Bethany Sharayah Cosentino (born November 3, 1986, in Los Angeles) is an American singer and songwriter. She is best known as one half of the indie rock duo Best Coast alongside Bobb Bruno. Cosentino
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 0xce354f414e82beeeeaa4b53df96c9a90c5b7ce0650f99aa116779c5aa0c19f58. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08f63684-26b9-49c2-bdf9-38ed990a9753.json and https://artists.proofprofile.net/proofs/artist/08f63684-26b9-49c2-bdf9-38ed990a9753.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 0xfca0eadec57aac73eb1edfc655e8e7d4964f3c4bdc35db9f25061264598ba61e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USC4R2332933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa7d28bbe05d67e1ad9ecb0371547ce44bb3f7354972bc0b84bee5cb22622e2. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:50:33Z), 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/USC4R2332937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca0eadec57aac73eb1edfc655e8e7d4964f3c4bdc35db9f25061264598ba61e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USC4R2332933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf737aec05ac59f8e5afad020a48378f922d5b8edf1a250ad0ca91ab92d3c74e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NO8WZ2404080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab46aac133f7325e7c8910efb6ddb98e93bffb282c40fb38d0573127cc0dfd09. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USRC12001217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980edf746d7d908ee0380fa01cddd062321314ad1ce6a1212b22456939239d30. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USEP41123008.