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 MANDAUE, CEBU Award a ₱2.7M contract to JOHN ARNE CONSTRUCTIONCities
Transaction hash:
a0c6900a61797546c080203fa1e2f4f5410965dac06248c7ef9f1235da4fbd60
Status:
Included and unchanged
Block:
#2,705 3,308 blocks after it
Position in block:
Transaction 16 of 24
Award day:
Apr 1, 2016 (10 yrs 7 mo ago)
Value:
₱2,698,608.48
Project:
Const. & Rehab. of Drainage Canal Purok Ampalaya,
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 #2,705 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 MANDAUE, CEBU awarded it to JOHN ARNE CONSTRUCTION on 2016-04-01.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 City of Mandaue gave a "qualified" 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 a0c6900a61…4fbd60now …
- 2. Block Merkle root changedstored 8b2ebe3876…0e42a3now …
- 3. Block #2705 hash changedstored c8a3b5b37f…716757now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (5 steps)
How this one record is tied to the block's Merkle root, without needing the other 23 records. Each step hashes the current value together with the sibling shown.
- leaf a0c6900a61797546c080203fa1e2f4f5410965dac06248c7ef9f1235da4fbd60
- 01 R a3c239f45d1c51e106cc4524ff61ff4edc8544e5ef360978b92f458b09061898
- 02 R c27a20c45c45686e1802ce64a3fb00b5984e5e11598910e607c8097909a3dbbf
- 03 R 2c55112672fc754aeec627788d13a0257bebe9370fd7af8a66dcda44b4e72e37
- 04 R 7f80fa48950352b33f31ed509c766f1ae5ceb517ef0c70f980f502f551a5a48a
- 05 L 6b82dc0e0d1260e00e82d992901ff318916d69c431b353bb05d7b320fba8179d
- root 8b2ebe3876bb2e910c11a5e0701f25107a1cb1045cfebb66f8f4de461e0e42a3