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
PROVINCE OF CATANDUANES Award a ₱961.3K contract to CHRISMAN CONSTRUCTION AND SUPPLIESProvinces
Transaction hash:
03bf6d8902ec7fafcbcafdc6c86bdd47d3f240f212024831af6252d5be2f32df
Status:
Included and unchanged
Block:
#1,377 4,636 blocks after it
Position in block:
Transaction 0 of 33
Award day:
Feb 13, 2012 (14 yrs 9 mo ago)
Value:
₱961,289.20
Project:
Rehab./Concreting, District II Barangay Road
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 #1,377 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)PROVINCE OF CATANDUANES awarded it to CHRISMAN CONSTRUCTION AND SUPPLIES on 2012-02-13.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)COA's CY2024 audit of Catanduanes 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 03bf6d8902…2f32dfnow …
- 2. Block Merkle root changedstored 3a2ca82a00…2d6118now …
- 3. Block #1377 hash changedstored 63d1bffdb2…bfd1f4now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (6 steps)
How this one record is tied to the block's Merkle root, without needing the other 32 records. Each step hashes the current value together with the sibling shown.
- leaf 03bf6d8902ec7fafcbcafdc6c86bdd47d3f240f212024831af6252d5be2f32df
- 01 R 17055a1787e006d158349c2cf2eb15122f47790d3f92cccda0149cea025ca50d
- 02 R b672e28a19b8470bb6112bd5be4ea51c05e0dc0fa0bb7bcabb3236d58b875981
- 03 R c6905bee719bb8b179de42c5f343ff5599ec3554eca499eececba3ef5ad8d00a
- 04 R d0b616b95cecdb5dddf701247af72744f346894194e60693197cf26a20ef18ea
- 05 R 172cb89f56ac788d05ce240fa08d2925b48ac6716a7cd439710e2624cb9b1097
- 06 R f451855680b63ecac5fd4ab3c155baf685f3e4d7151e7f32ebd0f421c12ca6a4
- root 3a2ca82a0045cd4fde9eac970d35cafea16e4dc9ebe20d065850e39fd72d6118