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 0xd519a8882ec7f965ac65b9718630a1215822fd6a3393f0940d669f9f0a94e1dc. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8da923d-b92a-4b49-adc3-b0450b342929.json and https://artists.proofprofile.net/proofs/artist/d8da923d-b92a-4b49-adc3-b0450b342929.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 0x7a5d04bc794544a40ca46424b264fcb305bc124bdc9bf322281f9b1764e73b9a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEVY91900090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbf1df33b90004e0593c3acface0b00f3c010849a9a8ac9a50c00b8ad7a2473. 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/GB5KU2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b6f0a20c97ab6f51bf9233634fad6948aafeebdd8637a75dbb93a538bbcf71. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/GB5KU2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1011111cd3d357a4455f970c2c6d9cbed1d6f82aeb45b55995cae572cdb817b5. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GB5KU2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6288a1a108e963c40c31b98a54fe39cc043d509e4b4ce71e742db0974414bc. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GB5KU2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018318d8e076b6a5e814bc0722ae68ed963ba0c8f287308a60348214e5ac70c2. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:34:06Z), 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/GB5KU2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bbf464651c9156f0c2423535cdb7b0ac540b209181b659ec7b78b1a0490aabb. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GB5KU2500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf46a7ac7956b50fae27bc37983df5c49102a50bdf4304e97ab52fe406b8e8ad. 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/GB5KU2500010.
Vanishing Point / Fractal Vision - Mix Cut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776fb6c4ba9316bcf2ee4a74a88d4f0f0213cdc33e6a8b5c839d802d91bbf163. 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/AUXN21800173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f149a46afbb3928a09622b6174d9771e340255ff64d27c227dd29cf0a2bd7db. 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/DEG931801452.