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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 TANAUAN, BATANGAS Award a ₱996.8K contract to C. CASTILLO CONSTRUCTIONCities

Transaction hash:
cc534e706dea772eea4153439bb24dc69f40c4d11c6cd4dfbe4817dcde434b83
Status:
Included and unchanged
Block:
#1,554 4,459 blocks after it
Position in block:
Transaction 3 of 4
Award day:
Sep 8, 2012 (14 yrs 2 mo ago)
From:
CITY OF TANAUAN, BATANGAS
To:
C. CASTILLO CONSTRUCTION
Value:
₱996,800.00
Project:
infra no. 3
Full record:
Open the award page

Accountability

Bill Sec. 3 and 19
Responsible agency:
CITY OF TANAUAN, BATANGAS
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 #1,554 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 TANAUAN, BATANGAS awarded it to C. CASTILLO CONSTRUCTION on 2012-09-08.
    Found
    Open
  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 Tanauan gave a "qualified" 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.

  1. 1. Record fingerprint changed
    stored   cc534e706d…434b83now      …
  2. 2. Block Merkle root changed
    stored   2904b0863c…3a3a03now      …
  3. 3. Block #1554 hash changed
    stored   cf03eddcfd…21cdacnow      …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (2 steps)

How this one record is tied to the block's Merkle root, without needing the other 3 records. Each step hashes the current value together with the sibling shown.

  1. leaf  cc534e706dea772eea4153439bb24dc69f40c4d11c6cd4dfbe4817dcde434b83
  2. 01 L 768721fa08b322311188eb419dc46b209c4bcf21d221462345a9ce5d96ae35f3
  3. 02 L 8dd2fa6e0201f8d7768f1b25f1d45cdeb8ef12757642ef44cecd3371e925bfe1
  4. root  2904b0863cf3ae19f2fa76c6ab31c248cebd6437173c1732a2323ac4bf3a3a03