The Estonian National Symphony Orchestra ( []) (formerly known as the Symphony Orchestra of the Estonian Radio Committee, Estonian Radio Symphony Orchestra, and the Estonian SSR State Symphony Orche
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 0x6112e27f396a668ef747378e46a9b5592e73d123e0d278b79b53652aec5e46b2. 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/2f92a225-fd7e-48f8-8f58-ffbd9e5f1c5b.json and https://artists.proofprofile.net/proofs/artist/2f92a225-fd7e-48f8-8f58-ffbd9e5f1c5b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Neeme Järvi in concert: Mozart, Wagner, Brahms & Reger
Pärt: Fratres (1991 Version for String Orchestra and Percussion)
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 0xc902072c8e6e913c2b9c3614fabefcaf1b5a3373039467731cd66a51e1154d14. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3080f8af807f20571f2170d4d5f6b69efc7b7866d82a003254a1957a1a082eb8. 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/GBAYC0003350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88878a52a6ebd3424eb87af88b2ed187383e7a2433b7852ae8ba801db0f2f177. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD9300290.
In Principio: II. Fuit Homo Missus A Deo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08919ca6282507c3a5554b71671be38636e98beff89cab4f56493611db100187. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB330805002.
In Principio: IV. Quotquot Autem Acceperunt Sum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f17706776e01d3c9c1f0f43c9c994ae11435f819e3cf12ef8e39204a48545e3. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/DEB330805004.
In Principio: V. Et Verbum Caro Factum Est
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e0a1ee10b82403f9052efb867eb560d16c454553171b8f5c01df18b69cf0b6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB330805005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb13d5b2cac6aa37efbfd6bf5ab64ee8d6ad99e1c8e38df659436721f77b4ca. 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/DEB330805006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb9263ba9f81f18d277da2f6107faa8188f805cd93735ef72c9903c2bc70322. 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/DEB330805008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddd8de384b8cf126f83291acb9d9b6969057edcada4f0260fc5873113e5d5b4. 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/DEB330805009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fb7ac57c1df1376bb9752dd912239274b499b3f0f8576ff50ffb2f83be6982. 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/DEB330805010.
In Principio: I. In Principio Erat Verbum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234148aa608c8c16c69d75ad674e26bdb11ca2a3f4efb428c21e5fb827e2eb4b. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB330805001.
Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482 - Strauss: Le bourgeois gentilhomme, Op. 60, TrV 228c (Live)
Pärt: Cantus in memoriam Benjamin Britten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef349a22d077def251a19cb8139fe299fcbfc8c0d819ffcd73c725e05831958. 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/GBAYC0003352.
Sibelius: Pelléas et Mélisande, Op. 46: III. At the Seashore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695ad6d62e139f41e4624b1b7db54c5b373fcf22bd43b000a65bbbd6190b5f63. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0102413.
Peer Gynt, Op. 23. Act III: No. 14, The Death of Åse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe274606963899ce72b9737d3ece2be6454d30290d39cba203688ff94b19a9c08. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0402238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc902072c8e6e913c2b9c3614fabefcaf1b5a3373039467731cd66a51e1154d14. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBAYC0003349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef349a22d077def251a19cb8139fe299fcbfc8c0d819ffcd73c725e05831958. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/GBAYC0003352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd114db3d4802a04a9d9ac992e77485ed20b92719e2a6f2e51d34d4b14396dd. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIABA0600011.