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 ₱312.9K contract to MBB CONSTRUCTIONCities
Transaction hash:
4b5a77b78e2e5c8d0a88ffd76bd580516c1dc394ec413926e0a30fe46d9fc286
Status:
Included and unchanged
Block:
#1,180 4,833 blocks after it
Position in block:
Transaction 16 of 47
Award day:
Jul 1, 2011 (15 yrs 4 mo ago)
Value:
₱312,870.51
Project:
Relocation of Day Care Center (Phase II) at Brgy IX, Vigan City
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 #1,180 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 MBB CONSTRUCTION on 2011-07-01.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 4b5a77b78e…9fc286now …
- 2. Block Merkle root changedstored 5bbfb9a9bc…3988a2now …
- 3. Block #1180 hash changedstored 4950ac19f5…3c07e7now …
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 46 records. Each step hashes the current value together with the sibling shown.
- leaf 4b5a77b78e2e5c8d0a88ffd76bd580516c1dc394ec413926e0a30fe46d9fc286
- 01 R 4c26644cd77833d92424e9ed49c4b21e8a2f418710ca8886ffafaf1a36f3f34d
- 02 R 0728af27c39f2f5415021580acb8ba46932cb098b3993ef57b8122d03785ff3e
- 03 R b67e68a82357e2099497a965de92c1325fba364f0765270dcf058bce6656aece
- 04 R 088b2c04fab6b247ec19f260d446d132a85d58a8d8419be250631d351290a0ce
- 05 L 94d6c3490a3e857eaefc46c9d4528cb847d839393c18597a26d3481a85f2bfc8
- 06 R 3de2dbc5c37a55593f64454f82a3c36f5cdc91f368eb4e605c28be4dad640dda
- root 5bbfb9a9bcb66eff917d3b5403a8705b82cfe5bf8d4ebf0217ba7881c23988a2