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 - BATANGAS 2ND ED Award a ₱1.5M contract to NBL CONSTRUCTIONNational agencies

Transaction hash:

dc414b681ea105ed98414e8d50a44e7a3fc64f91abe48c784e24bfeb65574ed6

Status:

Included and unchanged

Block:

#1,581 4,432 blocks after it

Position in block:

Transaction 37 of 41

Award day:

Oct 9, 2012 (14 yrs 1 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BATANGAS 2ND ED

To:

NBL CONSTRUCTION

Value:

₱1,498,498.60

Project:

Cluster IV - Construction / Rehabilitation / Repair of Slope Protection - 5 projects

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BATANGAS 2ND ED

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 #1,581 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 - BATANGAS 2ND ED awarded it to NBL CONSTRUCTION on 2012-10-09.
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 dc414b681e…574ed6now …
2. Block Merkle root changed
stored 8143b7fe3a…0cd48fnow …
3. Block #1581 hash changed
stored 7fc0f94cdc…74e872now …

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

leaf dc414b681ea105ed98414e8d50a44e7a3fc64f91abe48c784e24bfeb65574ed6
01 L d0244e1622a2442bad203aa13f89ad2e1f6aef7303b7107b018fb1831ab96934
02 R 860487b375930f06698c63f21583471aab8c062f59027bed211e2ae5194a595f
03 L f4d1eea2768d13e3001ca1122a53360ddbf48449e7283dbb62cf7ce41151f253
04 R 7de7206b300eac21615fe28786e4b0bedf001264b63db81601ed5cb07a465247
05 R 61969805451a587b205c09c500297e31942e292144848ac4d035432503199f2d
06 L f570f98dab4f813dbae1f451dfd4d606378a22c73e85357c0cf6519cf2e44515
root 8143b7fe3a7c602de5728436685e9954ad897028c7ef13d379c72dccb60cd48f