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 0xf0229f6e82a722d529f67320940f4041011b572f423d0e4e21b4f345a60052b6. 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/95117f6d-16ed-48ab-9678-cd33c1eba71d.json and https://artists.proofprofile.net/proofs/artist/95117f6d-16ed-48ab-9678-cd33c1eba71d.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 0x5ab6814eda41adce34716197829beeeaf9b516cf96a9572439793597d85bb651. 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/NLJ9D2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186875c30fc17c412a117b78a740f723e2489dfc2299a20c0615ced9ce71318f. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/NLJ9D2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e7259a0692c8967a2a0a8f8a48acccef67e867bdf643ec354696d60d4f87b0. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/NLJ9D2200010.
Legends of Light (Instrumental Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1593cebdb2c479e40286c4ddfe8d6fa6d6979509f892ecfa3d301c5d3688b7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/NLJ9D2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f231369179aa567631a0138bfe00d9915d750d2dd4544c89b8b1d39576cd6d. 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/NLJ9D2200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894fa2e226f4b0ad79fd151d33721248406566861d1c709b44cf5eb48b47a530. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T16:58:05Z), 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/NLJ9D2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab6814eda41adce34716197829beeeaf9b516cf96a9572439793597d85bb651. 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/NLJ9D2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f8e4a5c69ff11b05263a11703535d132e7c3bae0601c0217a2da68309618a4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NLJ9D2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aed34e505b2c78c1648323d39b43704f00dec4c640d5cb8bfbebfaed7544a2a. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/NLJ9D2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2417bb353a810e39e05082283b8a83838fbe9719f39c816251f5473b438b17ad. 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/NLJ9D2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa210daf01847f88ee9c4a2f38d220fcf3da2adb5859c5a2ff1ee53c31719cbe2. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:44:49Z), 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/NLJ9D2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb69cd21665978d6554290adedd93c7a238c988c178f722af49f6955491990e3. 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/NLJ9D2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd63ccf5957b9905e6d1c57e2e4957ef0f748a303cf98de09fd034a1a78ca47b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/NLJ9D2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186875c30fc17c412a117b78a740f723e2489dfc2299a20c0615ced9ce71318f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NLJ9D2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13d3ac9245aedef7169493ea7ffcfb7a9939b7d1cccb2687e6df2c866f33883. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NLJ9D2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b291252e263b614f25ac19bbc1b861d58c7c6b4b86987b255eaddb2f0b759a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NLJ9D2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e7259a0692c8967a2a0a8f8a48acccef67e867bdf643ec354696d60d4f87b0. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NLJ9D2200010.