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

API

Transaction action

UNIVERSITY OF THE PHILIPPINES SYSTEM - DILIMAN Award a ₱7.3M contract to R & M PEREZ DESIGN AND CONSTRUCTIONNational agencies

Transaction hash:

a310da80b6b5cc5a304c7a0ca4fe65bf596f65cc5b35de5717ba0b4d86b471f1

Status:

Included and unchanged

Block:

#782 5,231 blocks after it

Position in block:

Transaction 15 of 27

Award day:

Jan 22, 2010 (16 yrs 9 mo ago)

From:

UNIVERSITY OF THE PHILIPPINES SYSTEM - DILIMAN

To:

R & M PEREZ DESIGN AND CONSTRUCTION

Value:

₱7,313,815.59

Project:

Proposed Rehabilitation of Buildings Damaged by Typhoon Emong Main Laboratory Building and Land-Based Hatchery, University of the Philippines Marine Science Institute (MSI) Bolinao Marine Laboratory

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

UNIVERSITY OF THE PHILIPPINES SYSTEM - DILIMAN

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 #782 signature valid Demo key, proves nothing about the governmentPublic key

Linked records: from budget to payment

Bill Sec. 5

1. Appropriation
GAA line item · Sec. 5(b)
The award does not say which budget line pays for it.
Not published
2. Allotment release
SARO / allotment · Sec. 5(c)(iii)
Not published per project. DBM releases SAROs, but not linked to individual contracts.
Not published
3. Cash allocation
Notice of Cash Allocation · Sec. 5(c)(iv)
Not published per project.
Not published
4. Contract award
Notice of Award (PhilGEPS) · Sec. 5(d)
UNIVERSITY OF THE PHILIPPINES SYSTEM - DILIMAN awarded it to R & M PEREZ DESIGN AND CONSTRUCTION on 2010-01-22.
Found
Open
5. Contract & progress
Contract / progress report (DPWH) · Sec. 5(d)
No matching DPWH contract record (only DPWH contracts are listed with progress).
Not published
6. Payment
Disbursement voucher · Sec. 5(c)(viii)
Not published. No public source shows how much of this contract has been paid.
Not published
7. Completion
Certificate of completion · Sec. 5(d)
No completion certificate published.
Not published
8. Audit
COA annual audit report · Sec. 5(e)(iii)
No COA finding linked to this contract.
Not published

1 of 8 documents found, 0 partly. Under CADENA every step would be published within 7 working days and linked to this record.

Tamper test: try changing this record

Demo

Edit the amount as if someone quietly changed the record. Your browser re-hashes it and walks up the chain. Nothing is saved.

Contract amount (₱)

1. Record fingerprint changed
stored a310da80b6…b471f1now …
2. Block Merkle root changed
stored 7cd614c363…4a2976now …
3. Block #782 hash changed
stored 37da2376b4…4655e9now …

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 26 records. Each step hashes the current value together with the sibling shown.

leaf a310da80b6b5cc5a304c7a0ca4fe65bf596f65cc5b35de5717ba0b4d86b471f1
01 L 9e01eceb778ebed1d2a3844ca4c8c6d46e08df3b3e222fb0d508f1e6297d1632
02 L bfd210d4f214c264d4dcfddf3f15186c63a1668545c4973fd4c03e4c8e27244d
03 L 5b1268b310944a1ec57f4f4242890c97d6b3148a0938c04d919d3850372fd8e4
04 L 89ae439fa53b789102815d80e96ba31d62e58efa31f00ac35fd3be766926602f
05 R 5f2f3ab9bdd2b67b42a9fa7e63621cd160686d3deea0e6f4d9eab321b7630faa
root 7cd614c3633436b63f93c4cb7a4211285a758856a8f2df35f83d69fc064a2976