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 0xe03a817aac48c866819ab7660f167718178da9e791d053e5384e571c84159038. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89935557-59f9-43cc-9d63-0cbe3b10e8c6.json and https://artists.proofprofile.net/proofs/artist/89935557-59f9-43cc-9d63-0cbe3b10e8c6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Deborah's Theme (Live) - From "Once Upon a Time in America"
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 0x5a4ab39d2ca01ee5cc314d38a205992e481ceaf54d80683b08af0cd346decace. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITD542001770.
Once Upon a Time in the West (Live) - Main Theme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5ef766212ad3e7192c415349c27d446a5e62fc835769c7afa1cba61e7430f3. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:56:39Z), 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/ITD542001773.
A Time for Us (Love Theme from "Romeo and Juliet")
Greensleeves ("What Child Is This") - Arr. for String Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1467049c8fe502c76bcdd11e328e2e7f8cc36f642be9e5fe1892ab2d527282f5. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/ITD542101449.
O Holy Night - Arr. for String Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5ed32d4c101c57d2c13ca3219e86426cccb49ec4bbaf20905df35cc35d38fe. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:56:36Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITD542101450.
Silent Night - Arr. for String Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da18c72bbd483446725af528406331de5780c70b8ad608b15d6465451c257c4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ITD542101451.
We Wish You a Merry Christmas - Arr. for String Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1193572ea51ca234afe690d963a67e71b56c99496b39e3a91c63a18c938717c1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ITD542101452.
The Lord's Prayer (Arr. for String Orchestra)
Amazing Grace (Arr. for String Orchestra)
Rondo in F Minor, "Kendall's Journey" (From "Succession")
Piazzolla: Cuatro Estaciones Porteñas: I. Verano Porteño (Arr. by L. Desyatnikov)
Piazzolla: Cuatro Estaciones Porteñas: II. Invierno Porteño (Arr. by L. Desyatnikov)
Piazzolla: Cuatro Estaciones Porteñas: III. Primavera Porteña (Arr. by L. Desyatnikov)
Piazzolla: Cuatro Estaciones Porteñas: IV. Otoño Porteño (Arr. by L. Desyatnikov)
Libertango (Arr. for Cello & String Orchestra by M. Skoryk)
Oblivion (Arr. for Cello & String Orchestra)
5 Lieder, Op. 49: No. 4, Wiegenlied - Brahms's Lullaby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4ad03d70c34b9d6bbfc82a39e6b57444d6b71b68e1fffd2bbf5e16934889a0. 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/ITD542101454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bba25b4e10132de7b83533822a667f1106fc9f8f03b25954d43680dad4fd8c5. 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/ITD542101415.
Trois gymnopédies: No. 1, Lent et douloureux - Arr. for String Orchestra by Matt Naughtin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1ca9de387e092c44b6822382906197527c8f43a3550273652f8f23d1e551cb. 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/ITD542200053.
Trois gymnopédies: No. 2, Lent et triste - Arr. for String Orchestra by Matt Naughtin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd9294d7c7e5bdb3a96d97275e65a3fce282588045691d7e969329f63b79f26. 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/ITD542200054.
Trois gymnopédies: No. 3, Lent et grave - Arr. for String Orchestra by Matt Naughtin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ec4d8b31aec31156e8999e59207b7d85195a1151e6df903846dc067193eef9. 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/ITD542200055.
Schwanengesang, D. 957: Ständchen - Arr. for String Orchestra by Matt Naughtin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42e4e33b9887f2882f38656a8b87029c0c040bb8365c5e6b9d2fbddb414e968. 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/ITD542200328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7d8634133d3a9a83d1a6c34c5c3d0aa185b33064c22bc6128d81d81f02bd31. 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/ITD542101557.
The Snow Maiden, Op. 12 "Snégourotchka": X. Melodrama
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa5a474b2714a69392ab99d8fa0a94fa3b59f655abe92f186880983bb3d0130. 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/ITD542101526.
Serenade for Strings in E Major, Op. 22: IV. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e5e98f280d4841dab60d2ffbb7a9585d1a33254a491d00992c543accb6647d. 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/ITD542101410.
14 Romances, Op. 34: No. 14, Vocalise - For Cello and String Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3880f24c84aaad7e5bcf1aa95f0693ee65d51f3939c4c3ba14e20c84865485f. 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/ITD542000137.
Gianni Schicchi, SC 88: "O Mio Babbino Caro" - Arr. for String Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22971be013cd1d2098c1d984cf119e588d50a714282b42d9a060faa06acb53ae. 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/ITD542200335.
Rhapsody on a Theme of Paganini, Op. 43: Variation XVIII. Andante cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9053fb46efc0363174f9eb19d4947e0c79eefe2dbf4d179031218053d3fe3868. 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/ITD542200326.
Suite from the Gadfly, Op. 97a: VIII. Romance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86615fdab08d20429c5b4748bcbeaf39b0ecdd970dd8c14c0bdbeec65015266b. 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/ITD542200327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd70cc0a22dd63f8e794cb58e774b0ab1f1c8080d5122ef20a58cda7245ef3c. 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/ITD542200324.
Orchestral Suite No. 3 in D Major, BWV 1068: II. Air on the G String
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811e5dfcb6413dc482aaea1c784c94c99f36d4fbe271e2a6d206b074a5596864. 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/ITD542001993.
Thaïs, DO 24, Act II: "Méditation" - Arr. for Cello and Orchestra - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde604a3222de1a3df7d42ecb3d007ab08d5be27e1cfdf943c68823716ef98eae. 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/ITD542001777.
The Carnival of the Animals: XIII, The Swan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed7c0f9daa59ed6d0965351dc520ebebdcb85ca8ec62d5b96f362f0e73489c0. 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/ITD541900874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e38c9be26161a046a4289ad46733b0540152fde2e470aae219d37b19a0ec49b. 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/ITD542001537.
Divertimento in D Major, K. 136 "Salzburg Symphony No. 1": I. Allegro - Live Recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a15483cafee51d1d77cd5287b6d8eabf1466649add2164255149889476f03b. 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/ITD541900010.