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 0x85ff65300538d3d8591876fce9366f35495d14725c316845b52af4d22a27ec67. 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/768b19dd-600c-451b-8b7b-39088506840c.json and https://artists.proofprofile.net/proofs/artist/768b19dd-600c-451b-8b7b-39088506840c.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 0x80eb7310ae6e37b29b501e83b40f8a9db8fc4934e80311c255a77589e8478529. 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/CH7812530958.
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 0x4b96754dbae1176bfe897c6c7486c865d53f4a57aa6c97b272dc47c571d4c462. 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/CH7812410742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b96754dbae1176bfe897c6c7486c865d53f4a57aa6c97b272dc47c571d4c462. 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/CH7812410742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30dda9a8659211df204568aa49f9d53a5e06b0dbc0a1242414fc559742719b89. 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/CH7812420648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ee4f5f20420cf66bc05a5557660624c2231d9cfbbee6b4d15135f4505221ac. 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/CH7812424954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d439ba5146d96b7f5a682374bbe2ff1ed4af3e085f78144291a17509f851d2. 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/CH7812528301.
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 0x07bfd6f79c1b4d87121b30b9a05decebfddcdc799b20140d818336f2ac504652. 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/CH7812424685.
Team Dorian VS Team San Andreas (Part 2 von 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77c6deb2bb692271917e5f729f40e2a5447c338c42220bb700475cd9c3dc354. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CH7812423480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034ad6d59174b53d978bd4add5535c459994ea34aef4dfef615ca4e25ba21d5a. 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/CH7812531502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034ad6d59174b53d978bd4add5535c459994ea34aef4dfef615ca4e25ba21d5a. 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/CH7812531502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa61e877d3145c59c5a88bc6a193c9b21a75ffd32c70aa3b5b8434aa3973e34. 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/CH7812534242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd76df1a212ca73570c68afe2bac61bb03474e06253b5e662113bb9b9360e3d8. 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/CH7812535181.