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

DPWH-LAGUNA II DISTRICT ENGINEERING OFFICE Award a ₱2.9M contract to C.B. TAMPENGCO CONSTRUCTION & SUPPLYNational agencies

Transaction hash:

fdc2386e043ca6ca6a6750a7b06faffed3a365ebbab650863060f52b42334341

Status:

Included and unchanged

Block:

#1,071 4,942 blocks after it

Position in block:

Transaction 17 of 18

Award day:

Feb 14, 2011 (15 yrs 8 mo ago)

From:

DPWH-LAGUNA II DISTRICT ENGINEERING OFFICE

To:

C.B. TAMPENGCO CONSTRUCTION & SUPPLY

Value:

₱2,883,685.00

Project:

ITBP No. 2011-02(11DI0009) Construction of multi-purpose bldg. at Brgy. Balibago, Sta. Rosa City

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DPWH-LAGUNA II DISTRICT ENGINEERING OFFICE

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 #1,071 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)
DPWH-LAGUNA II DISTRICT ENGINEERING OFFICE awarded it to C.B. TAMPENGCO CONSTRUCTION & SUPPLY on 2011-02-14.
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 fdc2386e04…334341now …
2. Block Merkle root changed
stored 8b51af31bc…65af08now …
3. Block #1071 hash changed
stored da6b90785d…1349a6now …

Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (5 steps)

How this one record is tied to the block's Merkle root, without needing the other 17 records. Each step hashes the current value together with the sibling shown.

leaf fdc2386e043ca6ca6a6750a7b06faffed3a365ebbab650863060f52b42334341
01 L f6b1bc0cc6ab13115b72befa2d5b357b5c68289cba7f0a20b61c76d4951b145b
02 R f9b88c246ac5372c8f014e95a90cd6ca7ff60ac85f608883fed35a6cdd03aabc
03 R 069b0e6243b20632919ce89e5a7d9828d98a07ff8535abc212513a4e8c957a00
04 R c6c03353e73b7a1f57c8a1aaf9d8af09bc1ad8773d70b8d1dcb7293e252e93e0
05 L f7fcf081e15eb641a180c8b2f38c9232eaef8f613969cc0a3808146f4df100f5
root 8b51af31bc4d5d3e03b6bf2c57100499b64a136d71df7946efe85df7fa65af08