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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 - LDN 1ST DEO Award a ₱1.9M contract to AMMAR CONSTRUCTION AND ENTERPRISESNational agencies

Transaction hash:
6bceb86a0f1ae92f89f451db159d7a2fa615f95b1a3b75d634c66b32bd52c2ec
Status:
Included and unchanged
Block:
#1,902 4,111 blocks after it
Position in block:
Transaction 7 of 16
Award day:
Oct 28, 2013 (13 yrs 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 #1,902 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 - LDN 1ST DEO awarded it to AMMAR CONSTRUCTION AND ENTERPRISES on 2013-10-28.
    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   6bceb86a0f…52c2ecnow      …
  2. 2. Block Merkle root changed
    stored   7d0a220886…2e038anow      …
  3. 3. Block #1902 hash changed
    stored   972fb70991…7f2c1anow      …
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  6bceb86a0f1ae92f89f451db159d7a2fa615f95b1a3b75d634c66b32bd52c2ec
  2. 01 L 699ec29745d20dc8e2ece0c82e1a1e2927336d09f0e167d28a113066ffd3acd3
  3. 02 L e8885b8ff0fa19e96ff131d4d05e1bdd8473c3c89243195e5958d473e7c9fe00
  4. 03 L fbd202decaf8932fbe835e825909d6512dd01b9c22cc5b1d066a149fdb928cef
  5. 04 R 785d2dc70a621dbe6b08168fc00b6b702c63992285c056f7fe0aa238555e61f7
  6. root  7d0a220886a63b0742a7ee4f32aac03fcabe23fa65c3b03e99aa74f1b32e038a