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 0xbe2d77e2bcc5ca320a1dee3e6ca9c7c3f5da6b7a6c6cc3cabc286644d4f53a8f. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e99e5f30-8e85-41fb-8b3d-9767ac430793.json and https://artists.proofprofile.net/proofs/artist/e99e5f30-8e85-41fb-8b3d-9767ac430793.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Love, Alcohol and Dirty Jazz - Original Mix
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 0xf7f8fed77631b5af52ac52f82cd9f61bc13fe057f7493a80bf08b534ca8e9b7b. 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/UKR6V2273330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1e55ff2341b54abc825fa3e49325f89b850f04adb28b181d81be7895fb2d3b. 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/GBLV62216034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f3a0fd4617ceb1d5f5325ed60c273cbcd7f59bbdeb2c34b7ba49f01bff91c5. 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/US83Z2306348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5fa308a7e981c2cb12bff477ade2cc394baf8a0227a74ac9545d8e6e84df85. 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/GBKQU2296235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07de513f555c36971ae896d3c2723484251e6dd1e67c61a1d84e71f8b5537b7d. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/GBKQU2296236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41863131c6aba5e6684ec08e36b9b8f4e2a6f225cef80f6760909e5fb5693e0. 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/DEPQ62201282.
A Dialog That Needs Your Attention (Max Caesar Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6883442ccf94d289cc0c75cda9994f958d16a3622c2bfae8a7d2b4f1ab9df68. 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/UKR6V2271426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e05da9168670052a33c3140cd79899529b4b303d0570d9817a0a1297cc5b35. 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/US83Z2123423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb180ee384d4516bd304e6b7932e1ef715935fac78ec687c6b6519b528ea91930. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/GBLV62216030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eebbfb8a1794b194bdef99b32157424c8bce11a4be2b742be7544817f35b84a. 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/GBLV62216031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12ed077162b6b36f1865cb32a60c6e6bd02d08758bb3bee61a9777cbc84cae9. 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/GBLV62216032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1e55ff2341b54abc825fa3e49325f89b850f04adb28b181d81be7895fb2d3b. 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/GBLV62216034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d5c3fbbf6b6eb75c43a221a87b1ba34af8f351facc496bde3b6f0511a78d81. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBLV62216035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88740f5de31347859c35cd8f19321e7fa4e210b7e45df2bf85c29be7855606c1. 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/GBLV62216036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5c4f07cbc181034832c15f6eea09cbab52dede2402711f99f1b1156694f054. 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/GBLV62216038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949c2590202164b13971967662abffd19a81cb66a8e5eb9bf58ed5f89bf6e817. 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/NLF711900036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7fcb63d85b4fb4023bba97a585b5f322346fcd1e01c31f8ccc3f202f3d45ff. 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/NLF712400411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78039d474770abb18b3a8c0e4a497681692c2e5cbb1dabef201aed39ebb4b5d. 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/NLF712400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5758f4aa6b447b2e93dd57a087a12e6761a3d2d2ef6888aae4f3bd7c505a3da. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/NLF712400569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ab80dfea957c3c98cef6caaab804493ea1c69bb80a94107bed0db19a18ad90. 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/NLF712304015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a0f94cfc404a6058e258cb2e84343cace80773c68c92810f25b17c367b8629. 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/NLF712404519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bba4af74e524d7d80255fa3f041da999c5dbcdb8f118bf7a40cdc955511c71. 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/ZAP541700086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151a148e84d37a2b865847ec032317ff0561a9490b16ad30269ee0aa6293c33a. 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/GBPS62300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7337a4882f2a3d48a0caf2bc83fa4323f37c137ff15929cefaedfce2514e356b. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZGWX2209925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa98b27c8717c547378a5c2e823a4d610096a61d76651c7aea2ece83466edf1. 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/QZGWX2209928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358cf7432f2a4dab63d4db1329e66681234bd409778140afae82dfa0eb3957e2. 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/QZGWX2209934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a9dc61eeaf5afe103daa7a5d737ba97d6c01828f227154899b4726ea870e5c. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/QZGWX2209935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc6b7c378739f5602f7044df3fdb373ec3b70e6aec57eca6a49b13c6c92fd9f. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBLFP2001355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584a09594e142c148949f0d216cf9afffafa54da060a12d6b65955035821db59. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBLV62022326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886f25e34f0cb1bb205d5e8395413b3d2da4029cc066394d36a471317321ee4e. 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/GBKQU2260506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1adeb7c07d4d7b571119b24f6e489cc9c550f08dd52d09b8ca09bfe6d4f5b8. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBKQU2227661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2aa211d0fcf32c6d9544ac975e41a16cb597a8badab3075f4208ae79770562. 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/GBKQU2134033.