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 ₱2.0M contract to HB CONSTRUCTIONNational agencies

Transaction hash:

d5b32e88fa9ea332cfcddc761535523b84a73e126f1b39b37e71fceafa4af3d7

Status:

Included and unchanged

Block:

#1,477 4,536 blocks after it

Position in block:

Transaction 46 of 52

Award day:

Jun 11, 2012 (14 yrs 5 mo ago)

From:

METRO MANILA DEVELOPMENT AUTHORITY

To:

HB CONSTRUCTION

Value:

₱1,983,859.62

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 #1,477 signature valid Demo key, proves nothing about the governmentPublic key

Linked records: from budget to payment

Bill Sec. 5

1. Appropriation
GAA line item · Sec. 5(b)
The award does not say which budget line pays for it.
Not published
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. Cash allocation
Notice of Cash Allocation · Sec. 5(c)(iv)
Not published per project.
Not published
4. Contract award
Notice of Award (PhilGEPS) · Sec. 5(d)
METRO MANILA DEVELOPMENT AUTHORITY awarded it to HB CONSTRUCTION on 2012-06-11.
Found
Open
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. Payment
Disbursement voucher · Sec. 5(c)(viii)
Not published. No public source shows how much of this contract has been paid.
Not published
7. Completion
Certificate of completion · Sec. 5(d)
No completion certificate published.
Not published
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.

Contract amount (₱)

1. Record fingerprint changed
stored d5b32e88fa…4af3d7now …
2. Block Merkle root changed
stored cb488a95ab…6fa77bnow …
3. Block #1477 hash changed
stored 74c83195d2…615b6enow …

Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (6 steps)

How this one record is tied to the block's Merkle root, without needing the other 51 records. Each step hashes the current value together with the sibling shown.

leaf d5b32e88fa9ea332cfcddc761535523b84a73e126f1b39b37e71fceafa4af3d7
01 R e14e3136e4bb46e52d9af85c65c74a4fe3cc2d66697f1eec8ed093fa68599a43
02 L 78a3cd6b51f858ec1c0eeaabcd8347fba610bf39dbe82e9c17c6ebdb7ff27875
03 L 5b5ba728499532a1a9dc3985551d7b54139243b5817ffb3d639c6fe9285067da
04 L 52b9d5933efabef400984333407a140cd873b4be4b2942f9f3797a043f0ac5ea
05 R 6ad0b634b101f2c19918a6ccb9f01976656bf0912fa8ec98ab947456ed6fc97d
06 L 814d33f5677c3ed293355fd5f73b4a8b9dc8670afacf238ba1126680cf2eacf9
root cb488a95ab46db1a0275f3745157360fc10784d16d293df1d8765077f76fa77b