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 - MM 2ND ED Award a ₱2.9M contract to BLACKRAM BUILDERS, INC.National agencies

Transaction hash:

eea9c57efb806af6de36084bfc328b20dede2133c3997b1f52f76bffc0b1e7d2

Status:

Included and unchanged

Block:

#1,348 4,665 blocks after it

Position in block:

Transaction 50 of 53

Award day:

Jan 12, 2012 (14 yrs 10 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - MM 2ND ED

To:

BLACKRAM BUILDERS, INC.

Value:

₱2,925,648.00

Project:

Installation/Application of Lane Line Pavement Markings along Dr. A. Santos Avenue, Kaybuboy Creek to San Antonio Valley II Parañaque City, Metro Manila

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - MM 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 #1,348 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 - MM 2ND ED awarded it to BLACKRAM BUILDERS, INC. on 2012-01-12.
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 eea9c57efb…b1e7d2now …
2. Block Merkle root changed
stored a5a97919ea…631d6enow …
3. Block #1348 hash changed
stored b4ab70e11c…00b9aenow …

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

leaf eea9c57efb806af6de36084bfc328b20dede2133c3997b1f52f76bffc0b1e7d2
01 R f23b59f490860e210be8b8d6e71d4aaff36fa3a701d70bfeeb764ef343e7cc37
02 L af1e58920a7100928200dd46264846caf1e44bf583f4d1bb8cc36a766f0f316d
03 R 221d843b72f1cb2fb6c3767d8e591dfa20ea39e5e4bfdfc2428bc1356dea33b3
04 R 5deec56beb1e71f9eba6f2be2e3cb7e27c869cb941d6ee12d99705280f3ea728
05 L bb6030851a4855918e434f9bf7d3b51d328d59b35abc585981123128d4a2b80f
06 L e930ff7846487bcacc2c87aa68bef681b5905c828887b2ca6653da564ae457fd
root a5a97919ea25b84a0b970f9395abb5c46f44cdc86ead938b44c32635f2631d6e