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

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO DEL SUR 2ND Award a ₱3.0M contract to O.G. SANTOS CONSTRUCTIONNational agencies

Transaction hash:

8538bfc8447bb7f2e41aad352dc688936c0e80ca74e48c4519fb667c0befa93c

Status:

Included and unchanged

Block:

#1,360 4,653 blocks after it

Position in block:

Transaction 10 of 20

Award day:

Jan 25, 2012 (14 yrs 9 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO DEL SUR 2ND

To:

O.G. SANTOS CONSTRUCTION

Value:

₱2,996,500.00

Project:

Repair ofCulaman Flood Control, Lacaron, Culaman, Malita, Davao del Sur

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO DEL SUR 2ND

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 #1,360 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)
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO DEL SUR 2ND awarded it to O.G. SANTOS CONSTRUCTION on 2012-01-25.
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 8538bfc844…efa93cnow …
2. Block Merkle root changed
stored c3897c0b0f…f4b464now …
3. Block #1360 hash changed
stored 95a2b2102f…924b60now …

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

leaf 8538bfc8447bb7f2e41aad352dc688936c0e80ca74e48c4519fb667c0befa93c
01 R 883dfdbdf9d73be8fcf35a669793ecc0008a69972418f5102622b7380ee7b65e
02 L 327822c96f75b2d41823ffe76a54ab73dd9cf984016a684e98059f092faf4814
03 R e9dd74675c32037f288aae7fcf8bc828212a7fe3618d4f0a06387a22e9361101
04 L 54448b50a510da4c6a71c6673e476f8efd7cd7d9699c159d1ab44ee68ca9f3c6
05 R e50403a3005e194c720bee48e6c613195a4a0d709311e2a838ce85423d4c9b98
root c3897c0b0f504f3950c7bbcdd062f36cefc4dcfc4f36f87541c24ae13af4b464