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 - ILOCOS SUR 1ST DIS Award a ₱2.2M contract to RAMSA CONSTRUCTION AND SUPPLYNational agencies

Transaction hash:

7f1e5adaa2d39a17841a356587c8fec9eef9bc7d719a51dd87b90c21a068d3b3

Status:

Included and unchanged

Block:

#814 5,199 blocks after it

Position in block:

Transaction 35 of 70

Award day:

Mar 5, 2010 (16 yrs 8 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - ILOCOS SUR 1ST DIS

To:

RAMSA CONSTRUCTION AND SUPPLY

Value:

₱2,177,293.44

Project:

Construction of School Building (Phase I), Nagsangalan Elementary School, Brgy. Nagsangalan, Vigan City

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - ILOCOS SUR 1ST DIS

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 #814 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 - ILOCOS SUR 1ST DIS awarded it to RAMSA CONSTRUCTION AND SUPPLY on 2010-03-05.
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 7f1e5adaa2…68d3b3now …
2. Block Merkle root changed
stored c19cb07e35…497ecanow …
3. Block #814 hash changed
stored b4c7ea13e5…ff9a94now …

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

leaf 7f1e5adaa2d39a17841a356587c8fec9eef9bc7d719a51dd87b90c21a068d3b3
01 L 7df1db1538fab59835aeff5fc995323fb1725a608b32dfc807366e62287d8a13
02 L dbb2faf10ae9530326af37ad69f8c9b2a9eb392a51f35101823f00bf0f0e0301
03 R e73ab08411e95d970e0d9f372da8c25dd8aea5c714f1ccc9028296751fda09c5
04 R 46ba9d721606c20b961118128517f5dc6c1bbd57d9a6e96d1f63538e1863b4ce
05 R 7290b9b7d0f3c8d8b8456dc995cd4be67cbac869f439b970b25ec3c2a39af068
06 L 06dcd0a169af2569fb6b5a6716780671de24bc354da65f6e67b5f42f7abcb9da
07 R ac8c04ff2561b301fe41e907f0b46cf2ba45bf9854d6ebe7131533dfbd5d544d
root c19cb07e35a2a7bba523cbe8d29edcec87ddfdfe5ec7f550469377c40e497eca