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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

DEPARTMENT OF ENVIRONMENT AND NATURAL RES. - PENRO, LEYTE Award a ₱1.5M contract to ROVINVAL ENGINEERING AND CONSTRUCTIONNational agencies

Transaction hash:
a9f2d3f2fe767303b59e4dbe1f039ceb43c194d9e1bda335471a7cac3b8bb8a1
Status:
Included and unchanged
Block:
#3,281 2,732 blocks after it
Position in block:
Transaction 510 of 766
Award day:
Dec 21, 2017 (8 yrs 10 mo ago)

Accountability

Bill Sec. 3 and 19
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 #3,281 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)
    DEPARTMENT OF ENVIRONMENT AND NATURAL RES. - PENRO, LEYTE awarded it to ROVINVAL ENGINEERING AND CONSTRUCTION on 2017-12-21.
    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)
    No COA finding linked to this contract.
    Not published

1 of 8 documents found, 0 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   a9f2d3f2fe…8bb8a1now      …
  2. 2. Block Merkle root changed
    stored   9e0309d5eb…d40323now      …
  3. 3. Block #3281 hash changed
    stored   4e6cba51d5…5b5d93now      …
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 765 records. Each step hashes the current value together with the sibling shown.

  1. leaf  a9f2d3f2fe767303b59e4dbe1f039ceb43c194d9e1bda335471a7cac3b8bb8a1
  2. 01 R aa253a5874602278c0047f11374f93786dc2cc7f4ae74585695ae669a7a4553c
  3. 02 L aa9dbebc8215ab095cd1710cbcfbb67f1e3ab2c5fd386aeac9129b5b793d8aef
  4. 03 L 4128b64cc8146ceae591d34291d81108f0bbae4d80f800e7f82b5082aeebd137
  5. 04 L b0569632195bab49acb66318c0fc60aeddac7df0aaf6ff41042de1f79a6c3708
  6. 05 L 6f0349b8db7d71df6f6e9c2a48a9dac3473136545f9b31d42de097a5e7965020
  7. 06 L c2790e3695b0ddab4ba48fb4a34c30d1f941f090f0aba29d184618846a73ee13
  8. 07 L a17c8d9701341b1641fb99d4b4f212b85989289302545b9cd1b2cfed3faf2118
  9. 08 L 57d475bfbb322a6b24e303c9f046c7a18ca3e888dad470b37d6ea3b175d2c9c4
  10. 09 L 974e8d7b5d338495ca6a98766ca185605c2036b124214fb3e428a49a379123bd
  11. 10 R db382426da6af360c50e56de557fb5ed63c86ac769cf305138965b1997157648
  12. root  9e0309d5eb97d6a32246e8747f1916d9dfcb56767e3e92b7f3f91e996cd40323