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 & HIGHWAYS - QUEZON CITY 1ST DEO Award a ₱858.7K contract to JKSA BUILDERSNational agencies

Transaction hash:

514b49a13ed459b70631c57015614c2a749e438933cc574702613fb96189248c

Status:

Included and unchanged

Block:

#1,030 4,983 blocks after it

Position in block:

Transaction 8 of 30

Award day:

Dec 20, 2010 (15 yrs 10 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS & HIGHWAYS - QUEZON CITY 1ST DEO

To:

JKSA BUILDERS

Value:

₱858,700.00

Project:

Repair/Rehab. of MPB (Day Care Center), Brgy. Baesa, Brgy. Pasong Tamo and Brgy. Tandang Sora, Q.C.

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS & HIGHWAYS - QUEZON CITY 1ST 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 #1,030 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 & HIGHWAYS - QUEZON CITY 1ST DEO awarded it to JKSA BUILDERS on 2010-12-20.
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 514b49a13e…89248cnow …
2. Block Merkle root changed
stored 1f8c4dbaf0…26c130now …
3. Block #1030 hash changed
stored eacfbadbf3…0523aanow …

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

leaf 514b49a13ed459b70631c57015614c2a749e438933cc574702613fb96189248c
01 R 57a14e76d60b1f221136e82950630148b841a566c10080f9fe8f690d6ad19855
02 R 3b3537b110b76d5f9fc72d3b9f046493d58fd2156d34c8e19bef9c29dbc6bb3d
03 R a7864faabb70532cf4fd5e80b9fbdbaf207b1e5918ca1f66b4f962ae31247e29
04 L a86a8c16fad8323ab8451520da4aa83e0e1214966a4c3de9fe776e3acffe7b06
05 R 4cdfffc0eadd1dd7b1bf84bcb64218bfcc2b69b0d154e98da84f1b97b9417cc9
root 1f8c4dbaf05e5149fd1a071558a044f7fc5582ddb9653c51d88533221f26c130