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 - MM 2ND ED Award a ₱963.4K contract to DAHL CONSTRUCTIONNational agencies

Transaction hash:

9f5a68b81b0a2cf8fec6940ea0e0abc965fb7f0e00ec6217db2b5cead5dc02c6

Status:

Included and unchanged

Block:

#1,455 4,558 blocks after it

Position in block:

Transaction 54 of 87

Award day:

May 17, 2012 (14 yrs 5 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - MM 2ND ED

To:

DAHL CONSTRUCTION

Value:

₱963,403.45

Project:

Completion of Multi-Purpose Building at Libjo Barangay Sto. Niño, Parañaque City, Metro Manila

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - MM 2ND ED

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 #1,455 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 - MM 2ND ED awarded it to DAHL CONSTRUCTION on 2012-05-17.
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 9f5a68b81b…dc02c6now …
2. Block Merkle root changed
stored 590cbad2cf…cf9305now …
3. Block #1455 hash changed
stored eba4bf5874…7cbdf5now …

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

Merkle proof (7 steps)

How this one record is tied to the block's Merkle root, without needing the other 86 records. Each step hashes the current value together with the sibling shown.

leaf 9f5a68b81b0a2cf8fec6940ea0e0abc965fb7f0e00ec6217db2b5cead5dc02c6
01 R 9f950b33f52cafd45fa92f6d6d342aec435995eaacd6153312658bf3c0b86c33
02 L 1e4b8bcea5605b929d58df69136d229ec6c9cd13d47012c89402d8d4fa8b32d9
03 L f3c25d33d56752bd1588d53e14252ace232fb8d3860d66fce0d43f5f0cf75117
04 R e240a98ed38c90cd2c7c4fe305c66f9946f27b15a25727167e05011b83225688
05 L 2282bcadaef3ab4171b3f80957f2ca566931e85fe0d981401ddbfa35463571ed
06 L 4592bfd15690c872d8cd6ac1bec48db70f401a3bfb8e3428a6023213db549292
07 R 9cb7afdbb7dd63d99f8ffcb524ca003fe614b9fad615c88b5e361b6d39c3a068
root 590cbad2cfababd3d26913168cd9cea959cfb80def6132437649aefd8acf9305