Sarek is a fictional character in the Star Trek media franchise. He is a Vulcan astrophysicist, the Vulcan ambassador to the United Federation of Planets, and father of Spock. The character was orig
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c0d6eadc9f557bc3e97c94c8d14445bcbf880822fb36d1d32ef10b3bc5eb79. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d9485d4-6b1c-4c64-8401-29655b21beee.json and https://artists.proofprofile.net/proofs/artist/5d9485d4-6b1c-4c64-8401-29655b21beee.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df094661f8bd73a5fdcd2fcaddb1bd7fc97162cc2569378a66df218c4ad523b. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/SEXUJ1100303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768b85d9535b1e31c05e18d032f59f68910ee06f12508d7b008e9761e3f4bd29. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEXUJ1100304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3b3de5376bc1c9017ad18aecae73851d8c6f732854b7270235e1a4a84e0e42. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEXUJ1100308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24982e50a26e6947efc0e5f08b75a31f301269ac2b9abdba8171a866c6127219. 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/SEXUJ1100306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c3831122157f34f7099513b3125548dc248715f8602453a17d2b83cfc53b24. 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/SEXUJ1100309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe620825455ee5871c80230a98fe9d8634102565fbeff1d42038904639bf469cc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEXUJ1100313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984450971f4a077c85a317ca37c3ac2ec7d5427a64f6037a8baa8f743cb91fe1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEXUJ1100305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6b6d4050f5233943b20c20a458384f2d8d7736c6616ddf2899d4f42d9b7179. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SEXUJ1100311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1309af9be36593f604d0f394c4cf46af033732c59c4d25cd2a453458c43a42. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SEXUJ1100314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f5dca9d73c01e9494719f6d9a13cb6540a87297ff7a1b632c4cdbf258d07d0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEMBA0800402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5a708c0ffe92b0522f9660c02e988b5b18a9460792f6c3469bc3573651292d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SEMBA0800404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609455da1c5be5b5e4e2d3ab38aa1da4974c0f68c4451304065b82aa6cfed211. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEMBA0800405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d58fde54a96185f8c700ffca41055032b88a6fe3a1c4cb3ab9d78011a6e8553. 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/SEMBA0800406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6492201657532c4767f500e105846e21c46fb92c1843e3886e8d6415bdd954. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEMBA0800408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e70ad105bbb87913d4a502f68f46ba8fb0b6a50b4b8fb2196a091241e017609. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEMBA0800411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31559fe7e1954bb4521232b8aee85dc6112d90f550bbc62de5f804023e8296bd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEMDA0300901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cc09e0cc11a6f1b57f1206695c97f5931ec0416fefbdc95624e8cc0e4402ba. 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/SEMDA0300902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe392ebe045e436777bb51db9376768ec3a23e480e108ff8c6364f722ef5332a7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEMDA0300903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3a75bb8b8e3b4826f5cc8728e7ee47289d67a461c76f4157661be944a2f2ba. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEMDA0300904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5969e56c974f6fb3dc5749cfb1c58182d980f4351755c880b5a9be7312f3362. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEMDA0300905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05e2c803c6112694d49d1751f587311bd8dc310a734202eb6a7c0607895fa6e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEMDA0300906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacd7fc7a31ff7e34826e60f5b6a8c7569fe77ecee08e28e1d9d87e833dddd2c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEMDA0300907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63eeac5b4fd3af7757f2786d1834a4d3ec2e48f68360a8b43d182a6f06dde6b5. 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/SEMDA0300908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b54de69f199807710bb84f9367d167d996aa8938a52bdf773f5e2db27b8e6b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SEMDA0300909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabbd5fb149c31c057f5509dfadc4002ef1f0d9f344ced758413e35f3dcc64da. 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/SEMDA0300910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd502684cc4ce301672b5246d39649e3b9014b6fc2446973d06168cab80ee80ae. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEMDA0300911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045476ea8a06d166e1ed68c160a5f762bfea5e2cc0069d8b9bd6982d286b33ee. 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/SEMDA0300912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03f0321b85fddc54b9e49324fb1e01a902fcb7c7d0162b5475bc64de484d64c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CH6451501866.