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 0xca25f92c9346d69796086e0c906f4e75fc1a51ce36f7e0a7aea97cd74b6a0056. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06185e75-4dd9-4348-8ca9-cd91d7aa2aa0.json and https://artists.proofprofile.net/proofs/artist/06185e75-4dd9-4348-8ca9-cd91d7aa2aa0.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 0xf4aa8377814f179bd5347ea069a34e2cf14ef08c1fad4612fba48da1b7697f9b. 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/ATK220000428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5afc3542962c83eba3161ceba7e9728cf8299c91fa2a8b6e1b31a449a3fad9. 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/ATK220100629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703e6d1336672896f144a0091dde52a4e7e8dac0464576b04c65e1653beb9d50. 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/ATK220100819.
50 Jahre - Ernst Mosch - Seine Musik Lebt Weiter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330964f1ad6c5a0c9ae14719ed51fe98cdf4d9113391a31af55aca2965881c53. 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/ATK220000423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a3a9c6a0b3464d3a23c7d611b5c4413e99f01fa714ba464f188b3bf9b405c0. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/ATK220000426.
Erinnerungen An Ernst Mosch Zu Seinem 80. Geburtstag
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580c3bfe9b703a4d68b1d9fa5dcd9102bc63d69ca8895839289daea9d2737b0a. 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/ATK220100816.
Danke Ernst Mosch - Deine größten Erfolge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330964f1ad6c5a0c9ae14719ed51fe98cdf4d9113391a31af55aca2965881c53. 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/ATK220000423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a3a9c6a0b3464d3a23c7d611b5c4413e99f01fa714ba464f188b3bf9b405c0. 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/ATK220000426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4aa8377814f179bd5347ea069a34e2cf14ef08c1fad4612fba48da1b7697f9b. 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/ATK220000428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb970d3d6a00403d8d7b467bb3e5acf13e58b54b5af45dc836fdd1a4f69433339. 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/ATK220000431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83124bb66ca4275923f6b9f97325a88b59a896faa77573dbbecb5eb0f435e66. 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/ATK220000434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5afc3542962c83eba3161ceba7e9728cf8299c91fa2a8b6e1b31a449a3fad9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ATK220100629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580c3bfe9b703a4d68b1d9fa5dcd9102bc63d69ca8895839289daea9d2737b0a. 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/ATK220100816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703e6d1336672896f144a0091dde52a4e7e8dac0464576b04c65e1653beb9d50. 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/ATK220100819.
Ernst Mosch und seine Original Egerländer Musikanten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83519071ce7cc5a30ddc57aa98b25862450b3fd108478f2c85b9a52e400132d. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/ATK229800010.
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