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

CITY OF TANAUAN, BATANGAS Award a ₱997.9K contract to NP PEREZ BUILDERCities

Transaction hash:

a41d6b7ac1cafb2dc8d514879681901d6ecd6e9559ed88363acd5bbe00ede2fa

Status:

Included and unchanged

Block:

#2,562 3,451 blocks after it

Position in block:

Transaction 96 of 154

Award day:

Oct 29, 2015 (11 yrs ago)

From:

CITY OF TANAUAN, BATANGAS

To:

NP PEREZ BUILDER

Value:

₱997,917.56

Project:

Infra Projects 2015(4th qtr.-1st Batch)

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

CITY OF TANAUAN, BATANGAS

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 #2,562 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)
CITY OF TANAUAN, BATANGAS awarded it to NP PEREZ BUILDER on 2015-10-29.
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)
COA's CY2024 audit of City of Tanauan gave a "qualified" opinion on its financial statements (not specific to this contract).
Partly
Open

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

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 a41d6b7ac1…ede2fanow …
2. Block Merkle root changed
stored e571ca1f0c…9038b8now …
3. Block #2562 hash changed
stored 066afead99…958424now …

Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (8 steps)

How this one record is tied to the block's Merkle root, without needing the other 153 records. Each step hashes the current value together with the sibling shown.

leaf a41d6b7ac1cafb2dc8d514879681901d6ecd6e9559ed88363acd5bbe00ede2fa
01 R a5cf8a6caa73e4ad4d5b7eb43b1574e733051cb8b5ce835babe31da2ce859465
02 R 5beb8592baea298aaf90315967ebc0dba87df7a3ad5662309d1e677f9dd48424
03 R d4efc809d9c46f24db4872cd3090a48cdc1a3a7e9dd52358ed4600dc689a4250
04 R 8bc0ca9e5354519abf84b9c14c7c198718f53210627fa632b778762b9a4831eb
05 R e70682eecd03c9ea6b38774b98aeea8f41882e915955d6945f50499fc4b869bd
06 L 28a5034531687a1b63e3bf9fddcc58d96da9ee6f9202ecdf22c091ddbb8c3c83
07 L 5c3a0d207d5c77a3bcf9d71ccaf5f9c19a995a65b909de6fa686038bb29b29fd
08 R 086657844b5ef5f4ee13a476a745f55b9838be38a4d3d2220ebe84b260058efd
root e571ca1f0c16976409062eb072c41f0f39f29e4c7d43eea2521d5b013d9038b8