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 0xf99fd7bf18e412ff31db612ebb4e4976da6112beaaf235be068bdb660f1af048. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e2bef6d-cafb-4985-8ae3-e7cd651e4ccc.json and https://artists.proofprofile.net/proofs/artist/7e2bef6d-cafb-4985-8ae3-e7cd651e4ccc.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 0x4e38a486b2631ccb49ae4c8ee5bfc4e1497a5e41940d9c842c86294d3ac89cdf. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:02:36Z), 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/CH6542379150.
Vielleicht bin ich die, die Du gesucht hast
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc846a07537e78096024deb87014bb97ee08dce7f60451e84ae0104a77b7d87a1. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEU340200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e89459ce79107b9bda2a2ec2be6fac5e7461a164ad6daada7058ae0c85f2532. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEU340200087.
Ich kann doch nichts dafür, dass ich dich liebe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d74c202b0c8e77d8944dc13f185e3c38701b2952f308d1fabfeac646437bce. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEU340200093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59adc4093bbb05bc23a027562f5d04e796027058d38028a90e39d8a261cb89a4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEU340200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cac5e668b37d44adde2dc55d72ae0dd2c199cf02ddfa56f7014ed9a35dec4b3. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T11:01:43Z), 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/DEU340200116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1aec19f403eac64c43ddb0512d9f6dce626bded9d7dd879c47c4e459f164fa. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEU340200160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2773a7d16ba5ef5fadef6d56f00d88380e3700a9f286e6a6f48e9e9d727c9da3. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEU340200161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a8fab982dba17c45412481fb21d1faa93ac4d9bf1ec95443f0703a42f114ae. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEU340200162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6beee7dc5c893d18e8f2e5291ee086708663d49bf84d5a775806a3c93ff55738. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/DEU340200163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d15b92d45a76dda7d52d86297a53659fa0b07fd2bcf524765f9ec4d7ba03ea5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEU340200164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5054efbfe9de499c40663d642be2e8f65aca5c275cfe5e51afc08c1e336703. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DEU340200165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719492d2d1be1e928756568de3c8dbecda8de10bcaab0dc6f3eeef2251dc4c67. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:59:57Z), 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/DEU340200166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0930971fb0ba31a956956f5fd78684ddeec5fd314fb325274fb3cf64a7502e4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEU340200167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8162687281d01060a2ae1aab94965933341f845a8b89814fa2e88aefd211139c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEU340200168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e183ccf6a3478396c0df42fef94a66672505333a365cbd40ceb3f7a680924f8. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DEU340200169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61db5e13c6cd3296173052b10fe881a0a77bc40f743ff42f914c425d99c5a8b. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DEU340200170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352e209247efe66b3a690e70a1c44c3393e01e3973c5924b3a21086ba5a96819. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/DEU340200171.