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 - EASTERN SAMAR DEO Award a ₱152.5K contract to TUBIGAN BUILDERSNational agencies

Transaction hash:

f3d7bdb5e0725cb05d48ef786fae89e0a49f586037f834a3c3c7b6176fd7c5e9

Status:

Included and unchanged

Block:

#2,823 3,190 blocks after it

Position in block:

Transaction 157 of 162

Award day:

Aug 16, 2016 (10 yrs 2 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - EASTERN SAMAR DEO

To:

TUBIGAN BUILDERS

Value:

₱152,514.78

Project:

16IB0223(SVP) - Construction of DPWH Materials Rec

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - EASTERN SAMAR 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 #2,823 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 - EASTERN SAMAR DEO awarded it to TUBIGAN BUILDERS on 2016-08-16.
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 f3d7bdb5e0…d7c5e9now …
2. Block Merkle root changed
stored 493abb145d…ed9572now …
3. Block #2823 hash changed
stored ad194db71e…23e8e1now …

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

Merkle proof (8 steps)

How this one record is tied to the block's Merkle root, without needing the other 161 records. Each step hashes the current value together with the sibling shown.

leaf f3d7bdb5e0725cb05d48ef786fae89e0a49f586037f834a3c3c7b6176fd7c5e9
01 L f30b621dc964a9655e38f1dd1e3a4961bcddbf2337bcc59d47c48435287d21b3
02 R c899211a97ca1f783bf1b8cde630bcf01a79fbd1f4b4c43fb36562bca3611074
03 L 4ce85c111eaaacb99e6a46f3a0b401870e0e4c6395ef65f46e5afdcacaa45feb
04 L 8bca8e804fd28844deaaeab47c372bddaf4a99787856fb8e6b10e1e26c717b46
05 L 67b4930d8c68cb73764444775677bc0232b124da6b80a41b104c0fefa2b99c5c
06 R 15fa48c9761b1bf82f4bb05e8e92e1a6a0687da6c1f3114b64d050ff1b525c42
07 R 5fa83db3a57bed3355968a5a6697c67fb3a88b514703c2e38a72ab85f4993a38
08 L 61ed4aeb37fb7b514fab65888e7976b945a61e671d135f1ce653dafab9638025
root 493abb145d5255eb990854c1563905a1b2ba06386027eee3e9692c5f84ed9572