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 ₱5.0M contract to RNN CONSTRUCTION CORPORATIONNational agencies

Transaction hash:

ffcef52bc367ce1061ce70cffdbee3b82ee00ddb104abe3ff9624dd588a5abe1

Status:

Included and unchanged

Block:

#1,768 4,245 blocks after it

Position in block:

Transaction 56 of 57

Award day:

May 31, 2013 (13 yrs 5 mo ago)

From:

METRO MANILA DEVELOPMENT AUTHORITY

To:

RNN CONSTRUCTION CORPORATION

Value:

₱4,980,730.78

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 #1,768 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 RNN CONSTRUCTION CORPORATION on 2013-05-31.
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 ffcef52bc3…a5abe1now …
2. Block Merkle root changed
stored 949fa31901…af00ebnow …
3. Block #1768 hash changed
stored 98589795df…934236now …

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

leaf ffcef52bc367ce1061ce70cffdbee3b82ee00ddb104abe3ff9624dd588a5abe1
01 R ffcef52bc367ce1061ce70cffdbee3b82ee00ddb104abe3ff9624dd588a5abe1
02 R 4e003a57093dcf9456ecf44a37120bb279f5580eae44e03c8f0d27ee1fe24104
03 R a5c4973a63f302e6729fe01c1c7abc6b733b2a422d785afce062ba2b752d1bac
04 L 09266fc552a23a5aedc1ee45edc24a3434b5646625a2868ecab63396a877f591
05 L 7913ed185cd04dfe788859f0db95b1a2a6bbe7a3303227afbc6811327e54b3f3
06 L 0d4925d83aae32d46ad9c9d5d141588b50d6d0b55047079023cce1fee5f62c40
root 949fa319010d6b9e66d7de07f0b71dd89513c87ca110d75ed9b1120119af00eb