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
CITY OF QUEZON Award a ₱5.4M contract to 4 DOUBLERS TRADING & CONTRACTORCities
Transaction hash:
b15f264e9f282989b98a17d93633fd792f3955fba97c4823f0188341615927fa
Status:
Included and unchanged
Block:
#2,927 3,086 blocks after it
Position in block:
Transaction 159 of 218
Award day:
Dec 7, 2016 (9 yrs 11 mo ago)
From:
Value:
₱5,389,734.87
Project:
16-20001
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 #2,927 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)CITY OF QUEZON awarded it to 4 DOUBLERS TRADING & CONTRACTOR on 2016-12-07.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)COA's CY2024 audit of Quezon City gave a "unmodified" opinion on its financial statements (not specific to this contract).Partly
1 of 8 documents found, 1 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 b15f264e9f…5927fanow …
- 2. Block Merkle root changedstored 7aa86abc49…698a9cnow …
- 3. Block #2927 hash changedstored fa843e48d8…cbbff7now …
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 217 records. Each step hashes the current value together with the sibling shown.
- leaf b15f264e9f282989b98a17d93633fd792f3955fba97c4823f0188341615927fa
- 01 L b0a99cc011bedefe2f476b8e24867e5033d5dd8692fceff683e962e8215d0db2
- 02 L bd1e221930a4a0d14d2533e8925da23324531ec9e3591a3500ae4ab95ab40085
- 03 L cf188dc87a50a9228dc9229dcef6e8713e8b6475aa5a44395afb4f46598f05d2
- 04 L 22aa8a52e08dc4e7ba90e59ff69a71d59993d5fdac9a27bdc94489d6af5bcbf6
- 05 L 9157e1dd3cc187e7d925e6ae8d2f3bf62a5afa0b44e65dfe4a4abf935fc950e0
- 06 R 76db5b7212452ae5999bba872a79563bf7ce715a096d88ac46fcb9934ef1ce48
- 07 R 27ac7f3370eb11a03269d2db6ed5dca083b32d627cc6701df180895c4a5430a2
- 08 L 88d1d240636f159763aeb9f673893790a1563ec57d62142fc8dfc9d36de85f25
- root 7aa86abc496970291f6128a4e20f2a272fcc996ac4f7939a5715e9a116698a9c