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 - LAGUNA 1ST ED Award a ₱43.5M contract to 4B CONSTRUCTION CORPORATIONNational agencies

Transaction hash:

d7ee1d4e902830d6a6a9e47ad640712a4c52a6a9ba88bad5b5a292180684cc7b

Status:

Included and unchanged

Block:

#1,355 4,658 blocks after it

Position in block:

Transaction 58 of 72

Award day:

Jan 19, 2012 (14 yrs 9 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - LAGUNA 1ST ED

To:

4B CONSTRUCTION CORPORATION

Value:

₱43,548,704.13

Project:

Clustered projects for the Rehabilitation/Reconstruction/Upgrading of Damaged Pavement of National Road (MFO-2) (Intermittent Sections) Rizal Bdry.-Famy-Quezon Road a.) K0086 + 216 to K0087 + 923 b.)

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - LAGUNA 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 #1,355 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 - LAGUNA 1ST ED awarded it to 4B CONSTRUCTION CORPORATION on 2012-01-19.
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 d7ee1d4e90…84cc7bnow …
2. Block Merkle root changed
stored 5d626ac0dd…e4eadcnow …
3. Block #1355 hash changed
stored 388e26304f…e60401now …

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

leaf d7ee1d4e902830d6a6a9e47ad640712a4c52a6a9ba88bad5b5a292180684cc7b
01 R d7ffb1236eb08bf0b2daa10c7b271039e3f71905244c665993043f6ff5d0242f
02 L 32e053633b1f749eecf1f6418fdfa87d4d3aef6581fff98db66466596fa577f6
03 R 2c39c0594f94fcf578f8d09ee7c0715e2be69c7e21e283e2cbd16a36eab32a9e
04 L 5ccaed2272e0ddcae8a87a53b97e64a622f05c45d59bb6d1de73aee42b01e144
05 L 2dfb1cff63ae34ce48d76a67730ff026b6bc0926aefe7fd458cabd6addea8c6d
06 L 2e0ff7eb3740fecaaf4b3fdceb8c1149e97cb6a136993c28ec941d322f19e15d
07 R 406529732009c16c989d4f98ed2f0a4c9d8560dfcf9d30bef9fc28242f5c39ff
root 5d626ac0dd4b34f1fda5e56236b5ca24189318f730323da44654b91cace4eadc