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 0x4f22eaf46169a6b0bb631dea7df8a7a9acb19db3c02208865e4a28da3d949fcc. 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/48a9f31a-3dd9-4589-b185-758dee476a3f.json and https://artists.proofprofile.net/proofs/artist/48a9f31a-3dd9-4589-b185-758dee476a3f.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 0x552a2fcc9058c3261341eacdee331ec1f6316fbbc6f8160e1b7082f8f514b260. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/AEA0D2252234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c7876e38f830cbdb33c792f3113fb17ad70bb18a9504c2d3bd5a57c9c42316. 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/AEA0D2280028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ee3065d17f6f9a1856334d69dcf6690b04641350c0d3f6cf1cd51eb03dcd01. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/AEA2M2361075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70d46a9a84a6adadb77659db858437212d9cc176d683ee7be76ac6269ab5252. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USJ3V2408458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22487d7941f3d8ecb019682daac9259da8e9c53e16b293fa3c46a227fca6e748. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USJ3V2408459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ca0fdab290cf15901a052145e1f423b249aca50b7086cc8156e0dbd3b064c1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USJ3V2408460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda1f4909189dc862a09372d2b9c8c8421215aeded788eb8e3c567bd894aef09. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USJ3V2408462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8e4da030f60f9f89771987ee99d8529da41d1973c9b8ed962a8930fd643968. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/USJ3V2414334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a93e86dbe478c9e6afdb9c67c5f30ae9ded147594173ac114a08bb96ce848d4. 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/GBLV62412309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbd517fd3ecfe5ecf57176878992e8343b139766a02cfee27079347105eab9e. 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/GBLV62418305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8520c37fb5e0f369ee6b3a35f95275bc1684b9808a9b18132d8f1014c8670d. 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/GBLV62412310.
Ibiza House Classics: There Is No Bad Weather
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10cd02c696ea2265e08bb1b8538d43090d575787051e809f177c29d1299074dd. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBKQU2518966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79be7861776b4e2f2ba2539ec0b460ec1da143af8f76180310e3c4629fe85611. 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/QZP7F2573335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1473f80ac0eb84ab3688b6c5720945d8ae2c0738dd7ef3a0bf020c1122eec689. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZP7F2573336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0d2d059fbdad19b33f2601fb1d0d7eb003af1a22406d6a19583820d7981d50. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZP7F2573337.