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 VALENZUELA Award a ₱45.8M contract to IZUMO CONTRACTORS, INC.Cities
Transaction hash:
cdee434522fa9fc579ffa8853a3cc151115bb66273fe9f46805ea2fbbf392ec5
Status:
Included and unchanged
Block:
#1,314 4,699 blocks after it
Position in block:
Transaction 73 of 87
Award day:
Dec 5, 2011 (14 yrs 11 mo ago)
From:
Value:
₱45,842,439.18
Project:
CRN 050 (Construction of 4-storey 50 Classroom School Building)
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 #1,314 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 VALENZUELA awarded it to IZUMO CONTRACTORS, INC. on 2011-12-05.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 Valenzuela 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 cdee434522…392ec5now …
- 2. Block Merkle root changedstored c7648c7f63…99c0c2now …
- 3. Block #1314 hash changedstored 36d92cbfc9…ea2acenow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (7 steps)
How this one record is tied to the block's Merkle root, without needing the other 86 records. Each step hashes the current value together with the sibling shown.
- leaf cdee434522fa9fc579ffa8853a3cc151115bb66273fe9f46805ea2fbbf392ec5
- 01 L cdbc79125065b2d0dd41b30212b023edde81feb1ee7323b7ba72de51e0976fe5
- 02 R 4083ef640d55bc28dab3cf59eba46f7af5a83f071cb42df70069b03509f64a6b
- 03 R 68f04c95c3e3cbd14ec1b5c3d0edfdc4ed294ea10895ed665b99bfb8d44bfe4c
- 04 L 0df1850adfc631e0dc0305b63a2a5b9970347d1ae7265b0c85f2ca3c22339631
- 05 R 94a7fef27d2e10f6622551cc1beb8afa8a9920b7f4b9607914cc3f0ec288459b
- 06 R 92c80181dc1e7bbeca7375874b424bbaf2278bcfc794da3a2d86c61c1dc6c790
- 07 L 3adde14368a4531e2c2977b0827c5e17cac9f373e70a37bd8eafc43d2ef5cd68
- root c7648c7f636f95ee50a250f6bc84e19d187a5cc46df1b2db516131aa9799c0c2