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 0xe4b64111d65fb42615f6e42b5d1e21559da73223f59c843647ac4f75a0174d4e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66dcc895-057c-42ec-8d0e-79bb96fabb00.json and https://artists.proofprofile.net/proofs/artist/66dcc895-057c-42ec-8d0e-79bb96fabb00.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 0x6b654cd0c32719b8e298f35f91c3219d11ea81a040a93dcde84d0b61647f672b. 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/DETO32400412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacffd89735795596c2db800c2b1e0fa9bf907b1e09ded77f73c31ff652dca91f. 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/DETO32400306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68c8adfe070e207acaf99646fea67246e9028f8b997592edde7ff108711eb7a. 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/DETO32300650.
People Help the People (aus "The Voice of Germany 2023") [Live]
People Help the People (aus "The Voice of Germany 2023") - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2d4ffd30a8612e9f99cbbe3fc0063fd99db028673aa71e95dd4f52a3335646. 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/DETO32300636.
Don't Watch Me Cry (aus "The Voice of Germany 2023") [Live]
Don't Watch Me Cry (aus "The Voice of Germany 2023") - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68c8aeef5fefe3b59d7811e082d2063c7020723ca601727ace66457b6093381. 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/DETO32300625.
Everytime (aus "The Voice of Germany 2023") [Live]
Everytime (aus "The Voice of Germany 2023") - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f98617a9d88ff2da7af4c4c8c290b7bb7630eac9f10cbda07838c56e88e286. 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/DETO32300565.
Rainbow Connection (aus "The Voice of Germany 2023") [Live]
Rainbow Connection (aus "The Voice of Germany 2023") - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba998abe2805ed75637fe90223f219ade1bc5692679ca8600efb05b8a3300aa. 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/DETO32300475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18e376193ec748244b9130c62135ba9bdd01fb6018028e47f960566bb909145. 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/DEAR42343563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8124521322baf12c59d8e54ee4bd32a487fc499625d6ae213ecf56ddcd8464a. 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/DEZC62347641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b3ec94703ec898b3d1b98c6afdecd4a20b25f263b12231451f900e5d596203. 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/DELJ82036472.