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 0x4d1570926eed16ae42193f708a76335d705dca8790a2bdfe7006025f9fe6f112. 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/SEBAA1000210.
Piano Concerto, "Belle Epoque": I. Molto vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae0722792946a157edcea2bde156e4f481b5400811853c10e4a03594e9492a9. 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/SEBAA1000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7277cc4305773e2864ccf9c211c66854cd0bfd98da902b0c90eb1d26797380a1. 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/SEBAA1000211.
Piano Concerto, "Belle Epoque": II. Calmo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd3a76ce6b76dcbb1391257cf8a53e298953365a0b67217a9d121c6e257a7bb. 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/SEBAA1000202.
Piano Concerto, "Belle Epoque": III. Deciso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e2acbad49432c11d5c3f95b8f3007954a2744df17edd169585d0640a216caf. 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/SEBAA1000203.
Kaleidoscope: I. Reflexion - Fauxbourdon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9e4609024a6759c259a11c09d859f9443dd69f9c4215a351d8be9311cca673. 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/SEBAA1000204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da2155ec5a0d64cea36464111d198a5ac1895829b7725be0b321934bc85e990. 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/SEBAA1000205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055aafb3e9634f725088b797a4a5095954d7afbaa4d38f398d9b9be1d7955472. 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/SEBAA1000206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb9f4e267b58668b5a2d8030fd62c62f698e1bf333539529a6d7ea95a4b3a74. 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/SEBAA1000207.
Violin Concerto: II. Molto tranquillo e dolce
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322833e95583ebc02ce313b73ac0b0c1714fd691a3d97f449063f49155426f1a. 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/SEBAA1000208.
Violin Concerto: III. Molto allegro e rigoroso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7c6b280cf593a5aeeb21220b9fc03d9f2dd8088cbf62736903fb14584e944b. 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/SEBAA1000209.
Piano Concerto Belle Epoque: I. Molto vivo
Piano Concerto Belle Epoque: III. Deciso
Tobias Broström: Samsara - Double Concerto, Dreamscape & Cello Concerto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd86f83a4aff2c5d32738a2b858d158b567425c8f95d04e8958ec5438e86b3e7. 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/SEBAA1900801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0008cfa2a08ed653d29476a79dbf3f5e0ee5ae7850b6ee1a4c23b426dd364e. 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/SEBAA1900802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf39df3c572c9b6b7d7556cfc67371c0c6ec0e3196ded930351ae25d65618926. 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/SEBAA1900803.