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 ₱1.3M contract to MIGGS CONSTRUCTION AND SUPPLYNational agencies

Transaction hash:

e668c3e76b5de2ab6d9c0ea2876218e5c7de8adc2e07f2da00689b05aa8e2fe2

Status:

Included and unchanged

Block:

#1,308 4,705 blocks after it

Position in block:

Transaction 29 of 34

Award day:

Nov 29, 2011 (14 yrs 11 mo ago)

From:

METRO MANILA DEVELOPMENT AUTHORITY

To:

MIGGS CONSTRUCTION AND SUPPLY

Value:

₱1,283,460.56

Project:

1.Proposed Drainage Improvement along Victory St., Brgy. Tatalon District IV, Quezon City

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 #1,308 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 MIGGS CONSTRUCTION AND SUPPLY on 2011-11-29.
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 e668c3e76b…8e2fe2now …
2. Block Merkle root changed
stored a7e2bfd496…17ad51now …
3. Block #1308 hash changed
stored ecfd60e280…863b2fnow …

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

leaf e668c3e76b5de2ab6d9c0ea2876218e5c7de8adc2e07f2da00689b05aa8e2fe2
01 L e62c94ff6160ad7f2d9e6f40fdb8f55944427642c803d81e1245604493edf64d
02 R 8ce7c051ea8c7a9c2c07cb171f776c4e116f215f62d11fb86d3e8a8fb2ea95b3
03 L 87560f6ca9a59314444508a8b2d5ef595cf219751257e24e80d0cce83ac91fba
04 L a64ebe79b9bbdef4b706967763051e64781b535e27b6e0b2e7423cf38e7f6017
05 L 98af630f354ba2193ac8c575177d817eff5652de15a4d72ea27a39244bc6f47f
06 R 24c8f19774e529480bb007a89ff94bf3b0c54f5e0dc31e27fde7ecd804cd1a1f
root a7e2bfd496733364d8b0ba55e67e14b6c2394b7f1153bcb2b4144c2a5b17ad51