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 0x39daaaed0c71c44ae0837b43f99516956231d6c159591f438a533033f821e5b0. 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/21640ad5-2217-4434-9478-75707317a338.json and https://artists.proofprofile.net/proofs/artist/21640ad5-2217-4434-9478-75707317a338.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Westwood: Punk, Icon, Activist (Original Soundtrack)
Rachmaninov: Rhapsody on a Theme of Paganini, Op. 43 - Liszt: Piano Concertos Nos. 1 & 2
Les grands classiques de Mozart à Beethoven
Sonate Alla turca, K. 331: Marche turque
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 0xfd0704e48776d3bd1ec14c34c215cc64777c59081bfd811477c2e6dceec4fa78. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRZ299507010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fc1a1d564b5b554e1cfec500d97e24296bfd24b2406604815c144832034731. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRZ299507030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221aa875d763b9faa6c8b3db993acdfeba4c619e21941dec8674508c5e1516af. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/FRZ299507040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a746baed0e5b0afb0fcb46b520c3892a23c60d41a20680a7798d1d37d401bb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRZ299507050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2198410f35d5ea28d0d59969f4974315e4fbf8c3551c902f45e1183e9ea2a4d. 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/FRZ299507060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073055f4a9c49293dc6f5b60f01f19bf6d9d0558c063fa625112107a9f716e1a. 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/FRZ299507070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf146df233f2daa25a5e3769c8ca2f57cc6eb394127342bb800715c2410b1e749. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRZ299507080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31c73d5e6d3e15f247fb704ebdccafbee9659b40c8c8457bb0f219c48b873bc. 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/FRZ299507090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4af4c732690016b76dd918ab0b6fdb82b2b6d3f09f86db543482f6ab0833711. 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/FRZ299507100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02abf38caadb7f957d43f120707b2cdb4d13a86e030316729363622e2b33725e. 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/FRZ299507110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd991333524920e9053d66bc569a4d158b7af3c6dea5baf0fbec5849aeb8eb941. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRZ299507120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0414893f592a524b87026c96028664a77d1903c1dd8894e945fcc4cd43a687ae. 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/FRZ299507020.
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
Los Nacionalismos - Rimsky - Glinka - Borodin - Tchaikovsky
La Apoteosis de la Opera - Bizet - Wagner
Study Music - Classical Music for Thinking and Concentration
Classics For Babies (Early Childhood Stimulation, Education)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1ddfcc33c409dfd39565e5826822f026cd2ab8a1236bbb1bbf35a77af29124. 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/DEKU70890509.
La Boheme, Act I: "Si, mi chiamano Mimi" (Mimi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9f43a10763e499d9de9ba563764ee3edd8e97efd4a24b16c3ec12c5505102f. 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/CZA168701515.
Romantic Moods (Puccini, Brahms, Ravel, Chopin, Debussy, Dvorak, Rimsky-Korsakov. Donizetti, Gluck, Locatelli, Haydn, Martini)
111 Classical Masterpieces from the Movies
Roadster In Gear - Classical Cruizing Favorites
66 Classical Masterpieces from the Movies
Dramatic Moods (Janacek, Brahms, Leoncavallo, Bruckner, Corelli, Nielsen, Mussorgskij, Durante, Mozart, Auber, Glazunov, Bruckner, Gershwin, Elgar, Corelli)
Giuseppe Verdi - Géniové světové hudby V.
Study Music - Classical Music for Thinking and Concentration (The Night Edition)