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 0x481d00e8656b29800bc14dd5f9f88474df8570da38fbc7596dbd0bbb7059662e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/746fd7da-1ce7-41b2-888d-176da4b7271b.json and https://artists.proofprofile.net/proofs/artist/746fd7da-1ce7-41b2-888d-176da4b7271b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tristan und Isolde Act 1, WWV 90: I. Prelude - Live
Orchestra and Choir del Teatro Giuseppe Verdi
Wagner: Tristan und Isolde live Triest 1969 conducted by Toffolo
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 0x4fdfacc4f7f96e1cf6c2017b97fad8388f924578b4ae811ad93878bfd5c01ae0. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USB8U2401683.
Tristan und Isolde Act 1, WWV 90: Westwärts schweift der Blick - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475a3cc0a85658e4ae0017ec31609cb6058178940d8b0b19c4576f7e6dcc5812. 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/USB8U2401684.
Tristan und Isolde Act 1, WWV 90: Wie lachend sie mir Lieder singen, - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a575b972007cbb972ab841aba702bb41900fa3f56c7d687ae7e328ad9ece64. 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/USB8U2401689.
Tristan und Isolde Act 1, WWV 90: O Wunder! Wo hatt' ich die Augen? - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa878dcb70d7d91ed55f221d86bc7cc9c71717924d91404be96e6c91fd1b44c0b. 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/USB8U2401690.
Tristan und Isolde Act 1, WWV 90: Herrn Tristan bringe meinen Gruß - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958efd15c6e7a18c7179bd9143858b145650971dcd2d104a4797d4cdbc602a93. 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/USB8U2401693.
Tristan und Isolde Act 2, WWV 90: Dein Werk? O tör'ge Magd! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e47d3a680d2cd689f8933366b7742eadebf06c2d47bfb6255be9cb7565f722. 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/USB8U2401702.
Tristan und Isolde Act 2, WWV 90: O sink hernieder, Nacht der Liebe, - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf281023a2af7a47d2bd979db1b40c28f75e3e3468205526bda12c08e88eb3ad4. 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/USB8U2401704.
Tristan und Isolde Act 1, WWV 90: Wer wagt mich zu höhnen? - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf673d43f704f7a342600d421cbd47a7d0d141cb26252b7f928018cd2bfb3917. 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/USB8U2401685.
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
Tristan und Isolde Act 1, WWV 90: Mir erkoren, mir verloren - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c5c220c87f4352218bf3498f861845fd5e6cc0d61e6afc2d1408225ca0f763. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/USB8U2401686.
Tristan und Isolde Act 1, WWV 90: Weh, ach wehe! Dies zu dulden! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fba4265cd4670bef8d2d1438c77a34845f238f2a8631fcf873525acdfc3d67. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USB8U2401688.
Tristan und Isolde Act 1, WWV 90: Welcher Wahn! Welch eitles Zürnen! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8ba9db7c94d6faab2d4718fa04bd2adc4ad9dc6bebc8a57a5091bfeecfa1de. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USB8U2401691.
Tristan und Isolde Act 1, WWV 90: Begehrt, Herrin, was ihr wünscht. - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78603823c4b7d11631a5c3f42a63d1a7bd59ffb013fb8d8822f32a6b9e53108e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USB8U2401694.
Tristan und Isolde Act 1, WWV 90: Da du so sittsam, - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dab7133895e699d6377729577894bcb08cd1941518279d50352dd6c8d8b3e6. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USB8U2401695.
Tristan und Isolde Act 2, WWV 90: Prelude - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc6c85469cbf2f5cfa39cb24459310a1ec8960e1fcfa02e85097d466c483326. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USB8U2401699.
Tristan und Isolde Act 2, WWV 90: Der deiner harrt - o hör mein - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5a200f8abd08104bee2bead81f8793aefd372ab0221c038a239ade249b3d35. 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/USB8U2401701.