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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 0x0861f865ff7c1c8a2b13affb9629c4c2dd3e93321d31a541c317fc90990cb790. 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/6fb872d2-35e0-48a7-aee4-b842f7608901.json and https://artists.proofprofile.net/proofs/artist/6fb872d2-35e0-48a7-aee4-b842f7608901.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 0xfd02f518eae456dd8c36d57bb34fc043002c954a21e92d47eb29a605a9dec4e1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USSP30422180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94db5f97524bfabde68ba4e76f28ac82fc81ab340fc1a953158c43066d48cc66. 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/USSP30422302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a00ea2606db93fb92f93f479f17b7b79d207a5bae1855408962a0b127989f8. 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/USSP30422303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe417202a81390f54d0d51b2fecb43b4ffff7fa9d8b478382afa26fa5a9f6449b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USSP30422299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3018e302bae16d8c04b076d5e176c1b6521a36c1a61a753a28c91f9c115c069e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USSP30422181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699157b06b595f79bd125af43e20f7c998855903ec5bb6c5e431138f75994369. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USSP30422301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532971665b356ed15a541996fc807f446b5d98c20f65423bd143fd18b6de2727. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USSP30422298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd23cc8f81b8300a46e46eedb01cfb43b3987fa8d08a95517c1e9ab096c8bc14. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USSP30422297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f7031bd1283a88ffdde90e802c69793b91da124220749cc004b84fe848a2f6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USSP30600058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d88df3650e379edf86b4874f0f8cce7f80caeb131352b436609341dd5b7c14a. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USSP30600061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c9eaba31451eb563c8e9c696ae84834cda09ce42b7e6e570f868c0a6cba068. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USSP30600067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d14f743f62a417790d5f7628d34135f1bc13d7ee79fc944cb6178d88fcfd5e6. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:13:01Z), 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/USSP30600066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2866343d4aebc41430a9f6041c44ceafe09a1f0a7a22ec160c94ff694091da. 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/USSP30765803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4c3e85ee7a35d2667987c5ced3241d8af2c8761534ad8a4165b89100c517cc. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:03:03Z), 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/USSP30765807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea9fb94ce9f74ba693bf1d4a31b6b5cde65a8157e9d42e22ac523d723aedde0. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USSP30765808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d66bfcd444ba9f62f24ea1fcd4f99564f2e953d0e6578773b0085d8e1e35782. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USSP30765812.
Premiere Performance Plus: The Hand That Holds The World
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156e365c672147a89832f9e53e24bcfa348de70efef8c7cf30e8d00efa439d2d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USSP31000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7dbe9b5f370ebe84bfeadb4ab43edba92d2a4dbccb2eb86f953e16cd85f4c1. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USSP31000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12987bb7577e6813fc6dc5e0e8b72b86c5a84e489926e2638fb697beb2eb5a2. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:10:40Z), 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/USSP31000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d49ea3a98b6dd25d731e2c610393cdecf967ae8f864f41ec9de34ac5ee1e0df. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCABD1226755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb35609b11a2904f121eaabbf2faa94b3fc1b9760dfcb9d8bc58f50eca648796. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCABD1226758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3813710ccabb482150e25cbf1a543ff2412972d2a8ba77a7b1a8f49eb4bf5e31. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:06:54Z), 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/TCABD1226759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623f4334c2f7539ac6889d56b4eb326e37f79a0c317de19525ad3c16ff03cabf. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCABD1226760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb126b9d52a16fd93ed084c5408c53b425a52e224ff9d605735f31a81e97c704d. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/TCABD1226764.
20th Century Masters - The Millennium Collection: The Best Of Starfield
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151df075f2129ac56122ed732cbe0db03d98b713fa693584b2042defe27ca56a. 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/USSP30765804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc7dd5deb789b280840828af4f0d061c8f9aef8eb50ff3e5169fe9f19f3c710. 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/USSP30765805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151df075f2129ac56122ed732cbe0db03d98b713fa693584b2042defe27ca56a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSP30765804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8ffe39993724b923fec560f13f38e5288f394b69fc1d8388fb589c4f4ca4e1. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USSP30321352.
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