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 ₱10.2M contract to CZERJ CONSTRUCTION & TRADINGCities
Transaction hash:
d28de8ff9606bb03cbe562cb0e8405aaa6ee091f349cd5f737931f2485d5c50b
Status:
Included and unchanged
Block:
#3,210 2,803 blocks after it
Position in block:
Transaction 167 of 204
Award day:
Oct 6, 2017 (9 yrs 1 mo ago)
From:
Value:
₱10,224,591.30
Project:
17-20016
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 #3,210 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 CZERJ CONSTRUCTION & TRADING on 2017-10-06.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 d28de8ff96…d5c50bnow …
- 2. Block Merkle root changedstored f31c1c0bf6…19439dnow …
- 3. Block #3210 hash changedstored f81f9be4ce…db1ce4now …
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 203 records. Each step hashes the current value together with the sibling shown.
- leaf d28de8ff9606bb03cbe562cb0e8405aaa6ee091f349cd5f737931f2485d5c50b
- 01 L d26e631f22ad4e4f5b543f3af975710f7794ba3d6df64f466003df35963a105e
- 02 L 797c453904fbaf7d2dd2e14833e56bf98660fdb8c04c0ff7bdcf237c3777b11c
- 03 L d33052511f299749a1f587f94f22ad0b225bba8c3d39463b5a93a21c772d29c6
- 04 R 95ac29e9279d94968cd2d9898562d65689182c011b9d3ffa4a9789f57d2233d3
- 05 R 4bf9ca3ab27fda1a2c39bb923c4ed0a1f3b33cbed1aac860793eb3edf135bd27
- 06 L b5c3a412425ea61b9acfd0917bd2107b210066a91dbae4d1967fa92f8aa57cb1
- 07 R 6eed6fbff8d4edaebfcab225f730bd78a0e9a7b6a3bd09ec20c8cbd3484f2ab3
- 08 L 7e95e1417158ec36357d4aac00ac33688e30030811c804c11547bf093fabfb3a
- root f31c1c0bf632786baa40c03936b3f16b4b9b3c25cbaacf6553fc5df00019439d