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 0x194a2d94c16c8063688a3f8f70cb34e5b5cfe4bedc4e04d45b1b5effe1e56ebf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f380181-7606-40ab-af98-4def5699040f.json and https://artists.proofprofile.net/proofs/artist/8f380181-7606-40ab-af98-4def5699040f.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 0x0d01b64c8cd336f95a2ed4af7d7d152855ab2f78839028c2fefe7ae4d0251188. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLV62302463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1951ad2fe3aa1cfbf4e2187b81f8aa2ebdd5cae7817cba693de1762059e2852. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/GBKQU2434437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4038010644dceb87ef2410b143aa815eabbba4c8cb781424527f1319e74c74cc. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DGA0S2486680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf2bed320461f0c495012018d327625772274c59c1717fabf966530e275950b. 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/DGA0S2486682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28072268249ed0922041a006a7c5adb5430ecab7529f24c54ea12dc21182cff2. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:54:49Z), 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/GBKQU2532987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe5969f6093e1ea2517dd203c6b1799263ec066dba60381b5c61a09f292a89f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/INP2X2500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe852160c37240fe71cca9c7b17e081fd56d5e9bdf59dcdf0fe7cd2c365a0d6d9. 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/TCAIR2456589.
Nothing But... Dubstep Selections, Vol. 06
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04833a9a52f60769a313dca256713a3840ebbd9196b57bcdf06da964c904d4d8. 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/GBKQU2191536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384c02e77e05321c63b2bffd98969dafc548aeb8757976ab1bd32647e77d767a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU2463819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f5ccad770b09084be8e333a1e45c7d081eb0cc927c64a153ae14e0af3f1606. 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/GBKQU2444537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd620575d328cae6cc58a223271c1074390d7722d9ef827e210487c6ef48cf2a. 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/GBKQU2413350.