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 0xfcd63ebee35c40929ffa65cac9cadd15854d8a33f7752d536ce7763e987e52f5. 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/fc290699-60d2-48bf-8cd5-5c3ede6b1126.json and https://artists.proofprofile.net/proofs/artist/fc290699-60d2-48bf-8cd5-5c3ede6b1126.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 0xec11767e28fea7ad361eeb8aa22db83711b8ce803e6392137cdb164300af39a3. 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/FRX872307626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357522e8ec1fa2d60975455310d3f1768b0b02ed346c6e918e8ac804dadf22eb. 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/DEXJ22000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357522e8ec1fa2d60975455310d3f1768b0b02ed346c6e918e8ac804dadf22eb. 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/DEXJ22000062.
GOTTES WILLE (feat. Juh-Dee & Young Mesh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712d4b76ecc7b9ec86d892f8d1dccad7811e00cd04f81c0f818601a447dda7f2. 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/DEXJ22300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3450da70bc4aca5edb1b21cdf30d9e5f3ab5f22e059533a0b00cc26e15d4a4. 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/DEXJ22000074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357522e8ec1fa2d60975455310d3f1768b0b02ed346c6e918e8ac804dadf22eb. 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/DEXJ22000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3450da70bc4aca5edb1b21cdf30d9e5f3ab5f22e059533a0b00cc26e15d4a4. Chain 2 (Bitcoin): anchored in block 956995 (2026-07-07T04:27:57Z), 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/DEXJ22000074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357522e8ec1fa2d60975455310d3f1768b0b02ed346c6e918e8ac804dadf22eb. 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/DEXJ22000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3450da70bc4aca5edb1b21cdf30d9e5f3ab5f22e059533a0b00cc26e15d4a4. 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/DEXJ22000074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca40cef5259b78516ff6c18c73f78a2134699beb7dad5d88ebdcf2c9cc0c9993. 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/DECE72400358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdb3c6d471f5015ff502f34fb914bddc48cec2fe4d9be733b200c4145f9c46a. 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/DECE72400362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c1159331d0c663fa6567d35f6b098ce41a90afe7882dfa4cccbf6f64da16c7. 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/DECE72301701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca6ca2435fa3cb2d5724f9be6481088db221ce460a8581009599906e58eb73c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEA622304116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca6ca2435fa3cb2d5724f9be6481088db221ce460a8581009599906e58eb73c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEA622304116.