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 0xae39f373391fdeede4ae05cf87a818d50b91285f55eaa82153a4ab1b7c3dfa40. 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/6bfad174-b570-4114-b2aa-9e9d7bfca19f.json and https://artists.proofprofile.net/proofs/artist/6bfad174-b570-4114-b2aa-9e9d7bfca19f.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 0x60c160cb380eb68a2ea88416deed1baeb0ffc572d9c87d59b93ad57582a4a5cd. 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/FR96X1987757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977fff1597d54865f7343501ccfbd879d532f9f73f6efa2a920608b80e55b792. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/FRX281942601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9304418cf4473bb3597ac52a52d917b07f17b53c1f7eb35caed29cdb953a6f. 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/FRX281942603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4a8af03328a7e0f42497f9985ddd01821dd3b540a752af81554ae2731f261e. 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/FR96X2090842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e0e1add4406142aca20f9054d3b227db916762377eb894362a757dfb6da6de. 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/DGA062011020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00604ded37056c6a42601d81dd0f3783de9295bd9f18d4d755d5311494e24a7. 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/DGA062011026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274e3249f19475c6d86d28ec1ccfeed83cd13646151dcc15a9319360322a1a0f. 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/DGA062011027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaea40dbc1e19a6c3694caadef08d022817f19106d1da520287faaf266b30948. 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/DGA062011029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55c11168dd2fcecce48f7a59a3577263f85ab52c8361ffd30fda570031002ff. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DGA062011030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2702fe73702eeb03b9350229ac3f6ca7c705feef7f749049f0135d5d7c10dc3f. 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/DGA062011032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86aa2c271b5b019ede428e801d6e0a932b2441422d13732272d0f4dcf12324ff. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DGA0P2326935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624bc17a228e5f53a251b65ee1d47b365c5389c0da7daa359f18af9b1fb558c7. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/FR59R2420189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ef26a801b9a5cd21ae3dff4e095f9e75b0b5c472123ae5c085cd0b62b1f9e5. 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/FR96X1913285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b00c69a78ff6e63123d062cd5c75120521471eade045293d9e10fac9473f0a7. 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/FR2X41540163.