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 0x8e30ccedd0e0085f3fc45d1f8d1c8e5ff16c28c1abd4e6a1283013a991e889d9. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/194ba93e-f944-4e88-975b-cc44a01490ff.json and https://artists.proofprofile.net/proofs/artist/194ba93e-f944-4e88-975b-cc44a01490ff.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 0x06e168d0d1cf2e87c75c71d2d6e188af79591ac153ad7586391b3888f0d0ffe9. 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/DEG932402514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e67ad8bb927ca30b3714f2f0063a21988b062439d89f3b7bac6dc265f9d7cdf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKX532100252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507e18759e4cfcc4ffa4e1aa488fee20acfaba5f10bc21eb28fbe1818e6a8555. 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/BEN581800055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc768e3e22b22678c18ae8bacaacff16478e468703a214f80795b7b2946a5e033. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BEN581400160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13375e3624a840d75410b667ca328c142640911bf5e0dc5c8b68490dd10e46b. 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/BEN581400201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014f3e72e5ebf1a0f2e715db0380a6c04ed106b5c25d15f165e82e4edb936c42. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/BEN581400196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482d856d4cd3eba9306348ad12eeffcbfbaea8388c340d69fb38f816d960bea9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BEN581400199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ce5c2de1f6762370d2dfaa224dbc046bbf7794cfbfbc018476933e5b285fb9. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/BEN581400200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae770c329ea7a2252495d826938b6459c0f24e43b081b450c85ade52d0c811b3. 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/BEN582400238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc7a996b20d4da0f2de44e70d99230586b9605684b5786b318c7158243bc3f6. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BEN582400237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ddcf30a92f66ac696e88184c46e7bd7ff06f97e73e09576e243556dbb663dd. 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/UKX532300304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980a56768a5f8cd7854a3e1cb6b7da27bf02e6d2be2a993d8dc9eb8ae9777f9d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BEN581600383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea9785530792570769c2fcbc28b90abe31d30fb123657add8051ed43d339901. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/BEN581600213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5d876b96bf2951d203303d8225c5c4da1c0b1aec12a7106366fcd716c3acd7. 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/ITDY21600070.
Sven Väth - The Sound of the 20th Season (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e6f25b5c765b1d3b017b6ab788a9a7c965324e3ff92149a349e2970f20e63f. 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/DEQ201901966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e168d0d1cf2e87c75c71d2d6e188af79591ac153ad7586391b3888f0d0ffe9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEG932402514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6057b08e56be229ad57ff57bb8aacf1b06edc3194f9651bbd2fa661ce4f0188. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DECY52100152.