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

CIVIL AVIATION AUTHORITY OF THE PHILIPPINES - AREA CENTER XI Award a ₱2.4M contract to ETP BUILDERSNational agencies

Transaction hash:

fcbfa9c4c0e337d3152eec512dc5d6a82fe7da0e216df7be077d8da4894d261b

Status:

Included and unchanged

Block:

#5,985 28 blocks after it

Position in block:

Transaction 49 of 50

Award day:

Oct 9, 2025 (1 yr 1 mo ago)

From:

CIVIL AVIATION AUTHORITY OF THE PHILIPPINES - AREA CENTER XI

To:

ETP BUILDERS

Value:

₱2,400,138.85

Project:

BAC 85-2025-02

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

CIVIL AVIATION AUTHORITY OF THE PHILIPPINES - AREA CENTER XI

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 #5,985 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)
CIVIL AVIATION AUTHORITY OF THE PHILIPPINES - AREA CENTER XI awarded it to ETP BUILDERS on 2025-10-09.
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 fcbfa9c4c0…4d261bnow …
2. Block Merkle root changed
stored 365f0075c3…5b2b30now …
3. Block #5985 hash changed
stored 7e1a15af7f…80f7a3now …

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

leaf fcbfa9c4c0e337d3152eec512dc5d6a82fe7da0e216df7be077d8da4894d261b
01 L f6492bda36b961d9be65a1152e0c788ca1f7ba41e74eb2b986a6d99aa40dc1d0
02 R f8d1864a0afe1e996971b2d3be1961e7c90312242bc399d2fa228cff9224c330
03 R e7767198bc7c9d90fbc4c86a406f1dc7288a68783242f8e9a0a9c609c1b4125f
04 R b66279e053217dc03a3729b6bb07e7c18049d82731b286b3330c5be0e7ba30fe
05 L 0730617a23ef3eb241ce5945fb4e4922a2b122a9c3ec3b49692b602f5a9451ee
06 L 30ef54716dbb859cfc9dd68f2e3e3724339370dec30e1eff42e0e753b479823f
root 365f0075c3d2914361b4faa44ecf90fa5f5b591f8279048d990604f9db5b2b30