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 - REGION VIII Award a ₱9.8M contract to MAC BUILDERSNational agencies

Transaction hash:

480bf2a0c43aeba2f46ee728b1c5f80b91d07a0c4d220938e7ff2b118ea7f3b3

Status:

Included and unchanged

Block:

#1,340 4,673 blocks after it

Position in block:

Transaction 19 of 65

Award day:

Jan 3, 2012 (14 yrs 10 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION VIII

To:

MAC BUILDERS

Value:

₱9,754,641.03

Project:

11IE0134 Replacement of MUERTEQUE BRIDGE, along San Isidro-Daja Road San Isidro, Leyte

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION VIII

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 #1,340 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)
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION VIII awarded it to MAC BUILDERS on 2012-01-03.
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 480bf2a0c4…a7f3b3now …
2. Block Merkle root changed
stored 0354f1a24f…4ae5bbnow …
3. Block #1340 hash changed
stored 5198138ee9…caf5fanow …

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

leaf 480bf2a0c43aeba2f46ee728b1c5f80b91d07a0c4d220938e7ff2b118ea7f3b3
01 L 4063690d0a6c5aa208059f7ade360d09675c374e588b264975d14f4cd37d905b
02 L a6062b44cf9a7e52dd0bfe6402f49ccee5e1d49107ee74f12cc479857c206f2b
03 R ad7e288ad2b206d2d9706569f14a29780f4931155dd02cb3b19902b8784c6163
04 R 5c9a99d776e29e8344f9aea3e95253cbdbcdf9628cda7ad37b156ffde38ea4df
05 L fcf7037f04dbd6677ac7cbadec4592c14a7439ff69ed21a8ee585eff2ed55518
06 R a8b6fb6970671a4bbff83c49df989d69acbde8a6d95f70f656e8d56b03f6140d
07 R 2976c4f86beddf08ec83e875b904f11c8305bf658da36075a4ce9933d32602bc
root 0354f1a24fce273d0f5d9ba16680d43daec45dd4d6ad05027f7635605d4ae5bb