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 ₱397.1K contract to G.L. LUMBAN CONSTRUCTIONCities

Transaction hash:

4dffb40272fc85f55981a9ffeb51f50c4ca65e79f84354d6ed73181b35d54bf8

Status:

Included and unchanged

Block:

#1,084 4,929 blocks after it

Position in block:

Transaction 15 of 45

Award day:

Feb 28, 2011 (15 yrs 8 mo ago)

From:

CITY OF TANAUAN, BATANGAS

To:

G.L. LUMBAN CONSTRUCTION

Value:

₱397,119.20

Project:

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 #1,084 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 G.L. LUMBAN CONSTRUCTION on 2011-02-28.
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 4dffb40272…d54bf8now …
2. Block Merkle root changed
stored 808f812787…7cd91fnow …
3. Block #1084 hash changed
stored 9847a71841…c092b7now …

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

leaf 4dffb40272fc85f55981a9ffeb51f50c4ca65e79f84354d6ed73181b35d54bf8
01 L 49bbdae8c33dec2094018fb72c3876fda6bf91a81604a57557333d83d0cdff02
02 L 1a98272edebfb86927e5b936f85d3421118c0735d9e431447e7039ec2c0d4a83
03 L b37eb313bf06caf866e3bf08877b6f23ac838ef823ff9b2b6a20c35a67b61371
04 L 42dffad8682454cc025d43988c21169a200732350b50f08b7fb68c00da7a2ee9
05 R d18b3023fdc47edb2eb9dbada865fc6f1dac299a9958c1f68395a22df04a6c44
06 R 211df9649da2cd558e15f9e25d88cf5dd34fd4e2bc6e8c57fe21aa0bffce1a92
root 808f812787ca02f6c7de373200ec56f8a105fe3ab88d716931ddfc33ff7cd91f