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 0xe41ca60404ce7f3215ef9cbaeebd8c17e51cad65f0dc8f6e14d00bd27f28bd3d. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db440a9f-e79a-40e6-aad3-7adb28dc8d8d.json and https://artists.proofprofile.net/proofs/artist/db440a9f-e79a-40e6-aad3-7adb28dc8d8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mixmag Germany presents 10 Years Upon You
Babylon Side (feat. Deep Aztec & Black Soda)
Babylon Side (feat. Deep Aztec & Black Soda) - Oliver Huntemann Remix
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 0x3ae3664270bede1c3097a9a3c8d4ec709cdfdd88537429db5eb2943d38a2c2e6. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:09:35Z), 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/DEPX41700250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326cef8d50726815ccc9068f359e7378c581003038fe3f5f44b78ef472d6ccc9. 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/DEHK32200809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68dd58daa3470fcae085ad91152b0ad073bf7a8a9d93dc18b572f5cd88023b24. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEY472375695.
Green Celery (Marco Resmann Interpretation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a0efeeaa19365f0d28bd7fbe38001a5f2bb861c213c7d1e0692e21f416dd97. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEHK32500840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03113cba92cad5b240fb47fad03f2295e66bc561fc2890c56654f52b04734d15. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEHK32500841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bf65d4d9d20ccbca53fb0861ab3ef1f48642a4e0237851031da802c71358b4. 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/DEPX41200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a00aed7ef48e39b1bdd2eef84a3894bcb50bb0d6a5bcd16b49e0ebca26c1482. 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/DEPX42200585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488162ad0dbbca1d444220621e8d180e89eabe7dd486581ed6e6d949e49d039e. 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/DEL021802041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3de71acb32aca66f7fed9e006fa666c2532de42b6d7cb6549c70ef5416e09b. 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/DEM091600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244a2fb9d7db88f8dfa8d01ffe225e0b6e8367953178c3ede271e7162bbc3eaa. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEPX41700230.