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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

METRO MANILA DEVELOPMENT AUTHORITY Award a ₱4.5M contract to EXPRESS CONSTRUCTIONNational agencies

Transaction hash:
b59d416df1445bbb677330065299d92885914a9d6450ffb799d323d5ba701e42
Status:
Included and unchanged
Block:
#2,054 3,959 blocks after it
Position in block:
Transaction 3 of 5
Award day:
Apr 18, 2014 (12 yrs 6 mo ago)
From:
METRO MANILA DEVELOPMENT AUTHORITY
To:
EXPRESS CONSTRUCTION
Value:
₱4,474,472.37
Project:
construction project
Full record:
Open the award page

Accountability

Bill Sec. 3 and 19
Responsible agency:
METRO MANILA DEVELOPMENT AUTHORITY
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 #2,054 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)
    METRO MANILA DEVELOPMENT AUTHORITY awarded it to EXPRESS CONSTRUCTION on 2014-04-18.
    Found
    Open
  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   b59d416df1…701e42now      …
  2. 2. Block Merkle root changed
    stored   776d77dd8f…e824c9now      …
  3. 3. Block #2054 hash changed
    stored   7b1d4bd3ce…c28882now      …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (3 steps)

How this one record is tied to the block's Merkle root, without needing the other 4 records. Each step hashes the current value together with the sibling shown.

  1. leaf  b59d416df1445bbb677330065299d92885914a9d6450ffb799d323d5ba701e42
  2. 01 L b405f791a4d85688c61eb4b0556618fb6d1da4eaaa1827db9ff6b469e5be6b7d
  3. 02 L f326c4bf0bdfb0d9d581b1b646682905e1fc962ba36f352aeacc136bd41157cd
  4. 03 R 31e081648368a0fd424399a328e2e8aaf8d83c8bd4fdffb7574b8b374e2dcd60
  5. root  776d77dd8ffcfd22fc9e43ca3bcb8495567c234ec895f3f9bb9c50f0c8e824c9