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

NATIONAL HOUSING AUTHORITY Award a ₱22.1M contract to M.R. VARGAS CONSTRUCTIONNational agencies

Transaction hash:

ecb7d902f2be452a666e18dd59e6f78c8e2a5dae2b11241dc5ba6cfccf35de9f

Status:

Included and unchanged

Block:

#1,388 4,625 blocks after it

Position in block:

Transaction 52 of 60

Award day:

Feb 27, 2012 (14 yrs 8 mo ago)

From:

NATIONAL HOUSING AUTHORITY

To:

M.R. VARGAS CONSTRUCTION

Value:

₱22,112,638.14

Project:

Const. of 1 Unit 3 Storey 15-Classroom School Building at St. Matthew, Norzagaray, Bulacan

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

NATIONAL HOUSING AUTHORITY

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 #1,388 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)
NATIONAL HOUSING AUTHORITY awarded it to M.R. VARGAS CONSTRUCTION on 2012-02-27.
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 ecb7d902f2…35de9fnow …
2. Block Merkle root changed
stored a83d918bda…7dc3bdnow …
3. Block #1388 hash changed
stored 658fe30c5a…a11083now …

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

leaf ecb7d902f2be452a666e18dd59e6f78c8e2a5dae2b11241dc5ba6cfccf35de9f
01 R f2d8966c0c6a511b1eed74b2dce142726291e20bbc012a32182d2d02ae6744eb
02 R 9f587738486835fbec25b4c157e6b146f49bd6dabe329e22aac5ab4aa5aa6425
03 L 22b1645d2d84a0e223251c7835126cba73bde99a707bdb11f110b7bcd06f85dc
04 R 246c37328dc5ade2446f8d393da3f82ee623b36d9d96c269c796044bec02488f
05 L 2e2a9e756b16e8d01fdae7813e86d24e8c1f4d0b82e6c7f7f968f8a8c19de963
06 L f1b0cef9702b04e652eaf828b3851a9d42ad4236450d55b6ab5369ff63dd1227
root a83d918bda5cd99dc4b661cd39d1d97ce655ae735177cf2fa378653bca7dc3bd