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 - BAGUIO CITY DEO Award a ₱2.2M contract to O'HARA CONSTRUCTION & AGGREGATESNational agencies

Transaction hash:

273fef9fd71d5af84585cd89ea88ed52a21f116e461f10004bcb2481432cb2e6

Status:

Included and unchanged

Block:

#1,537 4,476 blocks after it

Position in block:

Transaction 6 of 24

Award day:

Aug 20, 2012 (14 yrs 2 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BAGUIO CITY DEO

To:

O'HARA CONSTRUCTION & AGGREGATES

Value:

₱2,175,732.80

Project:

Repair/Rehabilitation and Construction of Farm to Market Roads in the Designated Key Production Areas, Balenben, Irisan

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BAGUIO CITY 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 #1,537 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 - BAGUIO CITY DEO awarded it to O'HARA CONSTRUCTION & AGGREGATES on 2012-08-20.
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 273fef9fd7…2cb2e6now …
2. Block Merkle root changed
stored ab8dc75835…21c6f2now …
3. Block #1537 hash changed
stored a69901193a…9b9564now …

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

leaf 273fef9fd71d5af84585cd89ea88ed52a21f116e461f10004bcb2481432cb2e6
01 R 4db5841c67222c3a7e5b49efadcacf3061dd48367c5e3dbb8b480c2496737e7a
02 L 87d14c6500e80977de27fecefcf05262b43b442b928985fbc8d781fb1d238fa9
03 L 209791672edb333d0b8602ffefa3463e614250b99518868f0c69fadb10c8c1f9
04 R 7c5de7069dfe83fec98f1c73169d0b94e9d503cffde303868247e8219795e096
05 R 17fc5c41c79d57cb2493c41f273326d21a186f763b012652f6e2c29037965342
root ab8dc75835f3d03529f93a1ea74b2067661e08416b47ecf237fc529c1421c6f2