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 TANAUAN, BATANGAS Award a ₱991.6K contract to GAWANATO CONSTRUCTIONCities

Transaction hash:

4a8d4d5a6afcc3bd10dbb0d22253dfc7e6c5ce8ecf831e99f8b311b63f9a1475

Status:

Included and unchanged

Block:

#2,399 3,614 blocks after it

Position in block:

Transaction 36 of 117

Award day:

May 6, 2015 (11 yrs 6 mo ago)

From:

CITY OF TANAUAN, BATANGAS

To:

GAWANATO CONSTRUCTION

Value:

₱991,644.86

Project:

Infra Projects 2015(1st qtr.)

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

CITY OF TANAUAN, BATANGAS

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 #2,399 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 TANAUAN, BATANGAS awarded it to GAWANATO CONSTRUCTION on 2015-05-06.
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 Tanauan 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 4a8d4d5a6a…9a1475now …
2. Block Merkle root changed
stored 97b700b440…9ce3fdnow …
3. Block #2399 hash changed
stored c766b76e72…3a4c3anow …

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

leaf 4a8d4d5a6afcc3bd10dbb0d22253dfc7e6c5ce8ecf831e99f8b311b63f9a1475
01 R 4b0239689c682cfb59597f89af8997f912804d189920165ef04ae13d1a319802
02 R dc5b521c0abe5fe034d218ec2b5c0bcf2f11f7533ac093b2de557f8cc01f5434
03 L 0f4195466be86481fbfc366ab18e9615412b2142993a28ad245da23367735743
04 R 193c540e7df576ada87c0356fb861e87aca88c9155fea8eb385663c886f70974
05 R 8b68536126034ec00e044e68c669d90208e6c4b3ab6e18bed1bc8c0b1716f5e5
06 L 7ffc667ba6ef08e2687896ced31b51b9377210c0fbe63c1e15aa189712a08fe1
07 R b8f6984929ea00169d3d56d1ef3b6bbb25dcbac372984333212d9ee21b480025
root 97b700b4403711bbf0f431007c3eac46412bbab0f50935018588c0ffc19ce3fd