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 0x0436f20838acefaaa7a6c88c0f2c2fe48a8adfb526bf7fdb30eda6a04c292dae. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8bc82c4-edf2-42a1-9ff9-867a1327dceb.json and https://artists.proofprofile.net/proofs/artist/e8bc82c4-edf2-42a1-9ff9-867a1327dceb.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 0x9e2e4c26394225b9eeaa875c9f63d823076fcedc3805ec971aaec5f64d5893df. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEY471982442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc232cc2bef5101dfadc47904c2a523ff609bf43561152c4ebe47909787e2b21. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/NLZ541901581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2b3ae684201ca473b062647eaa5d81198403f5be424b1d1d4cdd1316a6a9ee. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBCPZ2220864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1da9b0fc4e089468fb12a8cb13ec30ff935befd867bf45240c23e8bbf746b3. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T11:02:39Z), 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/GBCPZ2220866.
Spotlight - Mousse T. Extended Shizzle Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df5307ffd426d6c4b364f727a24d69061432cf9917aefcf55a029e698a4fc71. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:10:11Z), 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/GBCPZ2220867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a4e274c98e1eb31a0a466ac38eb93383ddebbdc89f416e37986c100641fbc5. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/GBCPZ2220550.
Spotlight (feat. Sarah Ikumu) [Sam Divine Remix]
Spotlight (feat. Sarah Ikumu) - Sam Divine Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b7824b6f12a2ef81502894086ab5afdfea8bdf18893dadd368a4edda17b8c2. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T16:37:46Z), 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/GBCPZ2220863.
Spotlight (feat. Sarah Ikumu) [Mousse T. Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8859f7075a525a7ce44553d21f60251e2a79ec7821959cc59b32cc7c69d3cd1c. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/UKU932481767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635bb10eec0fbdb993bf688dcfd3870d26d9dd27b618e81de9d4eea9d5d64363. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/UKU932481768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9b3dc259a59294b4321f1f80e9cc05bd57548586a86f9d7096a52497762a1b. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:28:40Z), 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/UKU932481770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ff9bee99ae20c7095baec45096be243124853a29292feeeaa0199bb77eecb9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBKQU2487194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc717a2e2c3943347730af8ab365ad1862a4bff548b56cf5c3c8bd423c4c6fca8. 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/CA5KR2133577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098e8c47e87220ca52549b3812114c38ec959ec49fcf3fe72c6fce549d020732. 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/UKACT2130817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe273df3af55e7e4400fb7894a41f28523562e79b0b36c7e37c3cf4bad5b5384. 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/UKACT2130818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67368710a7a3f68a7564791a87a07e00ca367744315f40937fa56ce90773646. 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/UKACT2130819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdec342fa7e4654d2a8a5a5887e77e914bfb948f92e4731fbd69026df7926e16. 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/UKACT2130820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7311a88bd081a1e34570ecd419c8d59003d805a01be46ed13ffeff75d65fce. 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/UKACT2130821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b4a5524881418a4211c7206ba828bf2f53d57b463e021e3a291fc083726c54. 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/UKACT2130822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607728e4888ee80b3fc006e6f922408de7efe2053bed0a3e1594c73fa519e6b1. 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/UKACT2130823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943a57fbbda503b3ab16493e1b4e7db06f299e769297b9021be6ed4dc10ba920. 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/UKACT2130824.