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 0x8209fc089870870571c62ab6dbb405983469ba144d0ba841f4bb850ef4d6617b. 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/92e420cd-0aa9-405d-936d-b5a1ca59062f.json and https://artists.proofprofile.net/proofs/artist/92e420cd-0aa9-405d-936d-b5a1ca59062f.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 0xe412500349c3870cfa051c6f949fd0c6dad8f7918291ff6013db0eb412bc68ce. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USX9P0915483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4747fd7451fffa29a27412e69bb1407064d094ca352509d0e0589bf9b7051d7. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:01:56Z), 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/USCGH1089587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb6fe6bb826981540f4c1881c9545bec2c0a41a5d5f198ee31562b3d210a99b. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USCGH1089588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31a5ffe57f7601c35cfbfe7a19e3f9009e2a8ef29fc171f10bc5e388d8d0b2b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USCGH1089589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954fa852f84d9e44f84d9376e19ac3634f1cb0d578d3541759161a8106adb6e4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USCGH1089590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b03753e8aca60fd58b388e2a3bfe38c8a75e38c13353eca54a8c459249eea9. 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/USCGH1089591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca594a7bdbcfe18c522a20ab652e6460c48209169114a906eff8df6b6967ac82. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCGH1089592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b26abbdb75e8c728faae3f21d60288055c855641a51dccedc96488d5f603441. 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/USCGH1089593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e31e525b59abb42d70438df586f7af6b56b753900880bbe6889728bc195d428. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USCGH1089595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc473bdd8b05ce7694d973087db46e13f9f8afdda3df4f6cba9fa1c2a59658494. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCGH1089597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfced0fc9a39ec266da089610c76ce8f460b3057d1106bd5d43ce6bc344289a9. 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/USCGH1089598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ab72e70c89703e15627fcd239743d247ce7bb4dec50062eb46b6a4b89b89b0. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USCGH1089599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785464bc3fc2f3882c1b68ccf549cf15e5586a17de1c73f7d92a12df31005a95. 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/USCGH1089600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9da6d3cfb41adc0d498942cb535798ebb2fdd6e64ad23689a9852c6c0fa9d59. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USCGH1089601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252bdc60bb98f3ee2809ee30b24ff709d04526b8470021b758f81567abf433ab. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USCGH1089602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ef6f7ba17590163736ecdfb7d5e2bc3073759e3603fcda1f8ebc6f638acafe. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:02:57Z), 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/USCGH1089603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3a28ec57fa363869904fa81c0f18ebf4699ce53730b4f0a296bb3904666a21. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T03:02:02Z), 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/USCGH1089604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c39450085cc44d69101eda344a3cbdb31c2c8cb4e7c17f8793097531f002165. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USCGH1089607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244f913558169557e8d001096b4e13ffb31768bb513f2f101e7cddfee3818bc1. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USCGH1089609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd888e4189c25ff67f9c5fdfe3a3b48ddf8d5d25f948cbc22cbdc1904192db1f0. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/USCGH1089611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a4a51287cbe0509384021c0f925ba13c10cbea5544fedfd281e6ef75d27148. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:49:59Z), 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/USL4R1915097.
Baby's Boat: The Best of Kathy Reid-Naiman
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785464bc3fc2f3882c1b68ccf549cf15e5586a17de1c73f7d92a12df31005a95. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:44:20Z), 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/USCGH1089600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308d04f1de1cc7da7edcfeab5e45475ffae638b0a9a97d2f892c44648e977efe. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CARC31600008.
It's a Beautiful Day C’est Une Belle Journée