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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8b4975a9d08ab6b8a9d0d75f0c49cea876926cb0840931433f0c03d66dc725. 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/f1766e03-3c6b-4ce7-ad7b-7897d2e6cbd8.json and https://artists.proofprofile.net/proofs/artist/f1766e03-3c6b-4ce7-ad7b-7897d2e6cbd8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kandis for Livet (Original Motion Picture Soundtrack) [Digital EP]
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b33f08cccc563ceee8eda5c6dfbcb56c3b000d5953a5dd592ccf4af4de70d2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKK031700121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4cd6d817480ccbc74aa214bb61838fb6641a854564d1a54a40b0e01cce95aa. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKK031700122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232539288e6d9a76ee4df98f2f6b8405bea3c491395537bb7cda5c9a48da897f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DK5C50144115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cab56451373ebe84fd7ed290c93b661c16a57e6a8cbb710d068ecd7471f5019. 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/DK5C50144124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe68ff6d6e5a9eb58109996fd0af789ecd399e0adf27a964633a8964b248a4a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKADG1600143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a80798970d9a369cc148eed3c549e39ce2ac7380410c6a7324cfa51ce016d0. 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/DKADG1500291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cd1d17757c67f349a5da8afd9f329c00bf8df853a0b6dfe1cf047d417ddb75. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKADG1500292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ab8ac3b62f9a0ecc35c984f47feb0bf5f51f1eea19db2abf95d216956396fc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKADG1500294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaac9c9eeb458fa7d88050399c743cda26206b9c08cd8995de02664133ff1345. 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/DKADG1500295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91210e2d9b492e85449a1bb5e85d774ad2ce1cbbbe4402249fd5ad6995922d59. 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/DKADG1500304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0e8a8d8eadf30fe52e7cf0802b104d944516491aed3d1aa2422348d02d9b38. 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/DKBV70603006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573e622a83e31bfe5d6703dce8612d2dbd92e1a41b1b3c9ddef5e43e1ead3d33. 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/DKABA1102344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18da00b83d50d4fafbcb67ef9ed75a5b69f789102ea415b228754c898e498849. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKABA1102346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dda307d0de16b6c2e164b4b1212a20b44b0e7b872c50454837f39738e453260. 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/DKABA1102348.
Jeg kunne ønske mig (En stille nat med dig)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0359a73e2fe435c3279a89590e1e12a657ee2843422f036b3ff73a96f57fa8e. 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/DKAZA1401407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934b828570f7480b1210691f2de6d0d0fedc9a05ec8e4ec990d42c0d5533383a. 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/DKABA1100493.
Næsten Aldrig Regn (feat. Johnny Hansen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6aa684545c6e7a4ae12791a67bb465b2d5d68e43bc144128e4872b713699b4. 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/DKADG1400699.