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 ₱2.0M contract to DAHL CONSTRUCTIONNational agencies

Transaction hash:

2578ecb050480ea7c5c256ed7f917a9ba9e0ddad285e9ed0537fa16d88a0b215

Status:

Included and unchanged

Block:

#2,042 3,971 blocks after it

Position in block:

Transaction 7 of 51

Award day:

Apr 3, 2014 (12 yrs 7 mo ago)

From:

METRO MANILA DEVELOPMENT AUTHORITY

To:

DAHL CONSTRUCTION

Value:

₱1,972,043.20

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 #2,042 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 DAHL CONSTRUCTION on 2014-04-03.
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 2578ecb050…a0b215now …
2. Block Merkle root changed
stored de6e8bab82…97abd7now …
3. Block #2042 hash changed
stored 01512283ef…053005now …

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

leaf 2578ecb050480ea7c5c256ed7f917a9ba9e0ddad285e9ed0537fa16d88a0b215
01 L 253f0a3131334263b34bfd8d7b14bad5921d25796e7e8332dd4e49e9ed0e7fb5
02 L ff010ce90e65e65d24049cd579e8c8116b284c516598a76cee55f23d459423d2
03 L db0f80ec399b2019ca4edd35f1dd8ce0038790b84fed3d3c447bb5c41116bd45
04 R 075e3c6e5ba5db9cad0a33429db60512307d7c9d9efe75b5e4e38fc661aabc2d
05 R a3ea5a2f6f2c2ede2727f83b5f6bd134a11e79814ebd63146717ed7dd319a168
06 R b4f167c8e4967e0a07901b65a825c98584575c4bbfd7a9ba5db6e4c592cf939f
root de6e8bab82a899137b6306462bf4d77e44fcfd85db9df492a05341272797abd7