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 - NCR Award a ₱30.3K contract to FERRER CONSTRUCTION & ENGINEERING SERVICESNational agencies

Transaction hash:

430a9baa503cccdca0c4f4ec6be5b606ecd27735caf50887374dca476593e807

Status:

Included and unchanged

Block:

#473 5,540 blocks after it

Position in block:

Transaction 11 of 36

Award day:

Nov 17, 2008 (17 yrs 11 mo ago)

From:

DEPARTMENT OF EDUCATION - NCR

To:

FERRER CONSTRUCTION & ENGINEERING SERVICES

Value:

₱30,295.64

Project:

Repainting of Legal & Investigation Unit

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF EDUCATION - NCR

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 #473 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 - NCR awarded it to FERRER CONSTRUCTION & ENGINEERING SERVICES on 2008-11-17.
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 430a9baa50…93e807now …
2. Block Merkle root changed
stored 9d6c7028ec…4c65a5now …
3. Block #473 hash changed
stored 6f02182a6a…52c3a1now …

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

leaf 430a9baa503cccdca0c4f4ec6be5b606ecd27735caf50887374dca476593e807
01 L 40e63130c0619a9400512d8b40d02769f78e9bce09a38ef5feb7f5373107d132
02 L af13dfb8c9fc0b8808fd41894de061b997f7c9d9c9d379e08665fdce505498fc
03 R 53aa76157e29808f2c8ee7ca23992af1b425210fbdcf0aa18700be01250203f5
04 L d1375d147052c716b49130f68aacd0cdaef813a14c15bea8898a224721c31f86
05 R 99deba0b0c907020e471e242521357a5cef121a8b11f2abab026b263966c908c
06 R 3ad03b26637d698cada3ecf5fe6728eec5e8d1515cfdba3051ff00db92f46bd5
root 9d6c7028ec90a5a76cf25b07ecf92d5b762f22150cb0e070268cab83524c65a5