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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 ₱2.0M contract to J.B. ALARCON ENTERPRISES & GEN. MERCHANT & CONTRACTORCities

Transaction hash:
7fa3e1211c06b4f51ec26e43a141b0957e915597976f5b2fba9114a114f4a7b8
Status:
Included and unchanged
Block:
#487 5,526 blocks after it
Position in block:
Transaction 18 of 25
Award day:
Dec 5, 2008 (17 yrs 11 mo ago)
Value:
₱1,999,491.21
Project:
I-2008-019 Construction of Barangay Hall (Phase 1)/Barangay No. 2

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 #487 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 2008-12-05.
    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   7fa3e1211c…f4a7b8now      …
  2. 2. Block Merkle root changed
    stored   f6e900db61…b981b1now      …
  3. 3. Block #487 hash changed
    stored   850fbea7c3…b09367now      …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (5 steps)

How this one record is tied to the block's Merkle root, without needing the other 24 records. Each step hashes the current value together with the sibling shown.

  1. leaf  7fa3e1211c06b4f51ec26e43a141b0957e915597976f5b2fba9114a114f4a7b8
  2. 01 R 97825dc8d827e03b61fdd3b75e44ddeed99ed045f175238aedfa5132d81fe897
  3. 02 L fd5f973029f33c75b0a5062fe250e5a2302a349c3f7ec30a059af5e91a785485
  4. 03 R 9e501b53062d82924720c03b44b173b616c836d351b1ac356355e94696c13598
  5. 04 R ea8a26ca282164a303b73c8d1ea6fe4cf92ffca62c4d2dc160aeae523e645969
  6. 05 L 0f43d97daf24bced2e27fa3d113218794d1725e31c30110f15ff30791b4271c8
  7. root  f6e900db616a4389bddd7ea009878334210728db9cb4864f60f2e467cbb981b1