Block:
#3,445 2,568 blocks after it
Position in block:
Transaction 316 of 466
Award day:
Jun 11, 2018 (8 yrs 5 mo ago)
Value:
₱9,850,499.98
Project:
NOA, CA, NTP
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 #3,445 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)DPWH lists the funding source as "Outside Infra - GAA 2018 DA FMR", i.e. the FY2018 GAA. The exact UACS line is not given.Partly
- 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)DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO CITY SUB-DEO awarded it to R.C. MELGAZO BUILDERS on 2018-06-11.Found
- 5. Contract & progressContract / progress report (DPWH) · Sec. 5(d)DPWH contract 18LH0064: Completed, 100% physical progress.Found
- 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)DPWH marks the contract "Completed" (end 2018-09-23). The certificate itself is not published.Partly
- 8. AuditCOA annual audit report · Sec. 5(e)(iii)No COA finding linked to this contract.Not published
2 of 8 documents found, 2 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 aa11f68d72…ae1acfnow …
- 2. Block Merkle root changedstored 4f727d4696…f33864now …
- 3. Block #3445 hash changedstored 3aa9db08ba…ab57c3now …
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 465 records. Each step hashes the current value together with the sibling shown.
- leaf aa11f68d728e1440407a0cdfc9bc9ec0d3a564c48afd00c106ab1f1d49ae1acf
- 01 R aa17c7f0d18a059791c9463778dcf4f4fa958164e5f7f97aab37cf4f929f8854
- 02 R a15e91461b7ab51976fa37bdd72314bf97c896859b6148cd23dc423f1219cb0b
- 03 L 22bff4060b8cbd5897b80510c3b0678c9324e3cbdbcf41b44598c581fcec57c6
- 04 L aed97635ef04f9b9a2f154842d3bf0e9deb4970e25040e40b9ebe8311f208625
- 05 L 9b8b31ec8239cbf14be0b22dd5ca173116f1860fb9a78af1f0712a80c7cedf0d
- 06 L 6eae408a49449300e8b30b0e88489981974036fe581b3eabab9b16ae7b79fecf
- 07 R 0fbfbd3ad8f2a2901bcb828d9f746680433df27df1a422c3dfcaab6c8cf42ff1
- 08 R 20bdcd92cf1c68bea0b1a48f54866d8123ce88ecbc0f4daa4fb8d384ab587c38
- 09 L 58a2d847f91f384357bd6ef1b49c045b10b62f80a93eda8e6814d0298b004089
- root 4f727d4696f51056ad4ef69080d1e1e7ae076671ebb776bec199f9d248f33864