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 0x77017ef3a5dc084ddfacd6f3c72b999bc75cacd9514acdc565d60524764b6b77. 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/570c8bc4-ae6d-4131-9a26-41ced7fdfd0e.json and https://artists.proofprofile.net/proofs/artist/570c8bc4-ae6d-4131-9a26-41ced7fdfd0e.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 0xbb8d31101096aa4ca315899331bb686aecd7a2a65fdc43a98579d3ad0afddc23. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/ZAC050002529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32581d75fc093ada4822398d7c272b7499280192a096351bc37420fa00c82b3. 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/ZAC050002530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be6f5f03cde7dd52583a67ce277becd3ce99925348eb2debbbf9c6c5a7f5420. 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/ZAC050002531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c73a66173962f2d1f58fe5ce7affdff1a797c79c9616acce71378b87a8c6840. 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/ZAC050002533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f060fe8539d353a126452485f88480d8ac9571ebd3c4b1b536a168acf1c307. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ZAC050002536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d08c95b72b260fbecf0fb7c0cdb0bc013323f4741cf943f6ac814cd996456cf. 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/ZAC050002537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3e178a840d4e00d0c02a3d87a2196eebf4eaf4c353bcc0af77e933a59a8c31. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ZAC050002538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc79a6e32b91b4e400c0957ce3d3cf4a6190e1e2b49cb8bdae5deda7ee5f56a. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:19:57Z), 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/ZAC050300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d21f8d40c171170d120614eff12d349fcc1a6144ffc5af5f8b3c7d628620c91. 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/ZAC050300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd062d84558beac5c6e55339d815f386102e0a2da980b3f56f804b153d3e12ee8. 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/ZAC050300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f63d0efca44ef2b004140783eca21244c460f011ac6b235dc899116e844dc1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ZAC050501342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f42adcb8925bd6e10d24485a98eac54864891a3c1d43c8974e3737c6a28657. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ZAA010700397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8227b118508150527c4940bb0cbcae2e929d1fe0c9e635260647df87e9f20809. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/ZAA010700399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc172ddd24648c6a464992bf30a30f82affb6f493296c47e42e9a340771f348. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:33:48Z), 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/ZAA011000120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be73ae1b4f40a9bf2a235b4c45ac216bb6bcf04cb6cd967bccc76d3c89d3a8d. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/ZAA011100236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283aeedb873f8c32ec20757dc8de5998cf290a34f1157ce79b4acd04c4c69f4a. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ZAC050970004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd062d84558beac5c6e55339d815f386102e0a2da980b3f56f804b153d3e12ee8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ZAC050300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6556bb989c2e12c427a28c7c72c3c04918b18cbfc206fb99e5e497466965558. 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/ZAC050001800.
Crosspower Experience 4 - Sihlezi Kahle (Live)
Crosspower Experience 4 - Ngizombonga Ngani (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc1d5bb402111b56eddfceb515a28e045c7a9c4a275a0d8915d35b5238742bb. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/ZAC012301497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eaaee85466afd169498b64975203fbaac89596f409c00c98368629b7499da69. 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/ZAC012301498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2af435a8056054ef80cf43d233ec57dae8b95780eb6bf39cae132e06341611e. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:51:16Z), 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/ZAC012401384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515b25deb20635f5dcde37e1b59f05e4866959ef255d3709c601aac9d8e7f7e4. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ZAC012401385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b0a28088e8de98c05d76e1bd9a45697c7b51b0cfb2c4779c7d9e57b44def93. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/ZAC012401386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d3889eb018ee819aa05e330b0bfaf316775152b2588df95125c6282ebb5e00. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/ZAC012401387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdf28319b99708344bdc03e7df4c3744c2e29ff3794de369ee7f85dd2f4eb5d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ZAC012401388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0265066918cabdb5b1f42ebf23cc74206b8fc29bc745034e4ed0ce561f7bc83. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ZAC012401389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab7566fa0cf95f4be83e2962285dd85c4180556e8cbeec4d7913b6778b4bf6c. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ZAC012401392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823aa3ef8432fa63cdc8e539e46cd3c4f0a97d52e98caed3b71cbb4e4738e075. 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/ZAC012401393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09de1a5222617e68a86915d6192c6fab9ed7a79f6a3c80e5640a67799d5c713. 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/ZAC012401394.