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 0xef0d1c436257811480dfb1d0bb213e34594dcbc09be80e8f07fb5e5d85196b54. 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/ece6f92c-f8a7-4ed4-9770-51d6a4b46274.json and https://artists.proofprofile.net/proofs/artist/ece6f92c-f8a7-4ed4-9770-51d6a4b46274.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 0x3f04582f34f9f145fec3517eebe0ed072b28ab34fcd6dc09b5b7f5f4f79e77e2. 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/USCGJ2431556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e8c592b26c8697bf810c3ba7bd43afaef736ab51f20d49b39e150a8b574b27. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/USCGJ2466269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd467008c1cd869dc8587a429d24a3d238cc656399bb47dea4bedc493ae969ee1. 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/USCGJ2472028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385ee8056a82ee2c00d65d3b18940426cef652386ae826ba04247f7d14d23e46. 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/USHM92015063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498aebc583f0bce76c4861c3910bdcd3af624dade39f64f912150299e0bc073d. 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/USCGJ2468780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fa3aca68fa360cefe6cede55cef6822ee62ea2412095349e1be422a301c46b. 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/USHM21922793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f418281123013101f655c554f9be06760e3f12eabf111835de8d5b7df83e5f0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US3DF2499801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd50a99b7eca61bae5b45a16a25ac2423d5680683a603f374a42d1aca9b9e23. 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/QMANG2233900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf218b919a40fb73477f21090aad5b5c38a0f1c290fd996f457008b2f36f1efb. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMANG2217567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b22ee323e624519b28e9fa17c44f3230c4dfc399e838a7be8feb1a1499412a. 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/QMANG2204853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be553111dd79282915ad69c3e3ccc8c185a1dd880fb778c8411d4d58958a991. 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/IL6652307259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f69875b67f8fe3072f06b45d8349810529e03b7730bbea3caebb65950b2fde. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/IL6652307261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ee14a5038920db03ce21c009c45f63d6ce1a018edabadb444698ab32a95ebb. 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/IL6652307262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8cba382126cba44f7394030ffeca39de11fa5ac93e156147190babc9420376. 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/USL4R2445351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc384c31fa305f078c7e119a9a613d04051807dae0b3d7ca3b347a4c83fe4b5b7. 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/USL4R2445352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb2d5ffb446462d5ca9c5c0cd433c97d361a68f6e01d421e8e54a8a33a1289a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM3DF2267983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fdbe0becca18f99a7a8b39c4eb3885c1a4b9e44df754d57acd379094cc93ae. 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/QM3DF2214806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd67b3a264e86839a2bc08f7441400f2313ed8491aeeb444f0b575ccb926577. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T23:17:55Z), 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/USANG2298594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d29496ee37592827b2ec31501ed2ee315d9d4737bf456abd34bd7225f93c5ba. 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/USANG2244252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a545e2a638d1b7558e9fbf51f6e5bb96b861066155cec4f6997d6a00eee1f1. 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/USANG2232666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e01800f32bc22a927a1f363c24b270e2d933ac8f3f1de18afbd7c371aacc89a. 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/NL4YD2200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc197773f06ddf9c709672fa182be011561a5ef34d84f3ced94f686d54eb212a2. 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/NL4YD2100270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca91674cf545a689ac394c6cea0e84c6d530fb49c3dbee7d2c8dd931f5fd735. 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/NL4YD2100239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002250c747ddd41828aaf07cee8187db235fadcdce269388eaacc91d4fcf0aa5. 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/NL4YD2100238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe72a6a545d259e80841ce7b3edc12d8aad460b1feb971168374c69e2433c0d. 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/NL4YD2200188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbeca35500c12d26b4efd1d517bffcf2409af804427f28b6c15ed27044a3bf91. 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/NL4YD2200125.
Mellow Dreams 4 - Chill Beats Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e01800f32bc22a927a1f363c24b270e2d933ac8f3f1de18afbd7c371aacc89a. 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/NL4YD2200079.