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 0xc266b548b86cb8e16f95f9fc5447f2bcd8e01c4e30ff72839c1c72db19ef16dd. 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/b0bd0b80-f69a-45b5-9e74-cc984ceb2175.json and https://artists.proofprofile.net/proofs/artist/b0bd0b80-f69a-45b5-9e74-cc984ceb2175.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 0x4784797ef55d9f99dde77d1c66839a528f427efd7b96c06149cfd90c93c10691. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/US3DF1209584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175f60c4413d2a9afe22badfe4bae1a93a011fc159ba96b26be8bd58f71d0078. 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/US3DF1209586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cf1c2097eaa0af06efefd17778cf8336ce5093722107c05ae5df17772831ad. 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/US3DF1209591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381d14a90eb63ef9c2e66e593b82b4653219b2625b3fc6e29885df18e782bbe0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/US3DF1209599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4416e1c28c4e907b6db85a16fd4cb972cfcfd632b8eba7ed15b46948546d9821. 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/USA370507633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a18c2753f9f4c3fc0fb701457ff6bde06284616c2b9839583f2d3f10e39d3c1. 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/USA370507636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b12f2e0c7e45dcf111bc3cd9a16c88a3e3c3bf6be21e9a64f6c4d1e467c976. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USA370507640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51db75fe5aaef1400bdc599323eeecc32bcc47c9f23bad174926b235a662dc88. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USA370507641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7ed85dc01613363c1744241342a840ec43855ddb80e11b59431d68c42bd3ab. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USA370507642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68514d12e241dc5b35dbd57fa6367219b4e0d976bd2d0af0c9c6741861c80e3d. 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/USA370507727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d248219a2984c40e7a751534556eaf9eae15645895141aa57c67a785709094. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T13:00:09Z), 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/USA370507728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662cc6c0b59b26e25daf48b6f04a0ca0c572a9b453d7e7e4da2b27a8a1da9bec. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:24:46Z), 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/USA370507730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5c62248cb0db15151fca8eeb980d2e08c83296ff793c0c1c4abcf35bb349aa. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/USA370507731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bec4d0eb982be2d3a2f4512b100cbff8a24379dc8f2d4854abe84b5b9f27fd. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:59:17Z), 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/USA370507737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385c322daa6902c8b64156fdb50df0e893ae2d6520d63c206f5b7b0e078053e7. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-22T00:34:14Z), 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/USDE10701380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0a3cc945c68f1929056db8c63d251ad0c2dd09d881ada17eccca67eaf04df0. 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/USDE10701379.
Funky Cold Medina (Re-Recorded / Remastered)
Wild Thing (Re-Recorded / Remastered Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e7ee06bb965e225029bb93ca61dd3f42fe9307488154c4ea95926bf76026b3. 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/USA370946302.
Wild Thing - The Very Best (Re-Recorded / Remastered Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d043c7ede47445cc145ccfbb9d75d076b212f81321e20dfe14a9343ed520ef2. 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/USA370987303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d8e61c32a2be939750afe8dd113b900893a39a5dc6b00b3984301bb62b2fcd. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USA370987304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478335bfe3f04cd7a35967f10baca064c741ba7defa24cd47520620d402b82cc. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:50:54Z), 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/USA370987306.
Cuter Than You (From "The Proud Family: Louder and Prouder")
Cuter Than You - From "The Proud Family: Louder and Prouder"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ee2606060c5b478e27f7dd10902788a2c4f68c494a184669e2e670c65aaaf8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USWD12213603.
Funky Cold Medina (Re-Recorded - Sped Up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0903659c53b5d326e1e050ff54be9f136eb0f6e99e11f742d95768538b92de05. 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/USUYG1034831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945c84c62d66874f0be9bba59fe7797ab23fc6c3e38cd570378af492438ca74d. 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/USA371058244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba339f3b51359a0f7e73bf2f0a05d3a4cbed5b2bed941fd229f60c6d5b2de6d. 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/USA371058235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbf5ba5ac5ed7d7e71d839af9873546c4a2884172485bb90cbe0bc097e228bf. 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/USA371573064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbf5ba5ac5ed7d7e71d839af9873546c4a2884172485bb90cbe0bc097e228bf. 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/USA371573064.
Marked For Death (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175406ab5451d9b66082e25843a279e21c6b02f6efb46666af8ac50a269b3010. 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/USA370507732.
Waxing Off: Delicious Vinyl's Greatest Hits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d684d781b305d485d4fe82853c06bb91abb88976bf086184fc0481f63e6cf1b. 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/USA370513566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd52ff17a035f96f885eefd3bfdb682f915a7c1b23130f6e021eae32fa1ec73. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA370513569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20b255e93f88dd57212e019cef5adac10624bd17d42a6ce5b360c7e3b15c711. 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/USA371359265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ecdeb23c58b91237af722579566335f8780da18a782c43dd87ca940ea4c72a. 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/USA561418644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4416e1c28c4e907b6db85a16fd4cb972cfcfd632b8eba7ed15b46948546d9821. 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/USA370507633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c701c517d0fe1bd3b2cc5ef1448a0515b98c998d1811e695ccfe3141142db51. 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/USA371142400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18917b536754d08a2db1d3484317538a60059566b820954167eb6463bd29b465. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USA371278687.
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
100 '80s Classics (Re-Recorded / Remastered Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d63d24d074ecd8496bee64954e39fbbc7a3e7f8e436169bfc4097418f29ce23. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USA370961714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2571c6c88b854f61818fdd3a246496cb0db5d96823ddad837448a04e77cb2c96. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA371122435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c000a9ef2a328117157efbf93e279c7b26cd251e9c20e82ae2fc2972a777d7. 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/USA371122445.