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 ₱683.5K contract to MEDARDO CONSTRUCTION & SUPPLYNational agencies

Transaction hash:

b815b8cf42b020bfd6fc0a2c5bab593891f88be8112ebc1f40f4db0392dfa68b

Status:

Included and unchanged

Block:

#1,617 4,396 blocks after it

Position in block:

Transaction 38 of 58

Award day:

Nov 22, 2012 (13 yrs 11 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - PALAWAN 2ND DEO

To:

MEDARDO CONSTRUCTION & SUPPLY

Value:

₱683,528.25

Project:

Construction of Isugod National High School, Quezon, 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 #1,617 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 MEDARDO CONSTRUCTION & SUPPLY on 2012-11-22.
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 b815b8cf42…dfa68bnow …
2. Block Merkle root changed
stored 2a81da1fef…209739now …
3. Block #1617 hash changed
stored e2ac8ef6bf…ad589bnow …

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 b815b8cf42b020bfd6fc0a2c5bab593891f88be8112ebc1f40f4db0392dfa68b
01 R c2ecc88a9a4fbd45a7d3cbe614388c5334d2d1366688a36bab119c9bc07b214d
02 L a7f78e9b0ddded4228a06cca483575a3af8f3d9726162bcad67c30b1f49aaa18
03 L 1703e82df6be296ef44cdffe69ad4c0b2a89cbf19072a4a19d579bb90fe9689e
04 R 8599fdba7f3a37859ae09aba47f7310493fafa539d52388617b2fa5a4842f1c2
05 R 9092734a44dd1990f176373798fdda6818a923a724912e914054876299363fa7
06 L 3ca35838a51f187098fecf7c0241270de6531f5d6b4af332d8d5c44dde51324c
root 2a81da1fef2bb5fefe4ed5a66ececed567aa6b32c9f86d96f20cafe4c3209739