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 - SDN 1ST DEO Award a ₱20.3M contract to A.T. DUMLAO CONSTRUCTION, INC.National agencies

Transaction hash:
da9608010e701da8b9730cb2f9208c9f3ed2ebf0d5229bce2daddcb6916d2faf
Status:
Included and unchanged
Block:
#3,282 2,731 blocks after it
Position in block:
Transaction 864 of 998
Award day:
Dec 22, 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 #3,282 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 PUBLIC WORKS AND HIGHWAYS - SDN 1ST DEO awarded it to A.T. DUMLAO CONSTRUCTION, INC. on 2017-12-22.
    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   da9608010e…6d2fafnow      …
  2. 2. Block Merkle root changed
    stored   60d0402335…d0fbfdnow      …
  3. 3. Block #3282 hash changed
    stored   25d020651f…b168e4now      …
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 997 records. Each step hashes the current value together with the sibling shown.

  1. leaf  da9608010e701da8b9730cb2f9208c9f3ed2ebf0d5229bce2daddcb6916d2faf
  2. 01 R db3c542f4eb0f7738ba712cb8e70200073d3a1b144139543402b15e2f72a5a24
  3. 02 R 4b75f20b4d1446189ca323852422953a91ac2164ec94f5714c0139768a23080c
  4. 03 R 106f8f5509aca4f91d56e188fa88c28f34a533a875dad7ebbada20387b15a53c
  5. 04 R 37cc712717c8d2adc7759e9bd5eb8a693c6899a2319e004ef3704e48857539d1
  6. 05 R 4bda1b313b3e0130a38fcc1b3f8a012151e65e28a8be008ff4b2286da6649cb1
  7. 06 L 38add9b4a92ef6e5c63569228ded9dab91c6e0d1d0aa0354e04759268e84973b
  8. 07 L 0ca0ad7839210ad3d3fc58f086726e7b9e6ab0b6324120f7e20e36d8b49809e4
  9. 08 R ca081907790ce65359e688419127a0b5902622bfb891ade8b80af048e8e31a5e
  10. 09 L fbd8af44bfd6f19ee1de28ed50d28bfe73e61c33a87b8cc3f327ef5fc608650c
  11. 10 L 9f402a69ab82cf839577b84e6b27cc42f7d4579aff4c47cee1bb53b621224877
  12. root  60d0402335a5ce0f94be181b592fa8425baa0f3def3068197fc0f1bb99d0fbfd