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

METRO MANILA DEVELOPMENT AUTHORITY Award a ₱3.4M contract to PETT BUILDERSNational agencies

Transaction hash:

404efe7d99e70f5e106891bdd8aea3a65c12a9cf69802ce6ccb54bee2c9a835c

Status:

Included and unchanged

Block:

#2,754 3,259 blocks after it

Position in block:

Transaction 22 of 62

Award day:

Jun 2, 2016 (10 yrs 5 mo ago)

From:

METRO MANILA DEVELOPMENT AUTHORITY

To:

PETT BUILDERS

Value:

₱3,447,641.86

Project:

construction project

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

METRO MANILA DEVELOPMENT 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 #2,754 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)
METRO MANILA DEVELOPMENT AUTHORITY awarded it to PETT BUILDERS on 2016-06-02.
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 404efe7d99…9a835cnow …
2. Block Merkle root changed
stored 4a407c5113…7822adnow …
3. Block #2754 hash changed
stored 3a200becb4…99f57dnow …

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

leaf 404efe7d99e70f5e106891bdd8aea3a65c12a9cf69802ce6ccb54bee2c9a835c
01 R 426cfebafa304d2fe5bb59d30795f96089b2b86ad3812927c7081a2b85bd4df7
02 L 11d66a7045c2efdf8988a59e0762d83fea8357e6d140be13a57b59c7ae86e7cf
03 L 4a09c34359a581cbeee41d732b94fcc7e1077beca48900b643de6b1733ea6198
04 R 2ac51e390f88133eac53fd0f72105c7c1cbe3353eb4d1c9ebf52699e51aa9a26
05 L 2b1f8680666d2f3d83ea30e85163ff13544a6f8ecf78f6bec45ecd8eb23589ba
06 R e967f1fd74277fdd3adb6ad204ad09f9be75d38e87f4b7d94e4346269a13aa3d
root 4a407c51133c7e4b6a4a16a5d1f3a5dc762f0ad269dadc17da6a47a5517822ad