Belgian Radio and Television Philharmonic Orchestra
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 0xebefd189e63a806e3b7f10898fe6f7aee51475c2b3c442b10e5335587d91f43a. 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/276d5404-e1fb-4de2-a217-1099e9b4dfb9.json and https://artists.proofprofile.net/proofs/artist/276d5404-e1fb-4de2-a217-1099e9b4dfb9.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Stravinsky: Rite of Spring (The) / Card Game
Romantic Orchestral Music by Flemish Composers, Vol. 2
Romantic Orchestral Music by Flemish Composers, Vol. 1
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 0x1a49881d613b28f962c588577469f704fd0b708e50b3991dacfdd4d624d3ec51. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/HKI199824706 — a six-check JSON result.
STRAVINSKY: Firebird (The) / The Rite of Spring
Schumann, R.: Symphony No. 1 / Brahms: Symphony No. 1
DEVREESE: Tomblene / Violin Concerto / Cello Concertino
Devreese: Benvenuta / L' Oeuvre Au Noir / Un Soir, Un Train
Debussy: Images / Le Martyre De Saint Sebastien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a4b58a07b31294590efad9c6fb0f34b2e925328f1ce32a9e26251cb930c330. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199112902 — a six-check JSON result.
Milhaud: Scaramouche / Glazunov: Saxophone Concerto / Ibert: Concertino Da Camera
Brahms: Symphony No. 3 in F Major, Op. 90 & Symphony No. 3 in F Major, Op. 90
Bartok: Concerto for Orchestra / Music for Strings, Percussion and Celesta
Stravinsky: Firebird (The) / Petrushka / Suites Nos. 1 and 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b5785e574582e0ac237e4668f0d11fd80c91820fcbfbe9ecc73cdd74185d76. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199313809 — a six-check JSON result.
Manon Lescaut: Act I: Donna non vidi mai simile a questa!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab5213d6a14a180866aee7ad3aeb1fa45b9274c357a2cb301f3fdebbc8a7bcd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290107 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9dac1b97d9d364b188a96ce2bc87c49d238e82de5f73aaf43e8a437b771c7c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290204 — a six-check JSON result.
Manon Lescaut: Act II: In quelle trine morbide
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde056bea8a4fd2e816b7a25fab3965ec5aa55a519159f29123714b48319ed0de. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290114 — a six-check JSON result.
Manon Lescaut: Act IV: Sola, perduta, abbandonata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a332f6df1748a6e9011ca3e2ce3be10732348176f5cbe275c134c4e1a27ed6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290213 — a six-check JSON result.
The Firebird Suite (1919 version): Firebird Suite: King Kastchei's Infernal Dance (1919 version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa126d7136c22d6845dc9590d3a8776905fc08b19e324bb1c97e5b97053e9a8a9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199709007 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715e2ae41131374786ed2f168223627d9105cdcabe5013c31a7254047ae7aa11. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199238224 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa532a57847d6de341fd270c58d7da15071b5b4e839a8c1f7829ce96422adb301. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290101 — a six-check JSON result.
Manon Lescaut: Act I: L'amor? ... l'amor?!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3107172f9b659992ea8645cadfe7aa5588e35360e4038a27dd68ed65cf329a89. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290102 — a six-check JSON result.
Manon Lescaut: Act I: Tra voi, belle, brune e bionde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e7ed7bfdfe4cdf69ea375c7f73825d9e043d64263a7ee3c1abaa04779501df. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290103 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8a0fae9be9e754664d3add3bd15443cbad73d5999d7f821f04f401686b1cbe. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290104 — a six-check JSON result.
Manon Lescaut: Act I: Descendono, vediam! Viaggiatori eleganti, galanti!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffd93b398be34a8c128723ca1656604fa6aa03d2e4e07f55149743a6ad82723. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290105 — a six-check JSON result.
Manon Lescaut: Act I: Cortese damigella, il priego mio acettate
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778945ab1d106507e298408048540908095fbf71f551a292a19ac7b52c286a1e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290106 — a six-check JSON result.
Gianni Schicchi: O mio babbino caro (Lauretta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d03de8bb32c8451a5dbcbca7b1cc8cda9c6b63186fdcae93cd9a0fa9dafa34a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199310909 — a six-check JSON result.
Le sacre du printemps (The Rite of Spring): Part 2: The Sacrifice (excerpt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b416814c15942a89068e8defd0892c14676f3749ddf4a2d8d1d51a3ffedf744. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199709018 — a six-check JSON result.
Manon Lescaut: Act I: La tua ventura, ci rassicura
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca06def46dee176ef3cede0785e216b947aa7fc0c62e1847d845d653e0f2c6d8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290108 — a six-check JSON result.
Manon Lescaut: Act I: Vecchietto amabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37a0f30854e28d1f8c5bd62b64e7888e6fb8ee102f40158a42890d1b8138146. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290109 — a six-check JSON result.
Prélude à l'après-midi d'un faune, L. 86: Prelude a l'apres-midi d'un faune
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5767347437a363783fc80c221b0ba7760976ebd574eed2341bab823262e1daeb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199607901 — a six-check JSON result.
Opera Without Words - The Most Famous Overtures, Preludes, and Interludes in Opera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ecb2c29fa73e3bbe95b5c2ff4969858475d9e835760992b58c6efe79dd6b32. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199927406 — a six-check JSON result.
Manon Lescaut: Act I: Vedete? lo'son 'fedele
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa5ebcb5aa6e6a16be786f09047db911543953c019813c9ba75264ef32cca52. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290110 — a six-check JSON result.