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 0x9de7ab573f39bf41ef6b705e73c3c19bfd29c9b13fcc3644b0cf36007bb5ec91. 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/5e4f7996-59c9-47ad-8164-30f59cc9aab2.json and https://artists.proofprofile.net/proofs/artist/5e4f7996-59c9-47ad-8164-30f59cc9aab2.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 0xc4796d7c9a6e0517a32fb52fcabc17477f98b137712e4a99c568799af4206b0f. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/DEE862301930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad78e805d8c48e4754eadb6f56a5186717e669b43a4402f5bd728f805359806. 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/CH7812530962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28c6af83f6d7bd36102d3f8327fc26bfb7dd7af4ea60ebd0d540ba75ba7e44b. 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/CH7812423954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebeeb2e7c2ebf140891a6e804a55b0b1a20b04e0c5ebed7a2ce043442e8ee46. 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/CH7812424332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66fb636675e0647d6b9c8e59a614e3e773f35245ca9883323ab787d069be473. 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/CH6542246093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769823089c98250b41d382d88ee5d98735d9abfb8fb95d517b9b8eca5a8547e3. 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/CH7812425196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c9289bdee21c338558baa99b3814e6c888355cf971bf7ff0715a86992546dd. 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/CH7812233358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769823089c98250b41d382d88ee5d98735d9abfb8fb95d517b9b8eca5a8547e3. 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/CH7812425196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c6b8e95fec85905c40bfb9883e5a3c621869573ee9329415444f887522539b. 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/CH7812528300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825790d77e15dd87f69cf58c7b3340712c88ed52bd324ba773f877a42a22f11d. 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/CH7812421312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0fd0189928269e9f1da60943c31b094ac5184f3f2e8f65819095d2c89b96f5. 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/CH7812233382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ea620e4365f44d919b1c085b0cc90ad6881d4d9b40730afbe45ffba50fbed7. 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/CH7812233395.
Team Dorian VS Team San Andreas (Part 1 von 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f2dadec3333a9a322fde09787e23e979d5e265a67d88224d6e1b989eba12ab. 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/CH7812423479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa2542e103677940ad59ba9ff241324704240148b151fc6fad7032d10e317ad. 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/DEKF22201048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac1ca658b624a300e39f86792fffeb4ec6ec814bf539da2af15cc549d1d3355. 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/CH7812530482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef39cdeaf6fb3b5bb67f1ae801b47dc51823cfd3f80de72dcbdd1f32be4a89a. 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/CH7812531504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac1ca658b624a300e39f86792fffeb4ec6ec814bf539da2af15cc549d1d3355. 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/CH7812530482.