Rayner is more commonly a surname. Surname Notable people with the surname include: Adam Rayner (born 1977), English actor Alan Rayner (born 1950), British biologist and educator Amy Rayner (born 19
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 0x8411dc77f0e1bac703c6251c868aae1913c8137d04bfefbe080336ef80e9d42e. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac4488b7-23d6-4b40-8e4b-0c57e98061d5.json and https://artists.proofprofile.net/proofs/artist/ac4488b7-23d6-4b40-8e4b-0c57e98061d5.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 0x9cf15c31ab0ad40fe7999fddd8a285edbf957e64ebcd05ad369b559133be5d51. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/BKRYY2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6bb20d9fbf3d21e01373f5bdd0bc3ae4a9b69f6e9b0019bdbce0f11cba03a5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BKRYY2300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4512b0ca06c5663a193ef8801f0739b59036942fa6aaf113343347f5852daa14. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/BKRYY2300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebd8c06970815f26df600ea0694714c04b5d438ceed6f5bdf11a7a8741b0081. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/BKRYY2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304d775e1ae6af471a17b3771a975ee2e1a0531d3e3de7142cf914bfd3612c84. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:35:10Z), 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/BKRYY2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c97de0e4209d182a74a98b541ff3e39828f887ec2c1d792f25aec158aa0a186. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BKRYY2400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b04c65e1dfc2e8b01fbd92af05da6e4190733007a9a254c3eee5472c9b0db1. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BKRYY2500002.