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 ₱14.4M contract to P.B. GREY CONSTRUCTIONCities

Transaction hash:

438373ae867e4c0bc366da4e9deaa6065f2dfdaf5bfb88ec58be8d277ba7c70e

Status:

Included and unchanged

Block:

#1,513 4,500 blocks after it

Position in block:

Transaction 16 of 64

Award day:

Jul 20, 2012 (14 yrs 3 mo ago)

From:

CITY OF CALOOCAN

To:

P.B. GREY CONSTRUCTION

Value:

₱14,436,905.00

Project:

Improvement of Roads and Drainage System at Phase 4 Package 4, Barangay 176, 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 #1,513 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 2012-07-20.
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 438373ae86…a7c70enow …
2. Block Merkle root changed
stored 7b0682ff32…dbf37enow …
3. Block #1513 hash changed
stored 727350c683…556f3bnow …

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

leaf 438373ae867e4c0bc366da4e9deaa6065f2dfdaf5bfb88ec58be8d277ba7c70e
01 R 4740903bac522479e693749113515559f5a2c2e1ccad6bbc8a77be5e9178001d
02 R 1099e66cc422781d2e2afebbd42224381132d87ca9d49045fbd3254ea71562a3
03 R 49dba044f356ae082b38f40cffb1a54a9969b0f775f3dcbb360de2b7da48aad5
04 R 792068eb29f9f59b0264ea0376fb3564c3d6cde0a2191bc14a06885bc7e6f45b
05 L 7d2d51dfe90ef6dc854e44bf818e146d311463d81ae037aa9ac6b638a5464d66
06 R 9295be7a3417bc698f8e113836ac45c9a3599bdbc975fe4963898ae3eca6f4a6
root 7b0682ff328de8bc1e9f33fcdfa098e346ce2c2c453e3254d5df7f4e01dbf37e