1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x7c928976214215153f0f7be388b294f751a38c28a355ac2c6ee68d53b51d093e. 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/be763345-1deb-4adb-9d5b-cd0f747662b0.json and https://artists.proofprofile.net/proofs/artist/be763345-1deb-4adb-9d5b-cd0f747662b0.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 → block OTSBitcoinBlock must exist at that height 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 0xf3ab8dbd9479eee43848f2eddd11d22fa5bbbce868b3059a6b575946b3c7c1c2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBUM72406694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87bd7bd9ed43b31b49b917aeb03d4aadf00a0275a326469a60bff90f13cf0fb9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBUM72406756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1e9ca2192d539d67683384a0b1de8f65aba268f137a4d927df53b2b64e9480. 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/GBUM72406136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4923d3c2fdb4224ca75eaf3a3a1db31e952d7e69db6ea8ef0b83e1e32783028f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/UKXN22483369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657a7e7224c222c159a876ddfa2654c9696b4e293c4bed1e483eff1243855b14. 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/GBUM72407746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ab8dbd9479eee43848f2eddd11d22fa5bbbce868b3059a6b575946b3c7c1c2. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/GBUM72406694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ab8dbd9479eee43848f2eddd11d22fa5bbbce868b3059a6b575946b3c7c1c2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBUM72406694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9e82d3cf3a3b8ff751cc7ee39391116bfb6eea3483b995028cc919f96b1ab1. 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/GBUM72406547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87bd7bd9ed43b31b49b917aeb03d4aadf00a0275a326469a60bff90f13cf0fb9. 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/GBUM72406756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91adddc5f0c1ef4954aede101c5575c5e6da2201ccded7889f754ebafdb5b8ca. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBUM72406705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf257cbb8ecd8103b02b6ef335766f64e14dc2a1d53d8fda371cc4aba74b32124. 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/GBUM72406994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7929151192f533b3d8fa7dd24137744876ad27520bf9dda089c897bbc94c0c9. 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/GBUM72407865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191bba63d6e1de0c82108e10818340b4b9c56b04b1b06a87a903c8748877602c. 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/GBUM72500751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5905fb1878003a20999c361b8a395e83689461299411c56a4c8768445566f9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBUM72500287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657a7e7224c222c159a876ddfa2654c9696b4e293c4bed1e483eff1243855b14. 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/GBUM72407746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ab8dbd9479eee43848f2eddd11d22fa5bbbce868b3059a6b575946b3c7c1c2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBUM72406694.