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 EDUCATION - DIVISION OF MALABON Award a ₱3.4M contract to TAPNIO AND TAN CONSTRUCTION AND DEVELOPMENT CORP.National agencies

Transaction hash:
dbab736bf21d08a8d334972e8d6c8c891f0fcbf26c5af27146fb3294b4d68483
Status:
Included and unchanged
Block:
#918 5,095 blocks after it
Position in block:
Transaction 13 of 16
Award day:
Jul 30, 2010 (16 yrs 3 mo ago)
Value:
₱3,375,238.61
Project:
Invitation to Submit Quotation

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 #918 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 EDUCATION - DIVISION OF MALABON awarded it to TAPNIO AND TAN CONSTRUCTION AND DEVELOPMENT CORP. on 2010-07-30.
    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   dbab736bf2…d68483now      …
  2. 2. Block Merkle root changed
    stored   809ab679fa…d9fe1enow      …
  3. 3. Block #918 hash changed
    stored   3344bd94be…3441bcnow      …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (4 steps)

How this one record is tied to the block's Merkle root, without needing the other 15 records. Each step hashes the current value together with the sibling shown.

  1. leaf  dbab736bf21d08a8d334972e8d6c8c891f0fcbf26c5af27146fb3294b4d68483
  2. 01 L d6a5d2cfc1af43fa158e6ee316237d4c01786dc5a4ca9c2716e62d8cf885d59f
  3. 02 R 8cbfe85d8924d0d3e159d18440590f9ed3dada305f35e19d2799493d568be1a5
  4. 03 L 565ae55c4faa0af7b859003fda669657c898c1c7675c458f6a08a0024b340690
  5. 04 L 6e07857c2ff37c37f28e3d3dc5e21a1d9026ca84b8493f7d923f22e27879d857
  6. root  809ab679fa9dcc118d66d6367a9a0d39387c72b1378ee0e13c3f5244cbd9fe1e