I Know Leopard were an Australian pop band from Sydney. The band was formed in 2012 by lead vocalist and keyboardist Luke O'Loughlin. The band underwent multiple line-up changes, with its final iterat
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15448458bec8e5698debc52fcbeb9dcdf8aec678d1838f9ecd42c27d136cda1c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b46f04e-525e-4954-b08a-ccc1eaaf590e.json and https://artists.proofprofile.net/proofs/artist/5b46f04e-525e-4954-b08a-ccc1eaaf590e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebd5a639c92b6c8406473f18da2ec5679da8f11a57804e57a8ceb6a62d6f0ec. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUW131300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37222dd16f41055a4873c33c080a401581f07ec40a62a3dd0f7a63982283318. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUW131300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81659378503e540d518c30f0c5c9d0c9d220d52042eaec24aa44e99204415941. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:48:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUW131400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81659378503e540d518c30f0c5c9d0c9d220d52042eaec24aa44e99204415941. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:40:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUW131400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9829b7dc242ad0ff83e17071fd4101a4a76443eec8a726a2370759f6658635. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUW131500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e38a491f99549f69f82d75c09c6238a55334d3b95c4b757a63314b4d38dce52. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:52:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AULI01608310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21796b62bc56b883c19d23be2282871d677112d414aa1c7788d0786b6bbfeeb6. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AULI01711130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21796b62bc56b883c19d23be2282871d677112d414aa1c7788d0786b6bbfeeb6. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AULI01711130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdea7bc0dcc1a62419dae120aaa3db0755cbd253fdbb27e806f5a8bec05705e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AULI01817770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560e5644ce23382b5b35243cea4506ed09f2991b206bffb63208d0337997fbc7. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X2132954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a7d91422b0367053a58cef21b129e0b7f6d58e3d203fead88b415339574aca. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282155513.