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 ₱1.5M contract to TUCHAR CONSTRUCTION CORP.National agencies

Transaction hash:

33fb7d426e09d9cdde5ab6dabdab30d3b48c4f28d04ec5a9a832bcd9a576be6a

Status:

Included and unchanged

Block:

#1,342 4,671 blocks after it

Position in block:

Transaction 10 of 52

Award day:

Jan 5, 2012 (14 yrs 10 mo ago)

From:

METRO MANILA DEVELOPMENT AUTHORITY

To:

TUCHAR CONSTRUCTION CORP.

Value:

₱1,483,893.49

Project:

1. Proposed Construction of Drainage System along Riosa St., Zytex Riosa Subdivision Brgy. Pasong Tamo, Dist II, 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 #1,342 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 TUCHAR CONSTRUCTION CORP. on 2012-01-05.
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 33fb7d426e…76be6anow …
2. Block Merkle root changed
stored a0bf4aa22b…84d42bnow …
3. Block #1342 hash changed
stored 71a4289b80…972c82now …

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

leaf 33fb7d426e09d9cdde5ab6dabdab30d3b48c4f28d04ec5a9a832bcd9a576be6a
01 R 37ff9f99b728fddfc3dff0bddc66701793768804f085d09214a174f37ee40309
02 L 2a0730f6e58a32361dc4949aa9e2b6e329e059aaf21619e7d0b1f7d59c6ec09c
03 R 7dcf1f9084ae2078cafa5534295f308a9261d219f34851c1dc299a8ffe2d322d
04 L 32624fbb21a6eb92e625c901504dae5e1d1f60cb8f648e076145c4dab7c8c746
05 R 6a1bf4292b7a42815eec4cfd88ffe995f72d05967c6dd71428dba3721a912fdc
06 R 6ede614ebd1d994d69052e9a26443bd4ef13e6c0305d10352c2768c354949a7a
root a0bf4aa22b058e79067d9cbbe57921496e71805c52719c0a327e735d6f84d42b