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 0xf95d9999d4700dd8ff12560c1495a70b05882c6cb553604f853c79565e0f8888. 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/a9c59106-dc12-40d2-ab33-24efc1a34679.json and https://artists.proofprofile.net/proofs/artist/a9c59106-dc12-40d2-ab33-24efc1a34679.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 0x402b5da74ce9c63357920edf081c2104f6512e326db3ab35e90fd1a0b426aacd. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/ITK260200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7174b7ff7ff789315b1da06c1a67f80e29293130ad6ed370ed792668d6d6d9. 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/ITK260200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659c2a159eccf684bb21f756dc544086de06d9d6fa2dead886267bd72f521110. 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/ITK260200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39dd94b7e9e4a649469f99f73b63757823c3cbbc359787cf30fd09ffddf73812. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ITK260200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7621dc7e2246c6f9160e2861e81236b9b53b84eb6d860d1d0244a729c2f7eb5e. 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/ITK260200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ce5e9bdca21b94abd565b936923575e732cb378ede0ccfe602726455b4fd16. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/ITK260200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9602348d1b6ca7defb68e70aff35378b378a26470a5546a97acd77d47b7440ce. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-20T00:28:38Z), 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/ITK260200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a48252adad389c2c8c5e6f62f3ecec9a8890b2860fdb5a9a7d66d019299362e. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:03:49Z), 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/ITK260200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f1a069ff5db7fd88c6b0bfeb0033d9764856e9376ab54685f68b6aee79e3fc. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/ITK260200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409b0c175d9044f553c2990cf31ad39eef42669b83736f6859a5643168958702. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/ITK260200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b9a05c6513254b80867ed9ad0611b5daf939039c75dfc6e11b8463e4ecd99a. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:23:31Z), 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/ITK260200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c784bf30f50ed82ed75548f93a5686b9f85a365dab971892111a805480dd12. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:22:54Z), 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/ITK260200020.
Across The Beatles: Acoustic Revisitation of The Beatles Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f2e898ff675af02eb6e7fc29cb3d06d8a340377766e362766081f81012232d. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:48:52Z), 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/ITK261800076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637dc453240c8f6121b1adb2c9c143671649aa7e0bcdbb649cc6bae85dfce025. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ITK261800078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35abbc27b16b7fa28e09977d37640b8a1c6b8c498e3ee483c5f3a227facbf22. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:33:24Z), 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/ITK261800079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dee55e11d30ee40dff7884ecf6ed68f805f2f3700ac99b61da1fd05d1ff204c. 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/ITK261800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87292bd1349550aa0747892de43df970e88f3af81bea5185a57b4974f4cf084. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/ITK261800082.