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 EDUCATION - DIVISION OF CAVITE CITY Award a ₱5.8M contract to R.A. YOLANGCO CONSTRUCTION AND TRADINGNational agencies

Transaction hash:

8fe8d4bd855dd384b5171511217fc5fd262edf742a5f2ea5c522fc5d381ccca8

Status:

Included and unchanged

Block:

#2,004 4,009 blocks after it

Position in block:

Transaction 22 of 37

Award day:

Feb 19, 2014 (12 yrs 8 mo ago)

From:

DEPARTMENT OF EDUCATION - DIVISION OF CAVITE CITY

To:

R.A. YOLANGCO CONSTRUCTION AND TRADING

Value:

₱5,805,365.90

Project:

Construction Project

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF EDUCATION - DIVISION OF CAVITE CITY

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 #2,004 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 EDUCATION - DIVISION OF CAVITE CITY awarded it to R.A. YOLANGCO CONSTRUCTION AND TRADING on 2014-02-19.
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 8fe8d4bd85…1ccca8now …
2. Block Merkle root changed
stored 7ec31e5044…7e6e95now …
3. Block #2004 hash changed
stored d90b54301c…a3fc1dnow …

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

leaf 8fe8d4bd855dd384b5171511217fc5fd262edf742a5f2ea5c522fc5d381ccca8
01 R 98d46a306d1dc533e47c254ad4a64af311e1a3f39d6d79b966867bc8c7128fad
02 L 97ecfc6349a007802d9f8df827cc849fcd4bd52a2872e3728e857c2cfc8ee4d0
03 L 35f4e5a6ea644e573f23079f9b0eae4b149c6d58b9aa72a8ac34e1f5a5fcbdb8
04 R 84b8d63c280b0570d293958b9c4a6de382628642641d1ec8045f191ebbcebd34
05 L 28062eeb2c554273a1435d9741789853a47ef35d28fe463bd9ada042fa79d28b
06 R 9158be84471c893342dc614462720264786e631a2a15e6dd8e9eaeccd484de9a
root 7ec31e504414c601848de2393613ea100ec26f9f8cad3f0b4d12d4dfb77e6e95