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

PHILIPPINE SCIENCE HIGH SCHOOL - REGION II Award a ₱7.2M contract to GERRA CONSTRUCTIONNational agencies

Transaction hash:

dae112477884e15df30ade077a9e544ba03a22519923642c7e5c5da7e1f7b9c1

Status:

Included and unchanged

Block:

#720 5,293 blocks after it

Position in block:

Transaction 4 of 6

Award day:

Oct 28, 2009 (17 yrs ago)

From:

PHILIPPINE SCIENCE HIGH SCHOOL - REGION II

To:

GERRA CONSTRUCTION

Value:

₱7,197,572.87

Project:

IAEB FOR RETAINING WALLS/ RIPRAPS, ROAD NETWORKS, WATER SUPPLY AND GROUND LEVELING

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

PHILIPPINE SCIENCE HIGH SCHOOL - REGION II

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 #720 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)
PHILIPPINE SCIENCE HIGH SCHOOL - REGION II awarded it to GERRA CONSTRUCTION on 2009-10-28.
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 dae1124778…f7b9c1now …
2. Block Merkle root changed
stored f79ef25edb…a36d86now …
3. Block #720 hash changed
stored 59369ab322…47d08dnow …

Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (3 steps)

How this one record is tied to the block's Merkle root, without needing the other 5 records. Each step hashes the current value together with the sibling shown.

leaf dae112477884e15df30ade077a9e544ba03a22519923642c7e5c5da7e1f7b9c1
01 R e674615c424f402748e3365b82de56c4fc60c607b69af0e38b8da9c5a0ebbd3a
02 R 3fde0acac1e01b49b122107e457cadcb8992009624928cfb9c53e5903b81764e
03 L 1150a65661b17d3653dcc9121a08ebbdb8b6097885a1b7ee4f06cec00166afc5
root f79ef25edb73c0cb66922d4c52742a071b412576f3d1f8341a50819007a36d86