Skip to content
FY2026 GAA: ₱6.79T
PisoScan
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 CALAMBA, LAGUNA Award a ₱263.6K contract to J.B. ALARCON ENTERPRISES & GEN. MERCHANT & CONTRACTORCities

Transaction hash:
756f9d59bae7c9dfaa951f8aaec1af454c47f1f698da5c2200a0315d1a4074aa
Status:
Included and unchanged
Block:
#587 5,426 blocks after it
Position in block:
Transaction 6 of 13
Award day:
Apr 29, 2009 (17 yrs 6 mo ago)
Value:
₱263,606.78
Project:
I-2008-127 Improvement of Drainage Canal, Barangay Banadero

Accountability

Bill Sec. 3 and 19
Responsible agency:
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 #587 signature valid Demo key, proves nothing about the governmentPublic key

Linked records: from budget to payment

Bill Sec. 5
  1. 1. Appropriation
    GAA line item · Sec. 5(b)
    The award does not say which budget line pays for it.
    Not published
  2. 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. 3. Cash allocation
    Notice of Cash Allocation · Sec. 5(c)(iv)
    Not published per project.
    Not published
  4. 4. Contract award
    Notice of Award (PhilGEPS) · Sec. 5(d)
    CITY OF CALAMBA, LAGUNA awarded it to J.B. ALARCON ENTERPRISES & GEN. MERCHANT & CONTRACTOR on 2009-04-29.
    Found
  5. 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. 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. 7. Completion
    Certificate of completion · Sec. 5(d)
    No completion certificate published.
    Not published
  8. 8. Audit
    COA annual audit report · Sec. 5(e)(iii)
    COA's CY2024 audit of City of Calamba gave a "qualified" opinion on its financial statements (not specific to this contract).
    Partly

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.

  1. 1. Record fingerprint changed
    stored   756f9d59ba…4074aanow      …
  2. 2. Block Merkle root changed
    stored   bed5cdb463…826dc6now      …
  3. 3. Block #587 hash changed
    stored   46acbea83d…c6a25bnow      …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (4 steps)

How this one record is tied to the block's Merkle root, without needing the other 12 records. Each step hashes the current value together with the sibling shown.

  1. leaf  756f9d59bae7c9dfaa951f8aaec1af454c47f1f698da5c2200a0315d1a4074aa
  2. 01 R 80854c1e029de9c54f672f46128190d1eaafd3e75921374cf7a3fdab49d939c3
  3. 02 L 153e150dc19525f8d4a94dad3e9f43eae29a0dfa3c9e389a64e13ecd2b1b2442
  4. 03 L 71b9a0197c7e447a341bf0f68e1639ffe1103bb4c35255f4a0281fcb5a831df8
  5. 04 R 7df5bd0fbc6cc7ea48be8d987731679e1b89640cd1507d07a57480cbb99dac11
  6. root  bed5cdb463a3c6cab8cb1f8908c17646d65adf918730e6b79cfde928b8826dc6