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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 - NORTHERN SAMAR 1ST Award a ₱8.7M contract to CDU CONSTRUCTIONNational agencies

Transaction hash:
b5e607150dd7697c250cf42e41d69e6da845acb04a0def8bc31d5ff83c7f1789
Status:
Included and unchanged
Block:
#4,288 1,725 blocks after it
Position in block:
Transaction 494 of 694
Award day:
Nov 23, 2020 (5 yrs 11 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 #4,288 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 2020 LP", i.e. the FY2020 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 - NORTHERN SAMAR 1ST awarded it to CDU CONSTRUCTION on 2020-11-23.
    Found
  5. 5. Contract & progress
    Contract / progress report (DPWH) · Sec. 5(d)
    DPWH contract 20IH0101: 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 2021-09-20). 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   b5e607150d…7f1789now      …
  2. 2. Block Merkle root changed
    stored   c993eae7cb…15c4f4now      …
  3. 3. Block #4288 hash changed
    stored   990cb5ffc4…64e2fdnow      …
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 693 records. Each step hashes the current value together with the sibling shown.

  1. leaf  b5e607150dd7697c250cf42e41d69e6da845acb04a0def8bc31d5ff83c7f1789
  2. 01 R b6353e5edaedc233b46985901ce3d08d64b24e4d0161ea5633a2ba4d06038766
  3. 02 L 655e392a0aa9e78307ec9687d23c2f5b150c78921a98b56b16988c90de139991
  4. 03 L 5705ef56c4058a4ebf93186d28ab4910a0acb7ce52978603268322088eb6386a
  5. 04 L 049cec62effef0a88f4f0a0dff81fb69e6fdfc63e3a52e7642763118319828f2
  6. 05 R a4129b953f02785353982e0a831a21f9cab22cb6621592921b8aa25ec2d8a013
  7. 06 L 20b25de8d16ead4fecf9d00f8f193009dab5252197e3e0f60d23365f504bb4e3
  8. 07 L 03a38f1d441ce9d5b8b9e1f337f564b28d88f6693ba7033fa410a7d22cc68455
  9. 08 L 8bcceea41444166f99d6b5ff415e62860d91447d1f11a1ad9391f13391f7103d
  10. 09 L b6322c1d9c65951eef5d0fafa454236fb1d5a476c475511bb5e0d05c811cbd44
  11. 10 R ea82c3f68c10390911b4183a731e049f7983c87136ffcea1eca9181959eef6c6
  12. root  c993eae7cba6fae0d01c668881f2a43db244c3cfa2c80971688853dbaf15c4f4