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

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - EASTERN SAMAR DEO Award a ₱2.1M contract to TUBIGAN BUILDERSNational agencies

Transaction hash:

aa7e9c1de79bf31b5f93a296566c688ca46bbdae298e0ace0d7d97171106d6d9

Status:

Included and unchanged

Block:

#2,855 3,158 blocks after it

Position in block:

Transaction 136 of 208

Award day:

Sep 20, 2016 (10 yrs 1 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - EASTERN SAMAR DEO

To:

TUBIGAN BUILDERS

Value:

₱2,082,278.23

Project:

16IB0164 - Construction of 1STY 2CL School Buildin

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - EASTERN SAMAR DEO

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 #2,855 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)
DPWH lists the funding source as "Outside Infra - GAA 2016 DepED BEFF", i.e. the FY2016 GAA. The exact UACS line is not given.
Partly
Open
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)
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - EASTERN SAMAR DEO awarded it to TUBIGAN BUILDERS on 2016-09-20.
Found
Open
5. Contract & progress
Contract / progress report (DPWH) · Sec. 5(d)
DPWH contract 16IB0164: Completed, 100% physical progress.
Found
Open
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)
DPWH marks the contract "Completed" (end 2017-01-07). The certificate itself is not published.
Partly
8. Audit
COA annual audit report · Sec. 5(e)(iii)
No COA finding linked to this contract.
Not published

2 of 8 documents found, 2 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 aa7e9c1de7…06d6d9now …
2. Block Merkle root changed
stored 12d0fe970e…1df4c8now …
3. Block #2855 hash changed
stored 4902449c8d…532354now …

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

Merkle proof (8 steps)

How this one record is tied to the block's Merkle root, without needing the other 207 records. Each step hashes the current value together with the sibling shown.

leaf aa7e9c1de79bf31b5f93a296566c688ca46bbdae298e0ace0d7d97171106d6d9
01 R ade32a524007b79c60e4e4196338477c12c3253535f6d7b09210b5dbb9d6841f
02 R de5651c48f3a2ec771fd60ff7582f7ababad6070f6782893a0996793fceded46
03 R 9b0b0a9e42fc12f6b711c52704212c788bf531552ea8832e9041b8cfa50f933e
04 L 036cc6a66506c271b2ed95144ec4aa5fa7e871cb9da77bcc1ecf626653d055ec
05 R 03232c3fa0b70be7874cfbe34ea75290e94ee7e2f7d452e853909ef24b3f6ec9
06 R b96b094c10a80129de3f9eed60f7e536dc97003542f0f78006695e886426527e
07 R 55ed5bf617473e127e04b94fde4edc695c9709b12eb516b5175c93202298eea4
08 L b7a0d99ce13322f485e5ec0bcc23d6c6c763d4fa5f09047fa7ac7f0047ea94c7
root 12d0fe970e9a8c209ee90888a0b73c092f9359a6f3209e66ffab47f2711df4c8