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 0xd2c23e734008c0b7d279e89ac1d9d55fcc39484266beb3584a5a1971965f19ef. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b73ba75-33e9-434c-8aa7-c1669db393e7.json and https://artists.proofprofile.net/proofs/artist/4b73ba75-33e9-434c-8aa7-c1669db393e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Winters Breeze (The Remix Package Part 1)
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 0xbb3c776ed70b61534dc667021054ec65e54fc8221684a34b423236bd3d2d0ddc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKWRY2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe626f0abd3c07345561161de218b60f2234fe8207ce26d313270ad4cf0002aec. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/UKWRY2100011.
Vinny's House - Tribute To Vinny Da Vince
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f415061025a7e2bc1b13986b9874ed776225f7fb48bee8b23caa80d51e074f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZ5FN2344604.
School Of Love (Incl. The Moodyfreaks, Ocean Deep & Lele X Mixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf244a461519fa5def808eb8ebc5c32ea91d878a6b6ae32fb8fd3b77c1727d3bf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEY470918159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf72639bb43b8ce485d0627392964edc9ffeb89b8285086edfcedd570b183d75. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZAIQD2000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa124be4554c3c331d9276f0fb5923c04078079677fdff48f27a3c11e67317e. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USA672100165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffeb11880552337cb7b7d1a98eb75df4ffb09299ec5729ad8ae9c2fb65349c7c. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USA672000239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da7b9d43d4490d558c97f759ad5f42cf8f23a86b9ddaf469c038e3f73a92eb2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBKQU2233015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2311d9bfd4c44359cc2bcf30a182213186c2cb68d72263b900acdf8d93cae47. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITZJN1900148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7948cb0b1170518b190e61f87cdfe6a985e43c0d2b28bdfce961f1137227e28e. 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/ITZJN1700068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426e517df62e1a81b91b454dcbbf0eb5e3120f91597d8f2038a883a6b0629950. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITZJN1900155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62d61792cdac52c7dcd6cbce209238811458f5b0c6aa1bc3f26aadc1bc861c4. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ITZJN1900318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fe9e345f5ccf0355168729be2b83892be2a4a7679cf913041eafe18120a419. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITZJN1900282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcbbfc57e7d47f87ce79c664ba827c8712c8119b0b6b754c2cc3b581b11faedf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITZJN1900177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27e91157dd45448b5881ad4092c39eccd7b0ece9f7cd75a4a5249392d8cf555. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITZJN1800083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d848f567e5169639e2ff41f1705f1eacf239d3a74d429d163201085d4791ac. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITZJN1700111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e80d9df4a781115ff112925cdb4eb17c08af34ef396a22147d65d370ff063f6. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/ITZJN1900335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896d5067c84843b94c1106444ff1dd23a98411036cd7e68655a88009553d19b4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITZJN1900134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2b76df8663d20e16ba44fbc5664237ce9a3dfef5e381f8fbf5a15c0c250695. 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/ITZJN1900304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957d7a2b72848e1449ae162a119bc487aa2f32eb1490dc9a5906d758249df189. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/ITZJN1700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e8a64fa0e276bdccaf3e5746f9b8eca586a3a0aae7f002687383edcf69fece. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/ITZJN1800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7e5a4d37ca967c8fa4980860328aeb8cc72d9faca77d68a3716d04a212713c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITZJN1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a6e9fa600aadad794fb10b1173253d06cd397f80612025aa47cf3749d71006. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ITZJN1800185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398a5706a961745b3483be2b02c73e56f7fb6e2b9b9a323ede8cb8898bc4d1c3. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ITZJN1700104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11efc6f768436e37be81feec97d62455bba9756728e9e2b99c8480342fcc224. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ZA92L1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3469d8f848fead670f48949cd4a014ec37e56e7696259135dc59390eb0fb80. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DEY472377321.