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 0x27dbe9f6140f670adf1d07e3269a22bcbe89e6b8f3ae7032c8a19180d42710d5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7828db4e-1d65-418f-9751-2f25eadb7437.json and https://artists.proofprofile.net/proofs/artist/7828db4e-1d65-418f-9751-2f25eadb7437.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 0x7d4ef8ffecd3c85b72d41c869dd382d1ded6c8cd3c28d67e1ccde3563edb83af. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/UKTUY2032577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8266b05158edd08e83d511bfd1ae7112d051e4654499699b5cad785b6a378575. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T06:30:49Z), 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/US3DF2230760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316b40475aff86e0cda5516f11f144bfbe7b090aca81d9463f532cf2f5981c7e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEQ022282195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985d120452d2dccad98026135e1a9fe537ab917e1ff1483e15aca666eea65a88. 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/QZK6K2250034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa25892a3a1d743d8361de9ed2191eb5265a3c043f003cdafae09f2bce2ddaf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/UKZGC2201798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7949a37eb2255f30bf74a18f715b879eacc12b8252cf6f6fc96980053e462e5. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USANG2290027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1361913ce15f709e2a7ef21f6d690be3ced46096a19fddd09a2db61dc040db2b. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:52:07Z), 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/USANG2290194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3f092ae192ead356b50c84516b52adb81acba5c2557fe9adcbe11b22dd3d39. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USANG2298478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8263cc6306796ad106b5d1880db4f2709de4580af704f95e7392b6a5262e6669. 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/NL4YD2400144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852fa24c11702ef54f61e1f6698296f916e1bfc6670b2048f8e009218409ee9c. 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/US3DF2412709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c929d12bbdc77bddd6aca52c468ac94a1049eda6dd1e43e063160c2173720e. 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/USANG2489676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd445bc52f5ed817db4a36e1df496d683c8a024bf3d4bb6ed45711e2d27bc1d. 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/US3DF2536824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ffd5b74c005c9d917661169ebe08ca5aad805d7bad8ab5c1e4478826b33666. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USANG2518657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf3ca55c6ebeb7f05704590410a9e306428dcc5b4a38c6b160687557b1d6ea0. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/USANG2531158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed29e05ec2f6de79a08d7adebcb368a5c2e9df96fb20b113df77ee6e87dbec3b. 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/QZN882231958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351c082b80d65b1e7de800cbb27c101a70fd0485210ce07693f54bc3c10731b7. 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/USANG2222348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a26d89113471f7ab3866505703c755e7356975c29469a4c6a1d7d8953f1dca7. 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/UKZGC2304215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13855d7d1960fe2083677254581d414d1e0f3d196a59fcd2e01c22d62af804e. 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/QM3DF2274202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a1d4e8715335d02c4e9a8834f93258ddebddefc7f2001a5b676133a9e49def. 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/GBLV62138308.
Mellow Dreams 4 - Chill Beats Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2510a3ed46acd6d3c6a5cea6e931f070b450e30a95956fd94914ba00cb0db7f7. 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/NL4YD2300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c902beec8ee0708b7ea61322564b121a0bbaaea823d5b86a92965b9dcae321. 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/USANG2421183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd12e59e4277f2db262b74104b3764b85de7d8d1f31d644585a886236d7d78cc. 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/USANG2473298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb181cc46ea911a785c94ae559ebbb372d66e81f55524436f0ad3ac8eacb5f6d9. 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/USANG2412562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5ea9c47b7903051f84fa72573e1c5248496abf42f21246bac0fb1c2c94ab2f. 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/QM3DF2409522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec34e0e141ed52343ce88c84354a9e60b21a1b1c15aa399b0a801d72001516d0. 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/NL4YD2200181.