thumb|right|Adrian, photographed in Twizel, New Zealand, May 2024 Rudy Adrian (né Hueting; born 1965) is a New Zealand ambient musician from Dunedin. Music Rudy worked as a freelance musician and
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 0xb8dffaf6a364b5f3e72b2f6d2a5d8378fa5bf9aa04c77ce421aee222d1e7ad11. 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/746fa47f-d04b-4693-a6f4-e790b12463ed.json and https://artists.proofprofile.net/proofs/artist/746fa47f-d04b-4693-a6f4-e790b12463ed.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 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 0xa417f555a35c339605468c81e8bf33585873612e5099e50b70c85853a4030c5a. 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/USSP51926020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9333fdf84abfc0568423844baa3735391a93dfe6584b0f583dc5141cc37af2b2. 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/USSP51926027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c5324359139f4138fc6fac0e3912c5d520dac808fed02fac343ae5d8608190. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:42:28Z), 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/USSP51926029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fb12628bfe567bfdb2d8ba7fa5661b6afa0ddbd93e2bd09158ed70e7acfec7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:30:45Z), 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/USSP51626010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb600ac76150af2ffa00c566bdfde3c9273a09d09e2520a798cdd20503510e67e. 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/USSP51626011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3f6b5af7f6e06d849e36b4316bc2a8199b91b05391b7e99a75d3ec3ee12dab. 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/USSP51626012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3c62e3b2bf2ec83ce951c2e5bed7bd5efaaaf8fab03b293c1daf6a9ca98b57. 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/USSP51626014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e926c99690e8ef7468506d3e1649e3ef6e731ca3222dfffd9d041ef023728cb. 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/USSP51626015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8186f4f167d532e2089be61057700fd8c44c33204de040a018a3865498aef6ec. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSP51626016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69c0516d8402d5b1061c6b78a3ca25e999542ad360c9f33c0272664fb59931e. 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/USSP51626019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fd26271ab600624688d5b71323d1cfe89aa551dd71894a9ff5297d820a2983. 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/USSP51426001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb30a2c388f8722bec7b15246f0c5296e1c58433cb24803f9c88866981a9b790. 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/USSP51426002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2cd6c9b61768afeaaae4d5ff1807f80b81c2e93699e34f1d2f18b6e7a57cde2. 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/USSP51426003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba79864513280d2682c3a2aab320a76c9e5b92ea6c9a13b1b5dd587bc1d6f90. 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/USSP51426004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8cf36437a9cc43703778f44a3096616f1d146aadbdf9dbdad6ce75f5204002. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:01:17Z), 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/USSP51426005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af618105a2c3bc498b55f3cc1c7439f83e522b51b03dbcd5dec2de376a43507. 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/USSP51426006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4170c35ec290c4f240c1f6067682257aac76148a335855e6008ac96652e0f38d. 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/USSP51426008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a4d7f8c94699248dd769db6e6d6d68c51d56c0a61db8ad6d692ddf789fbc73. 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/US4HD0800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13eb07447bf7bc4b35fe96f1a108ae73b24e4dd54cc4ef29fe3c912e4931173. 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/US4HD0800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e83940b7e5b76a4f2dff349e36536e95bea9d79b3cd3b70cc6d80c9dcefa626. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US4HD0800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b5a1aab7aafd3ca02d93fc3c47cc865f0caa894ce74e8e367f57e7cfb4f761. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US4HD0800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92966cc0d62f189a4b001cfa41ae70e537f69debb792c1021e7d851f85996f16. 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/US4HD0800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63310fc5e97b92e5327fbc042ef6861db944e57309cd9f9f739b6bd3814bf13. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US4HD0600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b44a07a6c691833fb551f7d8e43e03fec598601b678107772f33498e3ef2038. 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/US4HD0600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f4a0fba9a89eefcb8e2c03a0173a7be3e346daa163c361d2944278b4396991. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US4HD0600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83914234524b8f14a981cb83d94d930ef0c5643a63a52fc2eac03404f6d49218. 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/US4HD0600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0b5c8039d14e2325ca6b56574a125e906dd9eb9b8a1b5d91d89c9422f71c89. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US4HD0600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4156a1d54ec547c459f3bd90b0a764959ded9713c496540fe2a5f2c3349396ce. 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/US4HD0600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3349945d034b89504d6f1f23b8d2b247457c4afaadf6c6f38e99ba1bfb2448c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US4HD0600007.
Three Views of a Japanese Garden, part 2 - live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf39157324327dc4fda2b9e4b5ab9179dd79c733ea1abfccf4debb71c402a964. 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/US4HD0600008.
Three Views of a Japanese Garden, part 3 - live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39f9f0bace2cd525517a28b4c815f48d718396056407c93a8c817fe89605838. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/US4HD0600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9439bb1c4e2ce9b30afd04477fd3448dc302d9ff2a6a5bfa6629f161b002ec3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HKC830004701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7302e465f35bf75c96525aa5344b87160f53ed711c2dbc34ed63d7979a9faf87. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HKC830004702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdaf86b8262f57b1e8dd3a9c1801a34b7da090cf340a47fe51a6a13fd914ff6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HKC830004703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c3cd78deecddc0a935bdd39cae999cba1f58885444d220086b16a9e7222f68. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HKC830004704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f1c8deecb1706de5a68725d4ad7ce3dc6b5de0b6fe92a67241780e3252165c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HKC830004705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d217705f690c7c5a6e81c358ca8ff94666071f04db4d7e23d037d8eea1b19c. 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/HKC830004706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5501649abd5e5594d23e26a30559d8a2931841781784d6d8a97f7644b225d13. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HKC830004707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283b21d3e135ee51ec4f0aa5c00fa3f30ac423d1b36f8d1938be1ba859b3e792. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HKC830004708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4387dc677b7fe543082dce406906f118bf3a10495b94bfa142b7fae531ad653b. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/HKC830004709.