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 0x46aa30fa24b4d9bff224f8540ba390120295e82d4162d1bf442f02c2fd8d649e. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83f451f8-f518-45b0-ae98-2ff9330c2fee.json and https://artists.proofprofile.net/proofs/artist/83f451f8-f518-45b0-ae98-2ff9330c2fee.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 0x449f9efc75c2eff7bdc092f3a33e009995b6cb831df4584b2039a79ebc0b94c1. 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/GBKQU2360556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947194ebcb4e5f9a9c87610ea7d9b31bbcb05840db87e580002c86080986f065. 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/GBKQU2360557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72682401e92ee0400a3f4d68d267685fbaecf417b6e4a7805ed2a6bafc3da2b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKQU2360558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9aa34e7d73936b8af17d1d9f6bca2ff9766701f92404506d194707dd5bc594. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USGGP0802101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538745387f32c43a326be6595360cc26e4e9433edcfb9da25ced4bb92b9c87ab. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USGGP0802105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90cb397c1aa61c3969782e6c727498250cce5fe31a2f5fc1759d7f663d9b3d5. 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/USGGP0802106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb9fa7317a1020930c109a654a6348bb296a1f3facba3d91a22e56d822dfef7. 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/USGGP0802107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fe5fe5d00581cd329662372d422a0c7802bc20121c088b96bd6b89b1f9523a. 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/USGGP0802111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421a185f90dd439143023e2e4ae576be82ef56acdeac8d544a291ab7a7c21be0. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USGGP0802104.
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 0x58860e0fb282ea22f97fe0c555ceccdd7b5e81d288c7da1d1fb7bab20ef35949. 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/USGGP0712001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93493a798fbbace9b8bd855fcb7ab892d3c091c5cbde1d509a15057a3feab308. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/USGGP0712003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c04e36ddf088e19a4432c55cd38ea1d75ba9aeabd785520a9d23d22f7b4aeb. 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/USGGP0712006.
Time To Call In The Carpet Cleaning Professionals
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569b1e050ea1d20ecd6c6ab71090d89e69f96edeb4eb8f98cef6c3e1aa84a186. 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/USGGP0712017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a3b893935712989fe2f49d65574f2daed991c916cd44bf86ab26134c3c1473. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USGGP0712004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ba8b50915dee4cab3b67935ee04ef5b8e1414db4cc5beec771b592d845cce2. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USGGP0712009.
Fuck Anyone Who Wasn't Into The Stuff I'm Into Before I Was - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986fbe3f563c5127e4664e7bd3fc35d75344c1a5560a602e3133b6adc3d9af87. 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/GBKQU1162387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b978ad2ca636d099f808dbb73f50045f07936ce4e1c18582e9f2689dc98e087. 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/GBKQU1162388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765374d285a942b3cdceadcc33cb84d143f640e5ea318a377ef4bb17c71ffd77. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBKQU1162390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc0d39cac2043385bb49fa215cf9382e9e4749c6d65325055f7f349cef2906f. 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/GBKQU1162391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140afed5b8f29c3c6555a1427e8a9a7a373e037accd6e49056842012740fbbcb. 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/GBKQU1162394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a68ea283e8aa9535835e93ebfd0ca447fb6b627242bb969719189b123ce082e. 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/GBKQU1162395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f8438f94886fdd0a9c39194318abf214f69189497aab9c979272b04a27c0d4. 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/GBKQU1162396.
The Auditory Perception Of Idiosyncrasy Vol. II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf4cabdbb40d83bafe49c87e52ec631cb2d5b0e272349d5b6bdc6abe0469d32. 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/GBZR51400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee20f07bd3fb5cc6f655a7fb9d76cf413adb81312dd60cc2dce274f2c392584. 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/GX3XL2100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7674c00d7cb79962da2cf650eba6830006ac1ce074499a5e1e7da633967666d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GX3XL2100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241337d08128ca7116a2f6f02ab53192fd0fdd58dff5d272889a20e86f1e33a5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GX3XL2100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb863501ba6c0a68906a43e3c507b53c579c3db13cd5fd045bae3b51d5c69a511. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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/GX3XL2100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c4da4bc6e843e6db77848692c652eda7c09ae9425edb27e26a5f542cb91abf. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GX3XL2100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6fd7d29878fa988d8b028ad1ae81adf0d29b0a35881788d58200792b451443. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/GX3XL2100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b0544d03d390b177f8cb58e462e08ef86330032c0abd1bd5dd3cf1c56d0eb6. 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/GBAG51200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63859b4152bb16dbed669ad8fb78574b8cad9b0c1862cbe4f8a57dd697bc66aa. 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/GBAG51200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc713fd2a4511bb2c5d7d33f3ac3e581c012b484f138af6e26c328641a201f20a. 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/GBAG51200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856f2b003b8b5e933ae02430750f56607ee7acfafc141a3ee25f4c9bfa3d78b8. 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/GBKQU1162354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f42402e42d2a5845d5b038f6551b672b8e48c286e1a749c5378b5da4cc4792. 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/GBKQU1162355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49fdd5cb8aaabb96c3cbbb865d09a4583f2ef6a7eff11a355a83c940e1dded8. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/GBKQU1162356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d9d71f3c72c052fe023b5d986dd6b1f918fd3df6a77b1401aee8ef437442e9. 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/USGGP1002303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c0f51b126a0da0a215b5a753dce6770aad2684e025835bd80550994f505569. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/USGGP1002302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae50d22308bfb3b2432da70d4dac504a31e9e819b98bee990f580ca3435e3ca. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USGGP1002304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4105b86eed917f4b549585a7a3f104a30b014039fc449a96064a0836ed5fe0e. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USGGP1002311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c2b3c254c377f2d36a5141847571eba9e8e2c3b7403f3767aa97b3a8f9135c. 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/USAD20611338.