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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 PUBLIC WORKS AND HIGHWAYS - REGION I Award a ₱34.9M contract to CHRISTIAN IAN CONSTRUCTION CORPORATIONNational agencies

Transaction hash:
9a548e91252ed40a9bebc02fb7528f76abaa4b2dfc1a0efaf9e70b2260444b32
Status:
Included and unchanged
Block:
#2,690 3,323 blocks after it
Position in block:
Transaction 435 of 734
Award day:
Mar 15, 2016 (10 yrs 7 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 #2,690 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 2016 MFO-1", i.e. the FY2016 GAA. The exact UACS line is not given.
    Partly
  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 - REGION I awarded it to CHRISTIAN IAN CONSTRUCTION CORPORATION on 2016-03-15.
    Found
  5. 5. Contract & progress
    Contract / progress report (DPWH) · Sec. 5(d)
    DPWH contract 16A00066: Completed, 100% physical progress.
    Found
  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 2018-02-28). 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   9a548e9125…444b32now      …
  2. 2. Block Merkle root changed
    stored   e425bfbafc…b49d56now      …
  3. 3. Block #2690 hash changed
    stored   cba50df1fd…8ba287now      …
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 733 records. Each step hashes the current value together with the sibling shown.

  1. leaf  9a548e91252ed40a9bebc02fb7528f76abaa4b2dfc1a0efaf9e70b2260444b32
  2. 01 L 9a2a43a8f0ed0d4cd908d8685d09947b2e8c0a3219c58b1f0ef8e7cadd25ece2
  3. 02 L 4024105d693596277ece97b531a8495eb0b3153de8c946b98bf07f82768f5071
  4. 03 R ddeac6d9644473a86cae847cad6fbd244ef318c4d2fa62262c25ce8c6abb173c
  5. 04 R b50a11bd06c18c335d42a66d36aad129616bb2258136614c7912620c5f302adf
  6. 05 L 616178342431749fbd8ad8c3e7ad5b1733c721fbc5832a721c7c64c19ce3232a
  7. 06 L adb1dd0f69932124d0b5146a523a8e167cdb4b3cefb38c8fda75e0436853f772
  8. 07 R b9cc2f3f5e8c4d8d65a6ad5240ed1e200d794f239ce31a9ef9eae02f4125f281
  9. 08 L 643c9b66984d39d2d609c110a6f3b16c10906198a81235dd38831d66aab49837
  10. 09 L ef23ce2de005561e2b2b57bc982f83d1d0b4b4f19c219227d151627c3a6618b5
  11. 10 R b234f9acca688eb68b3d930d5d15c3020f861b7d8c85b80550ceee8dd2fef4b7
  12. root  e425bfbafcdac65758a1a2df311f6fa8cd7fa6a38d2b270ea60c03cb45b49d56