Skip to content
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 - PALAWAN 2ND DEO Award a ₱969.1K contract to SAMURAI CONSTRUCTIONNational agencies

Transaction hash:
dcaba4504ecc5818c18cfcdb90055c308d652c67b46538fa3b6924de50b8edcf
Status:
Included and unchanged
Block:
#3,366 2,647 blocks after it
Position in block:
Transaction 356 of 406
Award day:
Mar 19, 2018 (8 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 #3,366 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 2018 LP", i.e. the FY2018 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 - PALAWAN 2ND DEO awarded it to SAMURAI CONSTRUCTION on 2018-03-19.
    Found
  5. 5. Contract & progress
    Contract / progress report (DPWH) · Sec. 5(d)
    DPWH contract 18EF0052: 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 2018-09-30). 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   dcaba4504e…b8edcfnow      …
  2. 2. Block Merkle root changed
    stored   2e3b250d77…6643c8now      …
  3. 3. Block #3366 hash changed
    stored   0bfae71df7…ca8a6dnow      …
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 405 records. Each step hashes the current value together with the sibling shown.

  1. leaf  dcaba4504ecc5818c18cfcdb90055c308d652c67b46538fa3b6924de50b8edcf
  2. 01 R dce874d9fd45898e4585026012e6ba86f8d96aa3d1aff49563c78f67d92c0a51
  3. 02 R 8181e0ac0c3f4e31d5d45178650ac197bda834e8a856dc69573ccbf43b806a2c
  4. 03 L e537a342b3458ccd86e65096d95fd84b0cfba006fdfbec5cca9d49c499ec13e2
  5. 04 R 3504d35a09816f0e42efe58c7c0554cafd7307ebe77fc341addfd91b5a3acff5
  6. 05 R 0c7a7364fcfd070775b69ca769540b33ee7ab07a91bd5be5c5cad39113deb021
  7. 06 L 9f547d47d5b4757e68199068df5a81e42517d47fc7c3eafa920b7e12c42f660d
  8. 07 L 2cdf57886ffebe4d075be03c5853e156dd7e0e73f3b6b50c3936882fb626e068
  9. 08 R 539756fc50069937b76104c6a0b9eed01ab79d040f03aa7801f0dc098c5cffdf
  10. 09 L fa835a7619fdb70962c7b6238acd2dd4f9d50d1ed363723e3c3a0663da8fa96a
  11. root  2e3b250d77648d1e8922910d3fc5b1b77c5336e810cb5012b4fd1bc92d6643c8