thumb|right|Wendell Brunious in 2016 Wendell Brunious (born October 27, 1954, New Orleans) is an American jazz trumpeter and bandleader. Born on October 27, 1954, Brunious was born into a Louisiana C
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 0xe26c180f1d1dfd9747c82cb1fab3c908808399bc048c3279e67d54fbb7257b65. 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/dc34244f-b3db-412a-9215-f7088a54dcec.json and https://artists.proofprofile.net/proofs/artist/dc34244f-b3db-412a-9215-f7088a54dcec.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 0x2b974cfe10062e8e377aaf8bc78e2ead20704224c2cb9777fa46ac9e49b2e164. 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/US2GH0349002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767c4d1de183f7e3336712396e7f9c56e3ed89aa8c9c7893f926782040e7e9d9. 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/US2GH0349005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8fc7c63f8bfca5f28dc5c3b4f531d64d82e5d25debef86e10dd6d1b01ea953. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US2GH0349008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5caaf53f7dec6df2ab5c748f28bf71cfeb9b72c2e132067f9c7ca8fd4a9244b. 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/US2GH0349010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902f3d054e7a03681681768e636cbe2e264e3f10939dce6f41dbd704be80aaa0. 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/QMDA71529707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4968d7798ecd1efdf42182bad9558f2a1d74fd6dac753df9f704a9fe19fde3. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:22:45Z), 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/QMDA71529713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc143184a451422c0e6f173d9e0091135da25e2f26605dd4355733197fe1a822c. 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/QMDA71529714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84d971b776cea9ce884a2f00b1b09f1fa1a179bdcc32dff0f768cd4e9865d9e. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QMDA71529715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ff52d6671ed0feb1f80f5e81bbd46f2da1e0c2754f026f95911c66deb8da2d. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/US2GH0846001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdd176476208fe3b084ec68957ad4949b049099e4c4c4691c261e1d0c0da493. 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/US2GH0846002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72634e1075a4b9cc3057595d30655bd83a393f061aa00fb98b2275bb75e341f. 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/US2GH0846008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e813bdf9c1ab26f9f8b6a76fedfa335450eb7b8f7b113fdfe9aff19453ae57. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/US2GH0846010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77e2902ea799d6c36b8fe2f7341de86a36b13606072315507367ce752facca0. 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/US2GH1619401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485bf79fe6254a5cf0cf2877c244db9bf5fc8bf59299126e8569f10c72f3b73c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US2GH1619402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11333991a4582dd8ffad15389b08395cd7b991b2b20f52701e8e75d1a1eee722. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:56:21Z), 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/US2GH1619406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a42dec3768e6e81317b73eb7c33c6e9dce4752aecd24e99e8014648fdb66c50. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/US2GH1619408.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch