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

PHILIPPINE NAVY Award a ₱2.8M contract to VIRLO CONSTRUCTIONNational agencies

Transaction hash:

a7ef71f0010c4c3a7d3159d29cb66626937f83aada4e2f470b89489eea874b77

Status:

Included and unchanged

Block:

#1,896 4,117 blocks after it

Position in block:

Transaction 39 of 72

Award day:

Oct 21, 2013 (13 yrs ago)

From:

PHILIPPINE NAVY

To:

VIRLO CONSTRUCTION

Value:

₱2,802,839.16

Project:

Supply and Delivery of Labor

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

PHILIPPINE NAVY

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 #1,896 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)
PHILIPPINE NAVY awarded it to VIRLO CONSTRUCTION on 2013-10-21.
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 a7ef71f001…874b77now …
2. Block Merkle root changed
stored 476e4a6aef…39de7fnow …
3. Block #1896 hash changed
stored 1c2400bb34…849648now …

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

Merkle proof (7 steps)

How this one record is tied to the block's Merkle root, without needing the other 71 records. Each step hashes the current value together with the sibling shown.

leaf a7ef71f0010c4c3a7d3159d29cb66626937f83aada4e2f470b89489eea874b77
01 L 9cf81e9a394b292b9cdff33935b56f5282c915d8ab991c028076d374db86d9aa
02 L 47866773f8fb1bea27ace2b2bbf78b98ffa186e1d62c6df6eb7a466e44ac610f
03 L a39a6fe2f788ca00546b0402ef3a8c894374f8c708557c124eb9ae27fd711142
04 R 0d524b0483a28ba204cfa0c87280d93b85dde77c9349ee8079c9efe1cd902138
05 R 08a951da5f456fc672c9f5eacfce6f986f71617a1d956fcf3c49a2029ee641a3
06 L 83990aaae99285996ef71c9c9992062753ea6bf1a06d0bd78e22f4a8bd7c90be
07 R 5df1a25f4cdf761dabbc45433f401908a4dd479a7ee2fb496bfa8d486087c7d2
root 476e4a6aef06e0125a1463e3b7cf14d4e8e98355419c7d62b24307e5dc39de7f