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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

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO DEL NORTE DE Award a ₱3.9M contract to PMMGS CONSTRUCTION CORPORATIONNational agencies

Transaction hash:
83c19bfd64db3ee97f677c7023e47a4f6fea8a53d29946f6344508faf0a83de4
Status:
Included and unchanged
Block:
#4,895 1,118 blocks after it
Position in block:
Transaction 150 of 283
Award day:
Aug 22, 2022 (4 yrs 2 mo ago)
From:
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO DEL NORTE DE
To:
PMMGS CONSTRUCTION CORPORATION
Value:
₱3,899,991.39
Project:
21LC0195 - Construction of Water System,
Full record:
Open the award page

Accountability

Bill Sec. 3 and 19
Responsible agency:
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO DEL NORTE DE
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 #4,895 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)
    DPWH lists the funding source as "Regular Infra - GAA 2021 LP", i.e. the FY2021 GAA. The exact UACS line is not given.
    Partly
    Open
  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 PUBLIC WORKS AND HIGHWAYS - DAVAO DEL NORTE DE awarded it to PMMGS CONSTRUCTION CORPORATION on 2022-08-22.
    Found
    Open
  5. 5. Contract & progress
    Contract / progress report (DPWH) · Sec. 5(d)
    DPWH contract 21LC0195: Completed, 100% physical progress.
    Found
    Open
  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)
    DPWH marks the contract "Completed" (end 2022-11-07). The certificate itself is not published.
    Partly
  8. 8. Audit
    COA annual audit report · Sec. 5(e)(iii)
    No COA finding linked to this contract.
    Not published

2 of 8 documents found, 2 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   83c19bfd64…a83de4now      …
  2. 2. Block Merkle root changed
    stored   cb606ad7f4…450024now      …
  3. 3. Block #4895 hash changed
    stored   25848c93b9…321d9anow      …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (9 steps)

How this one record is tied to the block's Merkle root, without needing the other 282 records. Each step hashes the current value together with the sibling shown.

  1. leaf  83c19bfd64db3ee97f677c7023e47a4f6fea8a53d29946f6344508faf0a83de4
  2. 01 R 846364e3c32a73a766d727dd915417c0f092dcd0572e0d014178b75e90c880f9
  3. 02 L 6721cd3eb4b5e2b60c371bb8a13a8559519b02e53cfa6077c94b17fa6edfdcec
  4. 03 L 20f9bf6adf9863786c7e5893c62dce0d4049b67eb61c42c8b926ff85f1440ef0
  5. 04 R eea3361578a804bc91cd1d681a3d36adb096b446ea2f8b0addb9ef45b1ea2fb6
  6. 05 L 3817d7472df85c1c3c9edaa4a0b2a57b25fadee1084acf1734ab905b7083f692
  7. 06 R 24b083b117766ca13664ceb10128173597c3cf38dbc5b492b2c686219224671f
  8. 07 R b390fe5493230020f6407fd9503ea316a545cc0f9eff4cb84035315e0a4bf6cf
  9. 08 L a76c20238c9b6da5ec6dd415493d761883f72c88ce452bdc73d4912f74314dab
  10. 09 R 170d5dd3e316f9151077da4b9969986d65a5a5e78043ee3a71bf611e65a35e65
  11. root  cb606ad7f43f9c3e2573d2fff4517c89e330a7ee9c2421a01bb96cd971450024