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 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 0xc5cd66b83b1145877248a63e1dd7c6a70fb753f50823c7e41714ce098564a257. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf08662a-ca9a-4ec1-90b3-f3ff9c43a686.json and https://artists.proofprofile.net/proofs/artist/cf08662a-ca9a-4ec1-90b3-f3ff9c43a686.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Ultimate Ballet Class Music - Classical Dance Music for Dance Schools, Dance Lessons, Dance Classes, Ballet Positions, Ballet Moves and Ballet Dance Steps 100% Music for Ballet Class
Ballet Music for Children and Kids - Classical Dance Music for Children Ballet, Dance Schools, Dance Lessons, Dance Classes, Ballet Positions, Ballet Moves and Ballet Dance Steps 100% Music for Ballet Class
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 0x544b5effa52562ff1edbcaea448e75c9663e33241380433f9bb5224483d5a4cb. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057589 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e35459251651656b50cb25ad653dbaeabdb7c2f0980ead6e6da53324627cdf9. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057590 — a six-check JSON result.
Rock-a-bye Baby - Piano Nursery Rhyme and Lullaby Lilliburlero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525e0fcb8d543ad753b9622b4641efdc0883c84451c3275828aeac3d5098cf3b. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057591 — a six-check JSON result.
The Dance School - Children's Ballet and Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591841abb0904813fff11293b3fab18c869078cb1cb055293b62911b079db005. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057595 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cedda862af43f2995b96b5060d5f056e2767382f57fc78261edc20c9a18ce22. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057597 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c31ef7212042fed3be5d3c6b9312530ff900d4552ea3f5d6c4bf6c8ff75817c. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057599 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11776a776c76b2cc72662e7108d76cece6edb28029e9e025bc147b6bfe25275. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057600 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a45dc0fac576ad813b5b990de00bbead1273e1da40e657838a45863496b9c4. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057601 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a19a4cffb76f8b156c36a52e923825807a6ea412a34935e62b0929433e95d9. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057602 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2700767849db8ad1615e402457bed60d90e31f1e4ac537cdc2af9937261340a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057603 — a six-check JSON result.
Beautiful Ballet Music for Young Dancers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4241f56c656d66e69b1259d87f918089acf50ee6b32789e55ba20b06279484. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057604 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617ea98563393a08db26bfa750bf325de041531afa74e5bef62fcc5bcd0830da. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057605 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13fd09589f3446e93b8b38cbdc5c2ed6c063ed69e78c28dc6510b098133ea76. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057606 — a six-check JSON result.
Ballet Dance Classes For Children and Kids - Test 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd27c99c012ec30772f9e6ce4f59bc1a30a137c6abb2953c0dc68ed54c9d7f0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057607 — a six-check JSON result.
Ballet Dance Classes For Children and Kids - Test 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b542883c81315935f5e7be568dfde6481349c769c679e30096d68312a29b2f. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057608 — a six-check JSON result.
Mozart - The Turkish march - Slow Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b86ef6946ab91bc5a92f41f0f7559aa615d65f5295cc85271d04507836eecfb. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057609 — a six-check JSON result.
Classical Piano Music for Children and Kids
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4db6d94910e3232f521c850f8d84a352a23a999c45a0d33e81d163f80b27648. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057610 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566795186ef209f45d779f10f87ba66e536d623fc1f9f87e255a632a1a7694a5. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057611 — a six-check JSON result.
Dance Shoes - Ballet New Age Piano Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd195ab4b85bb9a70b8cb1da3c379d9002dc2dce1b65ba9c17142babc67e5249e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057613 — a six-check JSON result.
Pink Ballerina - Classical Dance Piano Improvisation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa429fd833621a97f082a88a44538a2be879139e2dacd74ae1a026c25ff1fc2ee. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101057614 — a six-check JSON result.
Ballet, Ballet, Ballet! La Primera Bailerina. Classical Ballet Music for Children and Kids - Music for Children Ballet, Dance Schools, Dance Lessons, Dance Classes, Ballet Positions, Ballet Moves and Ballet Dance Steps 100% Music for Ballet Class
Primera Bailerina - Musical Preparation Given for This Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e35d140956cce9cc6775897ea7453891bb03866cc4d91f0eeedaa37c5c5e3f. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101058027 — a six-check JSON result.
Ballet: Ultimate Ballet Music, Pas de Deux, Ballet Dance, Romantic Piano Ballet Music and Sweet Songs for Ballet Lessons, 100% Solo Piano Music for Ballet Class
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a47b688ae61200c0c0f2be121b4dd0148810b1c95f15ec665d168ef13f2edf. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101252293 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edaea42c29877b1e9b1c4248bb87818a8a7a082b7a4cab80aca407e0cad4c4e. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101252295 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389dbf8faa20a6604368eaaffa285a2c659b4c36710b2259ec541a934777c47e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101252303 — a six-check JSON result.
Ballet - My Favorite Ballet Barre Dance Lessons Ballet Music
Ballet Class Piano Music - Jazz Classic for Kids and Adults
La Danseuse: Musique Classique de Piano pour Cours de Danse de Paris & Piano
Danse Ballet – Académie de Ballet: Musique Classique de Piano Moderne pour Cours de Danse Classique
Jazz Ballet Company - Piano Solo for Ballet Course, Jazz, Contemporain and Classic Ballet
Grand Plié - Songs for Ballet Show, Ballet Class for Kids, Contemporain, Jazz & Contemporary
Ballet & Dance Choreography - Instrumental Ballet Music for Contemporary Dance
Prima Ballerina, Love for Ballet – Instrumental Music for Ballet Classes and Choreography
Ballet Music Orchestra – Only Orchestra Music for Ballet, Ballet Class and Ballet Show
Modern & Contemporary Dance Ballet Music Christmas Edition
Ballet Dance Company Piano Songs & Orchestra Selection for Ballet Class
zZz Essential Grand Piano Accompaniment zZz
zZz Atmospheric Piano Blues Incidentals zZz
Relaxing Piano Ballet Music - Graceful Songs for Warming Up and Grand Battement