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 0xdd58e9233ede945bce9061f00bcc0fa4dc22b64ad8a72fc5da6e93255379995d. 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/256db73e-42ee-4ef0-b239-1c258fec6cf2.json and https://artists.proofprofile.net/proofs/artist/256db73e-42ee-4ef0-b239-1c258fec6cf2.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 0xabb323365ae2c517e4d82743380cf111974205de3b5676b952d2805e16a7e7b2. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEAF42000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7744e28325da0068a2578763199ffd11df3ee92ef7dca7e438d7225d49c906d9. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DEAF42000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ecf6e306ac921e23cedbb70d6fd7b5343931aaa5a4be0818648d7ceb89aee1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEAF42000112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fed6f8821c810de7220b35ea7f7f1f8add5a7d265e68b2050e86ba6aad601c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DEAF42000113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ad444351c91d7e466b55971b8693fb7ccd04b6e0a82d44cb5edea8f461ca1b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM6MZ2119659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157d732ceec10e6009dc5d0e9fbd0b4e12a7ff3313b29dbbd3bd0024e51fda4d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:00:36Z), 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/QMFMF2345715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180e00bc51c2b9fc67e19dfe8f9df2e3ea8e70e259c6d9bf8ee2d8a6b65280e8. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:15:46Z), 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/QMBZ92483882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40563c2e65413f4e082fd907d9c0fa243bf60ee42323d9c761d3046b1464755. 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/QMDA72495513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9892fec132802b7cafc9af774eed47ec69e6e0fddb3ddc266d18a5bd8268006c. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QM6N22552066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaade69fa3feaac15cb2eaeac8125195a6aba1cd35e04aa33c81b8a470965561. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QM6N22568095.
So schwer, sich leicht zu fühlen (Wie ich von meinen Essstörungen frei wurde)