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 ₱22.2M contract to STRUKTURA TEKNIKA SERVICES COMPANYNational agencies
Transaction hash:
b8f85235abed117fea9f0f6db22c0f1c82adbe1893f1c73680b2ebcdc997ac08
Status:
Included and unchanged
Block:
#5,741 272 blocks after it
Position in block:
Transaction 180 of 235
Award day:
Jan 13, 2025 (1 yr 9 mo ago)
Value:
₱22,231,723.72
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 #5,741 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 STRUKTURA TEKNIKA SERVICES COMPANY on 2025-01-13.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 b8f85235ab…97ac08now …
- 2. Block Merkle root changedstored eb5afb2b13…a3e03cnow …
- 3. Block #5741 hash changedstored ef10d9b337…a70928now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (8 steps)
How this one record is tied to the block's Merkle root, without needing the other 234 records. Each step hashes the current value together with the sibling shown.
- leaf b8f85235abed117fea9f0f6db22c0f1c82adbe1893f1c73680b2ebcdc997ac08
- 01 R b9ccaeb9b204d9afe2f7845e5b4a2d94a3389836acd5a3c5969bb18f61e4b74f
- 02 R 4d8a100a0c559742a74efc9cb2fc19cc67d3dc9bea172a3fc57ed5a592b99dca
- 03 L 6c1741600f628d1584c0f1384140fa98053251d7c484bd2e671c1d5afcaf17a8
- 04 R d4270440ccbc6a950411dc2cdbc3934d1db15f2b7f6143c5f8654ded1346fcd5
- 05 L 689794487c93af8db13c963698c2301f0402f7ccf078fee080f97f0e64eb22bf
- 06 L 299b539266d57fbee396140747605519a0377741a335bebe23f8682c8389d8a7
- 07 R 0cb7767e19fc3c25c0a6795c6c3d855d3fb4807483b7727b613529e9d543888e
- 08 L b19f5129f58568fa434cdc86b96d71d82a04992d0d770d07159e95288b7d4295
- root eb5afb2b132aa24a31339aa908152483f6345dbf18be8bf058c296e053a3e03c