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 ₱2.7M contract to ROSAND BUILDERSCities
Transaction hash:
4e5aae09009e731a39dcd9b6e76df09ac7a3096a1aee6474ffe574a5fc1e38f0
Status:
Included and unchanged
Block:
#1,256 4,757 blocks after it
Position in block:
Transaction 10 of 26
Award day:
Sep 29, 2011 (15 yrs 1 mo ago)
From:
Value:
₱2,668,346.99
Project:
CRN 035 (ROAD)
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 #1,256 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 ROSAND BUILDERS on 2011-09-29.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 4e5aae0900…1e38f0now …
- 2. Block Merkle root changedstored 9f54d29f86…199dd2now …
- 3. Block #1256 hash changedstored 4c3dfba705…ee07cbnow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (5 steps)
How this one record is tied to the block's Merkle root, without needing the other 25 records. Each step hashes the current value together with the sibling shown.
- leaf 4e5aae09009e731a39dcd9b6e76df09ac7a3096a1aee6474ffe574a5fc1e38f0
- 01 R 68edfc2c7409432dabb6d2c6e8b0ac1b16adf687526c866c88414e8b829f336d
- 02 L 98246316e90167dfda733add7a9d5d0657626689950dbb37e964dba9d971ed44
- 03 R b9f0621cf09e44748d57cda659bf02c09771d4c4c557cbbd05c235436f91b011
- 04 L e0365dab8cac0274fc09f0b1f555eff6c02e9fda9d003273037b02bb951fac76
- 05 R 72ac3b65fb0a46273f6930df82ab238853f38125d08db3df2a184b6ab29e57a8
- root 9f54d29f86ad71d919202b11d577d5cca183cfdc94747d60118eaeb5a9199dd2