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 ₱24.1M contract to R.C. TAGALA CONSTRUCTIONNational agencies

Transaction hash:

7f05d4ecb1bcbc8964de68e3d5a5a731563d6ccb861e350902a9c85c9b59b7e9

Status:

Included and unchanged

Block:

#1,364 4,649 blocks after it

Position in block:

Transaction 40 of 81

Award day:

Jan 30, 2012 (14 yrs 9 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - PALAWAN 2ND DEO

To:

R.C. TAGALA CONSTRUCTION

Value:

₱24,050,039.56

Project:

Upgrading of Puerto Princesa South Road (PPSR), K0077+000-k0078+723

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 #1,364 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 R.C. TAGALA CONSTRUCTION on 2012-01-30.
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 7f05d4ecb1…59b7e9now …
2. Block Merkle root changed
stored 94b296f2e6…917a6anow …
3. Block #1364 hash changed
stored 786c3adb16…aefec3now …

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

leaf 7f05d4ecb1bcbc8964de68e3d5a5a731563d6ccb861e350902a9c85c9b59b7e9
01 R 873895a2aade39597814dfff40fdf9ca2587d3ddbcd10f90b8151cc3bcc31990
02 R 077f6ac121e8a426c4b625d3607308eae57a6f9037762d130c04940b0580e30f
03 R f84bdf11af0e6fdcefa992269860559c19de9fd49423112961b17ccf144692c5
04 L 84a3b5452427dc57bc0ccf9afdbf21fe600b229d93f47bfb246fed8bd46bbaff
05 R 5eb6f3d721e3c7cb2a30faeaa8e11a086a3f24f20c2af6dac906d11ebc536436
06 L b0b814cfca048a4c953ebbf420387c2aaebc8c209b8df59b0043c90000b84d57
07 R 5d6aa2f65cfcdcf7815559747b48ddca2901d3406124be8e9bc4531009e20051
root 94b296f2e6e567f95ae528279382bdd695c20fcc4b7ed15419cad2d4c8917a6a