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 IVAHRICK CONTRACTORSNational agencies

Transaction hash:

b6b9979e52c281c71ea83de296c5114d44e61ed0d0dd54b274fa4a2e0db946ce

Status:

Included and unchanged

Block:

#2,024 3,989 blocks after it

Position in block:

Transaction 64 of 102

Award day:

Mar 14, 2014 (12 yrs 8 mo ago)

From:

METRO MANILA DEVELOPMENT AUTHORITY

To:

IVAHRICK CONTRACTORS

Value:

₱1,981,181.90

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 #2,024 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 IVAHRICK CONTRACTORS on 2014-03-14.
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 b6b9979e52…b946cenow …
2. Block Merkle root changed
stored 1a46f03f8d…3aca82now …
3. Block #2024 hash changed
stored e4a7f9bbd4…91ee46now …

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 b6b9979e52c281c71ea83de296c5114d44e61ed0d0dd54b274fa4a2e0db946ce
01 R b73a035f9a17b7c2ab56f7c12b98d47c633eb3e5fa6fd0de7d6a2abf197954aa
02 R 1b84318b3f52af53acfc72c9eef789b811e20da25d71d567dda413cad552420f
03 R ef067e377dca97ef7701967c9477df184d6ce694caf43ab37800459686061e78
04 R 4e5991b0b63513a2435b27318f11996c4e2b9964074eddadc60543e6474a01ac
05 R d0a846367698ff8274252aeeda330daa8bbbf8da16a7b0cc64ddc2ee13013300
06 R 0ef404c7e090d4cf039f0844bbba872b4f56334fd7fc7dc503cb13697c68ca73
07 L c6f4c964fe1d42333adcae4eafbec6d08557d5ac64bc860db47c3fb29a2b4fde
root 1a46f03f8d79204a7ed456ffd20abf3ee647c282fa474715636aeb89373aca82