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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 TANAUAN, BATANGAS Award a ₱1.6M contract to Z. ANTIOQUIA CONSTRUCTIONCities

Transaction hash:
b3510c80cfb9caef40fc31e8aa8430cc166796f63a609b50dee0d2f462cbfcc4
Status:
Included and unchanged
Block:
#3,715 2,298 blocks after it
Position in block:
Transaction 390 of 547
Award day:
Mar 22, 2019 (7 yrs 7 mo ago)
Value:
₱1,589,893.33
Project:
Infra Projects 2019 (1st Quarter- 5th Batch)

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 #3,715 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 Z. ANTIOQUIA CONSTRUCTION on 2019-03-22.
    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 Tanauan 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   b3510c80cf…cbfcc4now      …
  2. 2. Block Merkle root changed
    stored   d238ddd88e…5b20c0now      …
  3. 3. Block #3715 hash changed
    stored   53036891aa…0a5c21now      …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (10 steps)

How this one record is tied to the block's Merkle root, without needing the other 546 records. Each step hashes the current value together with the sibling shown.

  1. leaf  b3510c80cfb9caef40fc31e8aa8430cc166796f63a609b50dee0d2f462cbfcc4
  2. 01 R b36771d970cf02ec8a1dc27db6b7074530431668464ba24205948d9d4acbce10
  3. 02 L a73c6c85e46dc513372f4c3a800f975b5fcf9b7079c5e27a7f17a72776fcabff
  4. 03 L 3bc24a7e2892da6fd9d37ca3382737f067d5cbac92cc36c8997ff63fb994af0c
  5. 04 R e6970b462bca3a215f3113ab1f27b670b86b1abc8acd3b7ea0130dfedf5a1477
  6. 05 R ece88d4200857c3e02e2fbaa9ba81894890beacad2eb5b03b54f5c754790ee6a
  7. 06 R eb1a200119d0d284ba3dd5e2a00f6e2acb04efadaaeb6bcb517fa2e578a46017
  8. 07 R 58e6498c7cced0deac6b71814079713a355d56f7777213cf25943be6b1e189d3
  9. 08 L 0ab342d91e29856589351dd163a8703b35ab8ac6721a6a9b9ca8e0122f765c30
  10. 09 L 3dcc0353a6aef00ddd7adf1b8a7a5223bd3c7bdf9cb63d568c0817df89126983
  11. 10 R 249ac637964ccc056e08ae89b00de551acfd6fbb0c8a5aabb7f52f2764de0c5e
  12. root  d238ddd88e9a4ee4d85933a6a96d3b22b5e8e3f384e5b69491c31b0a535b20c0