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 ₱2.6M contract to ALEA CONSTRUCTION CORPORATIONCities
Transaction hash:
c350adc1cf1da41b2ac16bac6e81e62f70736439022a342f4de5e1e512c9137c
Status:
Included and unchanged
Block:
#4,878 1,135 blocks after it
Position in block:
Transaction 163 of 217
Award day:
Aug 5, 2022 (4 yrs 3 mo ago)
Value:
₱2,592,284.78
Project:
Infrastructure B08-2022-08
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 #4,878 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 ALEA CONSTRUCTION CORPORATION on 2022-08-05.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 c350adc1cf…c9137cnow …
- 2. Block Merkle root changedstored 0888d13770…4cb915now …
- 3. Block #4878 hash changedstored a5d2f945ae…f47af4now …
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 216 records. Each step hashes the current value together with the sibling shown.
- leaf c350adc1cf1da41b2ac16bac6e81e62f70736439022a342f4de5e1e512c9137c
- 01 L c2f5a186d36766bbd8776ef3e44a744e0180a0e2fee6440c08648b81729a382b
- 02 L 1a37b2e4c148d0b1076b799dd47e1d5bcf63be396c11d5b28fb6b59d56631adb
- 03 R 0e5873fbe6d51c2ffd10d301bf5e541ce8842bb90499a7fa4e467fb0febb3a70
- 04 R 24acc33999d34b150b8c3e1ddc79a6666c424d6636225669e4295812b3ea0f91
- 05 R 7b9e4aeeb4462e7d74f2ca44a00233748b8ac811e069b8c38b1369d2fec187bb
- 06 L ee436f284a0d7252b905384f1a11d368e6e0f13c2a5be0849d7a8b9dae4c920c
- 07 R cd20d3b6930b7cc0c7be62a4001ce3a7252dfec4ea4f02e753c4eef714db70cf
- 08 L fac3d59ee4e466e1c7cb360523caab6baa89c4b0f2dfdcaa040804890f07e7d9
- root 0888d137709d0e668960dff4c530fc04966734d84c2760373454eea55a4cb915