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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 VIGAN, ILOCOS SUR Award a ₱279.9K contract to ELKAN ENGINEERING SERVICES & GENERAL MERCHANDISECities

Transaction hash:
ff0e76d46b3f2dbf9206ef19aa12b2c9c37d6d7fb0439f216ac8c1e34d1cf7eb
Status:
Included and unchanged
Block:
#1,537 4,476 blocks after it
Position in block:
Transaction 23 of 24
Award day:
Aug 20, 2012 (14 yrs 2 mo ago)
Value:
₱279,900.72
Project:
Construction of Maritime Headquarters at Brgy. Mindoro, Vigan City

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 #1,537 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 VIGAN, ILOCOS SUR awarded it to ELKAN ENGINEERING SERVICES & GENERAL MERCHANDISE on 2012-08-20.
    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 Vigan gave a "unmodified" 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   ff0e76d46b…1cf7ebnow      …
  2. 2. Block Merkle root changed
    stored   ab8dc75835…21c6f2now      …
  3. 3. Block #1537 hash changed
    stored   a69901193a…9b9564now      …
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 23 records. Each step hashes the current value together with the sibling shown.

  1. leaf  ff0e76d46b3f2dbf9206ef19aa12b2c9c37d6d7fb0439f216ac8c1e34d1cf7eb
  2. 01 L faade93e4ecb3f0a7143c3a63c2efce8d0594e53de5a02b8a1c2c5f015bca288
  3. 02 L 112013b1a4964904984fca42e06c8eee7cb9605146f2a6f7a3e83bf3603b351c
  4. 03 L 88633f135330b3909346c85d51b7d42343f099b8ebd172233e7cb082c08c7c12
  5. 04 R ccf2242bafbdf2278071651f72a267d4b7db1cba934814666ef543bddc2ef5ba
  6. 05 L a701499e3a9bdf40a96cff70ac18a28a51863ca8849e85bb341d009c78b32d07
  7. root  ab8dc75835f3d03529f93a1ea74b2067661e08416b47ecf237fc529c1421c6f2