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 - QUEZON 1ST ED Award a ₱6.8M contract to TAN TAY LIM BUILDERS AND GENERAL CONTRACTORNational agencies

Transaction hash:

db0ae7fea91864fbfcc62f157c1a9f1abea44638c44878cba15a60a51c0cc07b

Status:

Included and unchanged

Block:

#2,754 3,259 blocks after it

Position in block:

Transaction 50 of 62

Award day:

Jun 2, 2016 (10 yrs 5 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - QUEZON 1ST ED

To:

TAN TAY LIM BUILDERS AND GENERAL CONTRACTOR

Value:

₱6,797,982.59

Project:

Construction of School Building

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - QUEZON 1ST 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 #2,754 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 - QUEZON 1ST ED awarded it to TAN TAY LIM BUILDERS AND GENERAL CONTRACTOR on 2016-06-02.
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 db0ae7fea9…0cc07bnow …
2. Block Merkle root changed
stored 4a407c5113…7822adnow …
3. Block #2754 hash changed
stored 3a200becb4…99f57dnow …

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

leaf db0ae7fea91864fbfcc62f157c1a9f1abea44638c44878cba15a60a51c0cc07b
01 R db853cc6042b22f2769eec1c60a76c1f0fa9ff5b77eaa22d03e6df36df63fad6
02 L 3369d639c4763741c3c350d537b068ca660c3929641978fcff78c8a55e7c1afa
03 R 359b125400b2b8659cafdc3bff69ab13ee0fffa0c835e5930113610e9d20f396
04 R d02faf8bd0489f6b88b7d0f002d5331deec6ef325a043c1def9169b77ac994e6
05 L 9552939fd5b45c04322bfd58f6e62cfe509ed6d4e11a2c0c4caae8399d47c8c5
06 L 0676c9ed4460d3fa0979025dd5b43cdd7769675b8945bf5ff448a2c8f1eda465
root 4a407c51133c7e4b6a4a16a5d1f3a5dc762f0ad269dadc17da6a47a5517822ad