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 - PALAWAN 2ND DEO Award a ₱494.7K contract to LEA & SONS TRADING AND CONSTRUCTIONNational agencies

Transaction hash:

ae1b4a442deda0d8a8c12ffb167ce577b079bd6e75ecbc5e2a0f4a09b5cb2124

Status:

Included and unchanged

Block:

#1,623 4,390 blocks after it

Position in block:

Transaction 30 of 46

Award day:

Nov 28, 2012 (13 yrs 11 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - PALAWAN 2ND DEO

To:

LEA & SONS TRADING AND CONSTRUCTION

Value:

₱494,708.45

Project:

Repair/Maintenance of Puerto Princesa South Road k0131+200-k0131+400, Sofronio Española, Palawan

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - PALAWAN 2ND 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 #1,623 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 - PALAWAN 2ND DEO awarded it to LEA & SONS TRADING AND CONSTRUCTION on 2012-11-28.
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 ae1b4a442d…cb2124now …
2. Block Merkle root changed
stored faa91c6cd9…4be55cnow …
3. Block #1623 hash changed
stored fa629733b0…1dc8e5now …

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

leaf ae1b4a442deda0d8a8c12ffb167ce577b079bd6e75ecbc5e2a0f4a09b5cb2124
01 R b0705f3408ff4b8466c0eb4c7f786b228b97965055a7d42c3b3b58e62b14e8db
02 L ac084663c8f4d708f79c0dd24ea0a82692c9b0eb6275c368503f86650f71a021
03 L ca33e3da117726797d8465ef0a326a80fab7b21f643636d55306fc1fafab8758
04 L 0121ddbe4af5920aeb716d5fec1eced3dd44b389a7998dbeb37d0c2071430cdc
05 L 6d0ed9d72de63c88c786be72f96342ad988532ddfe3b9463571fee8caf57c46a
06 R 64e325684f48f314aabe47b6b86c4c0502f77afebad95439ac05b833a19c7ccf
root faa91c6cd9c0015a09e10b0c6450329920041e7ed91cc881bb22d8acb04be55c