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 - SOUTH COTABATO DEO Award a ₱8.1M contract to GEMMA CONSTRUCTION SUPPLY INC.National agencies

Transaction hash:

e65b8d5f6b5ffb50288f150de8f8fb80a7693fd71f96ca0b9593e573b4d6e2bf

Status:

Included and unchanged

Block:

#1,541 4,472 blocks after it

Position in block:

Transaction 52 of 59

Award day:

Aug 24, 2012 (14 yrs 2 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - SOUTH COTABATO DEO

To:

GEMMA CONSTRUCTION SUPPLY INC.

Value:

₱8,082,162.42

Project:

12MG0043 - Construction of Flood Control and Drainage Canal along Midsayap - Marbel Road, Brgy. Zone IV Section, Koronadal City, South Cotabato

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - SOUTH COTABATO 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 #1,541 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 - SOUTH COTABATO DEO awarded it to GEMMA CONSTRUCTION SUPPLY INC. on 2012-08-24.
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 e65b8d5f6b…d6e2bfnow …
2. Block Merkle root changed
stored e6a8f002c5…abc049now …
3. Block #1541 hash changed
stored 42e06fef59…af7a39now …

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

leaf e65b8d5f6b5ffb50288f150de8f8fb80a7693fd71f96ca0b9593e573b4d6e2bf
01 R edac2c5a4ad33bda58ccfc6c5b8bf15b3e9d7a314c2608f980b9d15d5ecaf268
02 R 966dd559c5b5d26608225f68ce4be4262cc766166882b7521617b872bed33b26
03 L 7de9916ec94d90d6cb2d42214c3d85c1dafc116f1305644695056e32d316ec8b
04 R 3def23cfb2b3b1536732909d21cd50f50511585ac2d0474cca9ae5e70363ac50
05 L 13f301b182f8363b5d80e31f3397d53e72e2554abb065f4ab2cc899b1e0c940e
06 L 2660063aeb2503781dc1eb0df0ea7b31f21173bc4ad6690028b3d70ccc2b6622
root e6a8f002c560dabac3803d2f50b612a8cc30d3005697e25ed2f4af4846abc049