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 - SOUTH METRO MANILA Award a ₱1.9M contract to ALE BUILDERS CONSTRUCTION & DEVELOPMENT CORPORATIONNational agencies

Transaction hash:

3a40ecd17b24dc3fb3a5bea7787aa6096216e794e3d75ec853e96553aebe844a

Status:

Included and unchanged

Block:

#1,506 4,507 blocks after it

Position in block:

Transaction 14 of 58

Award day:

Jul 13, 2012 (14 yrs 4 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - SOUTH METRO MANILA

To:

ALE BUILDERS CONSTRUCTION & DEVELOPMENT CORPORATION

Value:

₱1,949,396.08

Project:

INVITATION TO BID-12OH0093-94

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - SOUTH METRO MANILA

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 #1,506 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 - SOUTH METRO MANILA awarded it to ALE BUILDERS CONSTRUCTION & DEVELOPMENT CORPORATION on 2012-07-13.
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 3a40ecd17b…be844anow …
2. Block Merkle root changed
stored becc430e8e…773e6enow …
3. Block #1506 hash changed
stored ddc252783a…c3c369now …

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

leaf 3a40ecd17b24dc3fb3a5bea7787aa6096216e794e3d75ec853e96553aebe844a
01 R 3a78c28ea826d36c2864449062e3dc76bfd568f94923dddbdc5db83e27972b9c
02 L 8f42c1f86b63efa648f7ea370967c5bf0b2de3c6ef09e7b94da4595653cc1e99
03 L f7a5b3dc6c6f0eccabcddee4d3e91a99fc42195438a7c39e15fc3a80f09ae198
04 L a3b663c7395c9e213aff77ea97f464c4f191da821409fe8589b7c922239f576b
05 R bb98d668ab9439ec22bd35dd8a74cb8a3be94bf9db30c52f1082520e5da712b0
06 R bbf6a8a61edd3303d60bebf9a623ac54a7e39be152486e2dfea6216f8246a6f1
root becc430e8e0fedd33bc492f6b892d2b71cff0b724e77ab495495315ac7773e6e