1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xa056fcde467f08877cc626f62310e23192faf47f8f536ffcb3dc2727323ac491. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db34e0cf-686a-4ee8-b814-51ba7b90a355.json and https://artists.proofprofile.net/proofs/artist/db34e0cf-686a-4ee8-b814-51ba7b90a355.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 → block OTSBitcoinBlock must exist at that height 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 0x073f31ceee8eda6a0ffd2f78237eca0b100d4e0ff9121ad1e4f7095773e181ec. 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/DEXO22462302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1399982d7aad2e9ecef519bd40d00a80f7c4cebad38e85ed19d98120c72e6d47. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEXO22462304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f84988ceb2e39f045f4eac0a97e9c0132ca90ab57888c218779802fbb293eb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEXO22462306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22e583b66b75a3406a73f2b178c5ce9a2575a0b0a428423a29f80cf2f774e89. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEXO22462314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfec935c415649f389d7e10a35b553b0ef6cda0c078f5a705285fd95fc9d15ef. 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/DEXO22462315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf546c575f494b695b550c53e3592bf380a65c197ad2a5b83bdb4f1d80be26506. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/DEXO22462316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243e79f2aa5c37803bc52d0a534ac9963fa5f905f380d30cff8281ccee26e581. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEXO22462318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf544de362129974d30968a9a22f42a84878253c841215d87f68f62aff92a0f0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEXO22462321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a91dd8916af947be01c9523d677a78ee4fac89c867912dff1bccbdb0fa1f59. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DEXO22462324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf392c30e779017fa9ead500a521b92620094fa0ad8c84f4c633a7e15c8876819. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEXO22462325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d9d31ed00d61816de65e06800cf10a467d827e5642ca7a80636ffbb336fb71. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEXO22462326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f0760a4d447bccf8958fb127408238c43a1cbb669124a3c5ddcaaeb6c3c108. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEXO22462327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff93187c472e2266f556e54a4f6394df35b9ef78493297bb9555ee1117e69c37. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEXO22462329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bf0098386c50d19ed15810ae9f5dff102152bb1eb5956ac9d0774e61b920c5. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEXO22462332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f6f63b2d80c8de398d7acc899c5dbeeb9baf87b2043a30726ab2fa37db43b1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEXO22462337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3281da168063e8add57d12c0f0529a6675895ec0c3ac90df0572a2f3963cffa0. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/DEXO22462339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd97192e4e9d6a42ecdf0f148fa518e2f864ff4fe399e7650ce2d626e0bdb936. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEXO22462342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827f1b64a74abd68d84cef3ff31682ff1745d94b872103d02af7f6b8719ecb99. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEXO22462347.