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 - PANGASINAN 3RD DEO Award a ₱7.5M contract to R.A. PAHATI GRAVEL AND SANDNational agencies

Transaction hash:

4a17346cac3f09d49af940ea2a00f0a72ba0eb9de40e647612d6f7df16577733

Status:

Included and unchanged

Block:

#836 5,177 blocks after it

Position in block:

Transaction 1 of 7

Award day:

Apr 6, 2010 (16 yrs 7 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - PANGASINAN 3RD DEO

To:

R.A. PAHATI GRAVEL AND SAND

Value:

₱7,496,956.97

Project:

Repair/Rehab. of Manila North road km. 168+280-km. 171+130, with exceptions,Rosales, Pangasinan

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - PANGASINAN 3RD DEO

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 #836 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 - PANGASINAN 3RD DEO awarded it to R.A. PAHATI GRAVEL AND SAND on 2010-04-06.
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 4a17346cac…577733now …
2. Block Merkle root changed
stored 2c1bec4c8c…ffbd35now …
3. Block #836 hash changed
stored c8edc9aa74…a14bdenow …

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

Merkle proof (3 steps)

How this one record is tied to the block's Merkle root, without needing the other 6 records. Each step hashes the current value together with the sibling shown.

leaf 4a17346cac3f09d49af940ea2a00f0a72ba0eb9de40e647612d6f7df16577733
01 L 1e33bfe931ff44d56e9c57da049443e40c8763b7b91f2509134ffb01d7bc7631
02 R 3861bc59126e646be2b0323ea61d22d8dbcff91061b7146ff9e4d7c3720344b6
03 R 5ea86ca1a8af82256dbc90d0e5ed32148ae4c102d4d26099674ba5fb85bca650
root 2c1bec4c8cf9012ffaea66503a386693a10e5b8a48beb86d2ec979b965ffbd35