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 0x2c938b41abf77a59a4ffe512d829187e0d87475118623a18f74e2ca1e90da682. 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/b6cda8c8-f9d4-4bcc-a91b-d9fd932eed25.json and https://artists.proofprofile.net/proofs/artist/b6cda8c8-f9d4-4bcc-a91b-d9fd932eed25.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 0xe8d6ef06426d652c462f4caf4eab2a4d0317bc29d6abdc2f135b8e31c70fd291. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/DKZVA1360197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658187bba89260a2d44188a1fc291bf9830f3a4a3851f2d10f38091683bf63f9. 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/GBLV61604692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718701734615eb96e8f8ca1792024e85d82a048b145f3f4621e72ee8863a5116. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DKZVA1761529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d03f6c0a15764270e3f36d2b6ddb5354cf261a3021b26f4066fd5e8ed50179. 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/DKZVA1861769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f0bcd68b2685c8d06e11ac234a00ec45d37eef589ab5afbb20d9097db6a014. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/UKR6V1912710.
Science & Spirit (Transient Disorder Remix)
Science & Spirit - Transient Disorder Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4aa2d504dec689791009dc70684937f93c883b3d5e22172c51df8ab14f8fea0. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/GBLV62019429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c08218cf50b5401316418c5df05b48c452d6cda623ed775cc0cf095920a8f1d. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/UKR6V2116971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcdeca1555f4d8ab9059c522b937fe3ac1692f0ea09b997046105e54d7c00129. 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/DKZVA1861856.
Psycological Effects - Kalya Scintilla Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f40cdc2d4d357a85bf55992609596634b17f3acdded9d8e82c8347a5dac27e7. 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/USA2P1664221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1577712fd4aa4fc6a56f1436b703881a0afe1aa46fefa3f55cf897cb0a6456d7. 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/DKZVA1260042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1355cce49cd820cb6b0b02a001b194ff88dff83b0920585f79f7d2807a578f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKZVA1152005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a42d16b9a979478de4fc79a99de7725eff27eda9af6e90ed024283a44b0216. 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/DKZVA1152012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ca1f45a011e485cb078a151a2d82ad5a8354fda557f4f20e28f6fcbe848f82. 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/NLF711403973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db876379230e31ed9eebf4f1ff0871385887dc8ba959d6ff801bc49c67995c0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLF711403986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd838179da844c1f0bcf39ef74546edd4759c6cb20f904c69b4ce6adb823516. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/DKZVA1160912.
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 0x1b8dd383f602f545a5f1b8ded9b257d19c6b1576153eaaff65d67e38094900c4. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/DKZVA1761337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15de5676aaff926ebcc8b29b5132142c2af4cfe5c8b2b8fdcab99a22c65ddeee. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/DKZVA1360229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580fd06e02adf2fb2f82ff7f59b06f07db925e371131ba8040bab4665f67401b. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBBYB1401482.