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 - REGION VII Award a ₱65.2M contract to VICENTE T. LAO CONSTRUCTIONNational agencies

Transaction hash:

1691b408f99634fbffdfdc743e965dc3e5d647d2424bf3b2736b6dd87273b0a7

Status:

Included and unchanged

Block:

#1,998 4,015 blocks after it

Position in block:

Transaction 9 of 62

Award day:

Feb 12, 2014 (12 yrs 9 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION VII

To:

VICENTE T. LAO CONSTRUCTION

Value:

₱65,167,171.00

Project:

13H00047

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION VII

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 #1,998 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 - REGION VII awarded it to VICENTE T. LAO CONSTRUCTION on 2014-02-12.
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 1691b408f9…73b0a7now …
2. Block Merkle root changed
stored 7cd837cdd8…630bcbnow …
3. Block #1998 hash changed
stored 507f598107…4ae853now …

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 1691b408f99634fbffdfdc743e965dc3e5d647d2424bf3b2736b6dd87273b0a7
01 L 132e2842d0e7fa94c1d574441e0c38d0838793b0cb622e30f0a4b992f6142407
02 R a8ac00d9582b9eb7b727ae974ad4adc5e604210aa3b1ceddb8c45966cbf6789d
03 R 56bd4846008fe6418364c2631970a654f567114f859ff4325b21e6aafbac005e
04 L c353c6537b4760dadb19c013073d1dd06632314f35dee52baf7590b59eddcf98
05 R 8a1f6d03b130ea49b417f1bb28d320d7313237a88ff8525f20f2e5101970bbc4
06 R fc6a9b1758d5d81462262b1daf090e65dd6b3c6e40e274f13316398628d318ec
root 7cd837cdd891e84439b5e1111b9993f350dbb01a4b48758b81e99740f0630bcb