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 CALOOCAN Award a ₱5.2M contract to P.B. GREY CONSTRUCTIONCities

Transaction hash:

b577f4a12dcb744cc22b6ecfc6dcac2c8785d2f2586eff40cb26c4fcc29a5066

Status:

Included and unchanged

Block:

#1,142 4,871 blocks after it

Position in block:

Transaction 25 of 47

Award day:

May 13, 2011 (15 yrs 6 mo ago)

From:

CITY OF CALOOCAN

To:

P.B. GREY CONSTRUCTION

Value:

₱5,230,502.00

Project:

Concreting of Dahlia St. (Camia St.-Dona Aurora St.), Barangay 177, Camarin, Caloocan City

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

CITY OF CALOOCAN

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 #1,142 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 CALOOCAN awarded it to P.B. GREY CONSTRUCTION on 2011-05-13.
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 Caloocan gave a "unmodified" 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 b577f4a12d…9a5066now …
2. Block Merkle root changed
stored 77f0ec36b3…362299now …
3. Block #1142 hash changed
stored 4dc2f26d3b…42fb94now …

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

leaf b577f4a12dcb744cc22b6ecfc6dcac2c8785d2f2586eff40cb26c4fcc29a5066
01 L b4b638521142e460451080b770398a07d415aacb016e7b295187b38bc0d48d3d
02 R 6501e6ffc93e1610b061d6bbf96b11c5814d0cc4898b976984339b00d6e7a6e3
03 R ef247d54b2f67d70711320908976748ba08a3f20658e318245e07f3e66b7c743
04 L 550bb439b13291ca532044ddae4e52b67e8162000682e27d3e365bfb5d33d5de
05 L 9a179338971681e1039fc899c05e5770fe9d75a34caee77a4550dedc6cdd9aa5
06 R 56fad84a4735f9517f70bf778ff35dda1c40ae53d03dd8b965790c68ef3f7bb2
root 77f0ec36b36233b5797989518efc2ae9618437e0c827beec716d4c2533362299