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 - BULACAN 2ND DEO Award a ₱1.9M contract to ALPHA & OMEGA GEN. CONTRACTOR & DEVELOPMENT CORP.National agencies

Transaction hash:

1aa14a82ccefd5fbdda44b63dd67e32a5ec6b0cc75e5b223516fbdef4ef8d9b9

Status:

Included and unchanged

Block:

#3,371 2,642 blocks after it

Position in block:

Transaction 2 of 21

Award day:

Mar 24, 2018 (8 yrs 7 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BULACAN 2ND DEO

To:

ALPHA & OMEGA GEN. CONTRACTOR & DEVELOPMENT CORP.

Value:

₱1,919,105.90

Project:

18CD0173 Rehabilitation of Road, Barangay Malibay

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BULACAN 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 #3,371 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 - BULACAN 2ND DEO awarded it to ALPHA & OMEGA GEN. CONTRACTOR & DEVELOPMENT CORP. on 2018-03-24.
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 1aa14a82cc…f8d9b9now …
2. Block Merkle root changed
stored fb71429dd9…8e2f30now …
3. Block #3371 hash changed
stored 8383faa6ac…27dec0now …

Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (5 steps)

How this one record is tied to the block's Merkle root, without needing the other 20 records. Each step hashes the current value together with the sibling shown.

leaf 1aa14a82ccefd5fbdda44b63dd67e32a5ec6b0cc75e5b223516fbdef4ef8d9b9
01 R 1cdacf6f0bd55c931e5ccbffaeb91253fe9d6c87051a7a337b12cfb88db1b029
02 L b8938b635154c4294ba08554aeb438dd6cc73319b8427e34948a2c18af6bd091
03 R 5537ce46ba694462afefe88c7c8adfbf2fc85f47a8f5145fcf3b789fe2d62eb3
04 R bb497a101d050c7ca6b4b71e11c116e313bad17e5ea5c9458a54d1d65d45b3dd
05 R 3923e43b3bf0df31414b1646ce2c4cca1e927aba5872b36102b584edf52e4a0e
root fb71429dd91ef82e6f049f1a367454764d9f0b055fd737391c652236d08e2f30