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
APITransaction action
METRO MANILA DEVELOPMENT AUTHORITY Award a ₱9.9M contract to J.S. LIM CONSTRUCTION & TRADINGNational agencies
Transaction hash:
ef0693b8ef617ce72c183e01f4239018204f09147472af631fa5ed804338f9e8
Status:
Included and unchanged
Block:
#4,255 1,758 blocks after it
Position in block:
Transaction 99 of 105
Award day:
Oct 19, 2020 (6 yrs ago)
Value:
₱9,887,881.01
Project:
Construction Projects
Full record:
Accountability
Bill Sec. 3 and 19Responsible agency:
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 #4,255 signature valid Demo key, proves nothing about the governmentPublic key
Linked records: from budget to payment
Bill Sec. 5- 1. AppropriationGAA line item · Sec. 5(b)The award does not say which budget line pays for it.Not published
- 2. Allotment releaseSARO / allotment · Sec. 5(c)(iii)Not published per project. DBM releases SAROs, but not linked to individual contracts.Not published
- 3. Cash allocationNotice of Cash Allocation · Sec. 5(c)(iv)Not published per project.Not published
- 4. Contract awardNotice of Award (PhilGEPS) · Sec. 5(d)METRO MANILA DEVELOPMENT AUTHORITY awarded it to J.S. LIM CONSTRUCTION & TRADING on 2020-10-19.Found
- 5. Contract & progressContract / progress report (DPWH) · Sec. 5(d)No matching DPWH contract record (only DPWH contracts are listed with progress).Not published
- 6. PaymentDisbursement voucher · Sec. 5(c)(viii)Not published. No public source shows how much of this contract has been paid.Not published
- 7. CompletionCertificate of completion · Sec. 5(d)No completion certificate published.Not published
- 8. AuditCOA 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
DemoEdit the amount as if someone quietly changed the record. Your browser re-hashes it and walks up the chain. Nothing is saved.
- 1. Record fingerprint changedstored ef0693b8ef…38f9e8now …
- 2. Block Merkle root changedstored fd3a8175b6…7c4263now …
- 3. Block #4255 hash changedstored 35e802a8af…41170enow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (7 steps)
How this one record is tied to the block's Merkle root, without needing the other 104 records. Each step hashes the current value together with the sibling shown.
- leaf ef0693b8ef617ce72c183e01f4239018204f09147472af631fa5ed804338f9e8
- 01 L ee3c2e62b7115b2b2b16d8f37480c4cdfb7ce3346ff2c89d9350cd71edb3b0fc
- 02 L b28efdab717ede6b0352da6e6c273cd08705b327af9e4a69c26423e99f444ea2
- 03 R 97f7d8e7161a5d9223edd3df63c8b015f38efb215eabd126d6217e6361ead55a
- 04 R 308f8abe69233ecabe89d02a9feced378a98d694de068667b98603829469afe8
- 05 R c2a43c136a949b6a94b29da033552d8b6233b1ea94315a54891e5e2e98d88a2d
- 06 L db54d7b104ddac7ae8c4db2534fbede65dc34073743147d257dd017eb0971b18
- 07 L 2cf52c3a26e678062e0762e4f9b95afa2e1adb9794aa6d57c533199f3e0199c2
- root fd3a8175b64be0545545cf01bb7da3578fbe9b73b9d5d2a957c98077937c4263