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 LEGASPI, ALBAY Award a ₱486.1K contract to TWIN ACER BUILDERS AND SUPPLYCities

Transaction hash:

dc032ea08f8e25944c04309c442757a3e1911ecb1b1c87b3ce32b72b35f7e0b9

Status:

Included and unchanged

Block:

#795 5,218 blocks after it

Position in block:

Transaction 30 of 42

Award day:

Feb 9, 2010 (16 yrs 9 mo ago)

From:

CITY OF LEGASPI, ALBAY

To:

TWIN ACER BUILDERS AND SUPPLY

Value:

₱486,059.36

Project:

(small value procurement) Furnishing of Labor, Materials and Equipment for the Proposed Repair/Improvement of Drainage Canal at Renilisan Street to Yawa River, Bonot Legazpi City

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

CITY OF LEGASPI, ALBAY

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 #795 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 LEGASPI, ALBAY awarded it to TWIN ACER BUILDERS AND SUPPLY on 2010-02-09.
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 dc032ea08f…f7e0b9now …
2. Block Merkle root changed
stored 8b2d350f25…47e1e8now …
3. Block #795 hash changed
stored 1a5f701149…7e95e5now …

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

leaf dc032ea08f8e25944c04309c442757a3e1911ecb1b1c87b3ce32b72b35f7e0b9
01 R e23099fac9337659016c1eb6d3cd27f5e64895219b5f84e91540201cbcd917ee
02 L 881427c88bfca2c7e65cb5bd1a19e4dc0bd82de702e62222567cb8e0dd798b04
03 L 8d7153942915d46c6026bcd7ae08ff374aeeac4a31582c656a24d8c846372ac9
04 L df2607b5dde28b819ce8650bf0c10e67dc09f7d0103617930ab71a293e432fff
05 L e54298a726a91d4da22971fa5f087e057f7add8aa482fd4e6f693ace75a94c0a
06 R 4e2241e8b591118d253b3620bb1394cc5d4e9f19f55fa4241d4c2492ed809909
root 8b2d350f25656ae0b1503abccaaec83b36e8f164118059adec84ba949447e1e8