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

CITY OF TAYABAS, QUEZON Award a ₱2.0M contract to R.A MENDIOLA CONSTRUCTION & DEVELOPERCities

Transaction hash:

99fc8bf2f4c2020bc3c8c369f58c90a21a7238140f58b568802742b909ae814f

Status:

Included and unchanged

Block:

#1,621 4,392 blocks after it

Position in block:

Transaction 19 of 35

Award day:

Nov 26, 2012 (13 yrs 11 mo ago)

From:

CITY OF TAYABAS, QUEZON

To:

R.A MENDIOLA CONSTRUCTION & DEVELOPER

Value:

₱1,961,224.48

Project:

PROJECT NO. 148 – Construction of Multi-purpose Building (Phase 1) at Brgy. San Isidro Zone 1 to 4

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

CITY OF TAYABAS, QUEZON

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 #1,621 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)
CITY OF TAYABAS, QUEZON awarded it to R.A MENDIOLA CONSTRUCTION & DEVELOPER on 2012-11-26.
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)
COA's CY2024 audit of City of Tayabas gave a "qualified" opinion on its financial statements (not specific to this contract).
Partly
Open

1 of 8 documents found, 1 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 99fc8bf2f4…ae814fnow …
2. Block Merkle root changed
stored f4ea420d93…82cfbbnow …
3. Block #1621 hash changed
stored 8134968a7d…6d21d4now …

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

leaf 99fc8bf2f4c2020bc3c8c369f58c90a21a7238140f58b568802742b909ae814f
01 L 99c05057e8f236dfd7cf48590afbc2eab65f586e3cd167eb1ce0147e9145c91a
02 L 34f4e18f24e9e585ed956af705b0779173f435abdc75a49caec7b15c10d62324
03 R 760b5fd3a9e0fe53fd354a7eb8c8e27a7de78d74983a1d240963715e04676248
04 R 3bff82c0d84188916db8a0bab2ad04ab385d328aae8620d48b44468cd742233e
05 L 34b2571f9c38e5efcc7d5195a57ceecd54dcc3f05ef6b99422b72a7a68a243de
06 R 4daeefa83c3bf28d31321a37a5bdd84c3b00d24f6cf7cf62a819854c8866bd7d
root f4ea420d93339b4187925fb8dc0d2a294b482b9aa72c51b14077ea952782cfbb