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 ₱4.9M contract to DAHL CONSTRUCTION CORP.National agencies
Transaction hash:
20e8a2d3cedcb1728e4560628b38261daf48197f5f949fe8f71098cb192cf699
Status:
Included and unchanged
Block:
#5,087 926 blocks after it
Position in block:
Transaction 44 of 353
Award day:
Mar 8, 2023 (3 yrs 8 mo ago)
Value:
₱4,933,771.69
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 #5,087 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 DAHL CONSTRUCTION CORP. on 2023-03-08.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 20e8a2d3ce…2cf699now …
- 2. Block Merkle root changedstored f64728d96d…a44627now …
- 3. Block #5087 hash changedstored 3405dbcf06…66d62dnow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (9 steps)
How this one record is tied to the block's Merkle root, without needing the other 352 records. Each step hashes the current value together with the sibling shown.
- leaf 20e8a2d3cedcb1728e4560628b38261daf48197f5f949fe8f71098cb192cf699
- 01 R 212d9d590a8b9f5f09b45eadd4a895eb2a33c03e508e7d3ae5af781b0d01e663
- 02 R 3e21b3080dad8a6e14b8b01d680fdc07d359aeab2669ec29aa5d1e9b65d819a9
- 03 L 33b82dfc1f210bf335e4cdb6efc9d79a246f4c1d5df68af7cffed9330d82cb12
- 04 L 9b5d148648e01773b0a2431c28b367aa95f8bcbf87b164fbfb5d7691f871fbbc
- 05 R 137ca22d6984d2d971da2803bcd53b3ea8d5c71b341d172c16e6aee3de8dbffb
- 06 L 978e2d56d57b26935fc7dfa06867628b5d1f78ab4fb570abcc7d39bbc2aa6032
- 07 R 22541e418bf2ce73586434449889f97891913dcdcdcb4c7c3bf14e520a6d6c18
- 08 R f630601fba8901d824c4880cc9057cad9e651a8c2ef1b94349d0553720d2f2ab
- 09 R 6888e1fcbdfe75121a15c563f6fc384bf3e8c7caf463d1ec7f4dd0a804becac7
- root f64728d96d24196e6980aac3896e85b36299c204276777b87c96d2e1e9a44627