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 VIGAN, ILOCOS SUR Award a ₱493.8K contract to 739 BUILDERSCities
Transaction hash:
dc83fab3dde263e23c63d4d55d5926d4bbbaf44aa0cb195c7a3a988e68b07b44
Status:
Included and unchanged
Block:
#1,179 4,834 blocks after it
Position in block:
Transaction 30 of 38
Award day:
Jun 30, 2011 (15 yrs 4 mo ago)
To:
Value:
₱493,833.60
Project:
Construction of Drainage Canal at Tamag, Vigan Ctiy
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 #1,179 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 VIGAN, ILOCOS SUR awarded it to 739 BUILDERS on 2011-06-30.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 Vigan 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 dc83fab3dd…b07b44now …
- 2. Block Merkle root changedstored e3463f63a9…79bb1fnow …
- 3. Block #1179 hash changedstored 2db8cb1809…3ef06bnow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (6 steps)
How this one record is tied to the block's Merkle root, without needing the other 37 records. Each step hashes the current value together with the sibling shown.
- leaf dc83fab3dde263e23c63d4d55d5926d4bbbaf44aa0cb195c7a3a988e68b07b44
- 01 R e2e580d1b50b51d56904d17ea73568a54bcce7215a2c79a0465b34ce3668b883
- 02 L 1e6a41906ae40a46c14d76d899fe5eafaec990397ee7d4aa4fc9f05518c8173d
- 03 L 600990bc82e980fa913682eba9fb0373903b899c6a730aead9c0193d3ad5271c
- 04 L ca0bf2da5a234c5046383d352b0b227c639ce2115a3fd62caee634bbd2ecb424
- 05 L 4441c348af49f4b70393cf9e17a97beaf5404c47487f89244b485ba19e2f851d
- 06 R dce9b99ec3b6d3a4bb682be990386ce20f155a9fe190a817a37df851f241ffcd
- root e3463f63a981e2cebf347d17860f364b4e89ff3e692ffaee8fcb1c0a4b79bb1f