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

MANILA INTERNATIONAL AIRPORT AUTHORITY Award a ₱20.1M contract to MARCPHIL CONSTRUCTIONNational agencies

Transaction hash:

b54441ba4aa671da9dff03cbe85446a7cd7af9a49b1a4b17129d506542e67a30

Status:

Included and unchanged

Block:

#2,044 3,969 blocks after it

Position in block:

Transaction 70 of 102

Award day:

Apr 7, 2014 (12 yrs 7 mo ago)

From:

MANILA INTERNATIONAL AIRPORT AUTHORITY

To:

MARCPHIL CONSTRUCTION

Value:

₱20,141,985.02

Project:

Repair of Deteriorated Waterproofing at NAIA T3

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

MANILA INTERNATIONAL AIRPORT AUTHORITY

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 #2,044 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)
MANILA INTERNATIONAL AIRPORT AUTHORITY awarded it to MARCPHIL CONSTRUCTION on 2014-04-07.
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 b54441ba4a…e67a30now …
2. Block Merkle root changed
stored 493960e181…e2e227now …
3. Block #2044 hash changed
stored 5638b400c0…e24b09now …

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

leaf b54441ba4aa671da9dff03cbe85446a7cd7af9a49b1a4b17129d506542e67a30
01 R b86cfff96798b0dff890925bc303906263caf3f9a46e9c3904db62b3a680e64f
02 L 72007124f3cf2f50649c68d6b743cdad5f317ed427486501e291e86a799a4ba8
03 L ca575ba55f5fa520eb6e20b64f2d38a7bf488578f9aa74267897a564aeff410a
04 R 73f28d1176aa413102be871367c37f5d10fa72f9760a050c0e9da4820ce22272
05 R 6d5c7f8656e81684b22770702f64099399a9158453cc14769e02a299249b64a2
06 R 8e387adf0df1889a8608b03754e00733bc844623a0762efff4ace3018bf93e73
07 L 23ea7bb2ce9017b2a3f537f164fedb38a4cc7897cf87a415537364df81a5ab20
root 493960e181fc345a8009cdf93636988973b9b9d6c94bed93d0cfae6367e2e227