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 0xe853f9c7157418ed463ad9364040026b1b161e99c7c983ddfe20b9a1e13271df. 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/efc37b51-4604-4f8e-8ed1-b4c7efac5c3e.json and https://artists.proofprofile.net/proofs/artist/efc37b51-4604-4f8e-8ed1-b4c7efac5c3e.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 0xcc967a91b3fef2dbf47fdbe81dcd598982d9bfd78211530e5676d02529abcbbc. 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/GB8931700002.
Thinking of You (Soul Syndicate Remixes)
Lets Be (Family Reunion Sugar Free Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fed838146cd39e0a4e4bd0c8f83793c6badc6efb0f2a15cedfe4aa15954c5ae. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/UKSVF1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f71b2be83d2a07312c54e5d3e31f58a37748d056fdad5746bd1beda6f23403. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/UKSVF1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536b22b808281478344213decc206526e90afef60664fbd414f4d897607cb123. 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/UKSVF1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb552b26384a74aae78459f3f8d2a9d28000c2dc85141542ff8f71a6dbbd569. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/UKSVF1900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f776d043f7a8d0028fa321a24df3f6d4d4141c1d67dd59d27611785d42eae27. 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/UKSVF1900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c044881fc25da3671a3268d2ab79fd9789cd5cd387575dbd4bd623c84ab96c. 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/UKSVF1900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce263aa6743a13c6cd78de6b1f73c7ed2dfcbe6916b18cdca84490a64cee7d18. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/UKSVF1900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44164f26bc46c30dd98d9be2270f042e2b3ce2a94b60e394b262a1780911773c. 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/UKSVF1900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce263aa6743a13c6cd78de6b1f73c7ed2dfcbe6916b18cdca84490a64cee7d18. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/UKSVF1900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e09f3bbabb5711f0698c32a79a448ca0212bcd8495c38845ee14d9bddcf206c. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/DEYX82218206.