Edgar Meyer (born November 24, 1960) is an American bassist and composer. His styles include classical, bluegrass, newgrass, and jazz. He has won seven Grammy Awards and been nominated ten times. Mey
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 0x0a7ab94f605e82755015e1c8dfcb27b02b2df2831fab3bd216986fd25b7400a3. 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/1d7bd54a-869f-4a5c-aa05-143879674ec4.json and https://artists.proofprofile.net/proofs/artist/1d7bd54a-869f-4a5c-aa05-143879674ec4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x333f14a93eb3be2d3cc23184a3111a3715438c6ddde1b2c67513dfdc6f893cab. 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/USSM11105053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1281ae733eccd0c3a1e96a898d60a51eb8dd1bc8bb4b752af3388dd52a00ff. 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/USSM11105054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89f2ce241ef502ffd65548b1b0e09c69ebb797935e8ee25cb2705324c52717a. 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/USSM11105055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6ceed5ef9e9bf59e9b3676198442e964e068092aa0fe7fc38c0be5041ca60a. 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/USSM11105056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27852a0892e825bfb3f0fb0425cd6f926c4b200937495232031ab0ebf51bf21e. 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/USSM11105057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7031a76b433fb709c3ff07b4f48f342279aeed13ff0834b700da73e2eb5f4bd3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11105058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45bb32902bfa215be67f9110ef4b30c7d861dfea2015927668cc7e0563c0414. 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/USSM11105059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5044db089dd090cfa87c956cfe3e071813da2a97d89b2ff2b791a8caca292f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11105060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf85a9cc5c9373f302ec6e3eab0f58c1a29cf008ecb058225c50afab7b8eefc. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11105061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117de50110fad26568885c7ee7cde8bb51d2d9b2dc8921a3bf00881d33202b2c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11105062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37b6a5dfe5fa7126d9b807bbc8840d4d3affe9002a5de042d8a751be5dc0a5f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11105063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a3a489a60a7217820302e38bd0f61245788032b6812cd031173054a5061a99. 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/USSM11105064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373328df87fb3ae36b9bc1e30e051afd4cfa48907aa548991e13d249cb52c0c9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11105065.
Gamba Sonata No. 1, Movement 4, BWV 1027 - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85b98d93ff61bcf6fa8a3c0e9f4557d5891f20a86cf4128eb5556dee5864727. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USSM11107168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc126d564a9a666a0423c15556b53a0aa08f9d72847980ad13a93dee2f3c8c80e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11107169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f151b76e8a33591fe39dbc437528833ac76334452c2998b49a4758cfdde7e9a. 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/USSM11107170.
Piano Quintet in A Major, D. 667, Op. 114 "Trout": I. Allegro vivace
Schubert: Trout Quintet & Arpeggione Sonata & Die Forelle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc4df1e1a224a245ff7be3bf59367f6e9f7c1a80b81d3ffc75d9479ce17ba16. 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/USSM19504224.
Piano Quintet in A Major, D. 667, Op. 114 "Trout": II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8ddf6e2f4e7e551d5f6455afbbb1b2839a0c52c8f9d8e22798c84d07ee72af. 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/USSM19504225.
Piano Quintet in A Major, D. 667, Op. 114 "Trout": III. Scherzo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22380606089b0ca7c332a1f4569eecf75e981e2a7813bf6cf97525b70aa42813. 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/USSM19504226.
Piano Quintet in A Major, D. 667, Op. 114 "Trout": IV. Tema con variazioni
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a87fe6e3dcb13e3a98bc38a2ff6c542690938c0c63b7cf09cb1366decb30e6. 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/USSM19504227.
Piano Quintet in A Major, D. 667, Op. 114 "Trout": V. Finale. Allegro giusto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24efa643d304d2710ca80cef4e034b58a9f11f695b13a8f9687061b746d8ab3c. 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/USSM19504228.
Quintett für Streichquartett und Kontrabass: Movement I
Meyer: Quintet . Rorem: Quartet No.4 - Emerson String Quartet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2cb96b381ae2be5689ee68cf1bd6fa61cd3bf6b85155b90cafff94c85d5cc1e. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/DEF059605641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82494eabe701622f08ff0bff1945e008bae418036b8ca435975ccc5621ec720f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX92000291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfb5ed53d18e2f65bb4eab22c51929893fbf65d185011fdc324e5ed2279cedc. 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/USQX92000292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddb6325130fa39c73ac7c49d8d5e40dbdb96ed2e9e4e7175935d3afa7097d72. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX92000293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5675460ce2f8483579f29acb735ab75c7f093ae418cc70d0850e4faec814074b. 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/USQX92000294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15edc635437d582c8cda2b6fe266478d06abf04f2e2389d9cab38ab28991bb9c. 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/USQX92000295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861d7987e9c2db8b76e7c86fc1cd481512b99b42d35223087472af8fd58153a2. 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/USQX92000297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e92ce95f53ce7dc66130dffc4f1d947396b9a83240b18bf9043c27a1ed4c34f. 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/USQX92000296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa9e0798f8ab0680022c8050e9ba489976efe91ef3d9f0a7125a8b63e7a281b. 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/USQX92000298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac12fe2a56696d232118b4b8f68cdda34172d796b22305da3649f5007166e793. 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/USQX92000299.