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 LEGASPI, ALBAY Award a ₱493.8K contract to TWIN ACER BUILDERS AND SUPPLYCities

Transaction hash:

b78b4e4bbfee6d76e71bc4db9e3ddd99f2c07b77dab2b7420e1a5ff83bbb2745

Status:

Included and unchanged

Block:

#783 5,230 blocks after it

Position in block:

Transaction 21 of 38

Award day:

Jan 25, 2010 (16 yrs 9 mo ago)

From:

CITY OF LEGASPI, ALBAY

To:

TWIN ACER BUILDERS AND SUPPLY

Value:

₱493,848.34

Project:

(small value procurement) Furnishing of Labor, Materials and Equipment for the Proposed Concreting of Road Leading to St. Dominic Subdivision

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

CITY OF LEGASPI, ALBAY

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 #783 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 LEGASPI, ALBAY awarded it to TWIN ACER BUILDERS AND SUPPLY on 2010-01-25.
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 b78b4e4bbf…bb2745now …
2. Block Merkle root changed
stored d3bca304e5…abd5a4now …
3. Block #783 hash changed
stored 5c84fa9fe9…25fad0now …

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 b78b4e4bbfee6d76e71bc4db9e3ddd99f2c07b77dab2b7420e1a5ff83bbb2745
01 L b67597783673a74c0572a7461d9a90fb57b9cc65a8f199f98e37ee6fd6ec1529
02 R 249cc363839a2bcaee4a1616004e976484fe795dfef4f96211c552c47693cf54
03 L aa8b4bd31234abbf83c2897dc52516cf185975712d848fc3bc4988267bcb93c4
04 R 778e6e2f14e090c81f3ebe541045937b9af0aa734ca7207ead41f7d3ab1dc8ba
05 L e7c18ffd925402588e5c6c0403dabdf33e4202c9bb7e65dcea00e22be6371112
06 R b09c1118d961eeccb6a825239110c695c1a48d189d6c4d79778be691ff0013cf
root d3bca304e5f708a90a69c72af245fcfa7f8e902e2930e0853348c01484abd5a4