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 - LAGUNA SUB-DEO Award a ₱13.1M contract to REVERE CONSTRUCTION & SUPPLY - LAGUNA BRANCHNational agencies

Transaction hash:

eb8b4148bcc78fbf8f3cd0e47b0fcdeae8285ce53660049a6705a5e15c6bf30e

Status:

Included and unchanged

Block:

#1,158 4,855 blocks after it

Position in block:

Transaction 44 of 47

Award day:

Jun 3, 2011 (15 yrs 5 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - LAGUNA SUB-DEO

To:

REVERE CONSTRUCTION & SUPPLY - LAGUNA BRANCH

Value:

₱13,100,644.21

Project:

Invitation to Bid

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - LAGUNA SUB-DEO

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 #1,158 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 - LAGUNA SUB-DEO awarded it to REVERE CONSTRUCTION & SUPPLY - LAGUNA BRANCH on 2011-06-03.
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 eb8b4148bc…6bf30enow …
2. Block Merkle root changed
stored 8dce7f70b7…c0e2a6now …
3. Block #1158 hash changed
stored 4f40eda1dd…39c5e4now …

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

leaf eb8b4148bcc78fbf8f3cd0e47b0fcdeae8285ce53660049a6705a5e15c6bf30e
01 R eda69d2ee77ffc223469b0e866a94ae744b6fa621a1d5e8c3e184e34af91f22c
02 R 269890db1e0ddb9dc84ea2a2d9d370d1688e332c26ed86c1c2603c34c4bb13a9
03 L c952e0751f7fadb43467fef8fcbc2718f053765e97d98ec0d9f6dc86060b1494
04 L 77c624f89fc9bc2a60af3bd9f149377304d481b16c19866e9d7675f28d874683
05 R 78e60c546d6cbf7ce5a70d1463e71aeb3400ed353d849e460611d1ebe18a21ee
06 L e0b253d14f6049408839292579d76cb647bc78694384e03f3f090c74b647e54f
root 8dce7f70b72e2ee117eeff39cfe910621e5e1d36afa8bf75b47ed8ceddc0e2a6