Ensemble 96 is a Norwegian chamber choir located in Oslo. The choir works mainly with contemporary music and is partly funded by government grants. It has released several CDs, and given concerts and
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 0xaed12f9307acef7590fd91724f796fa36b1b351356900ef0372f50983e7d3d7b. Chain 2 (Bitcoin): anchored in block 953933 (2026-06-16T11:13:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/201a40af-4a2c-4b0a-a393-76f52ddd9607.json and https://artists.proofprofile.net/proofs/artist/201a40af-4a2c-4b0a-a393-76f52ddd9607.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 0x98d7aa64c9e555307b851d27e2d780d2cf4008fed7f6e60b13f7eba98469ea65. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/NOMPP1014010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc1d914368365d1d72a2e4cfb854ac67611ca3aa3d16daba4502a0fc6312346. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOMPP1014030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1046ebc76a572e4d208284d082bdfab653afcaf630a05935794b1643bc1bc0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOMPP1014040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03189d68ba88da454ae4c221a3e2cd00f4ad044e01473c3b3309f51bfe633b0. 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/NOMPP1014070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70ba205519148ff9e4b050142750504d9c64b6ed4863085f0598edcfb3eea28. 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/NOMPP1014110.
Violin Concerto No. 4 In D Major Kv 218: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37a3ec9a0757ebcb1c213a39a2afb34ffef43dc1d0d20082caf2e9c38327d2b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NOMPP0606010.
Sonate In D-Dur Für Zwei Klaviere Kv 448: I. Allegro con spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f1ff34b8f2aa1f82f3baee9e0ba528eb1aafecabba574a59730b5c9c2dcbf2. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NOMPP0809010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd73fa119b99e9e2f444429b5546119832c430d94de60b6cb273af98dc6becf. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/NOMPP0702010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5d20f715f511d961739ab6c57c287bfb67140bd7e344f5296882bb2ef4f0bc. 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/NOMPP0701200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47815749efc738f8d27eea8a624ccdd8a9f18008c7be52e7dc4f5d1a1c02720b. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/NOMPP0604100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49aa9986d8f326c3ee9ca18cb82c5b68158a7f813594325a4772ec48dc1c0011. 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/NOMPP0708140.
Recitative And Aria From Cantata Rv 679, Che Giova Il Sospirar, Povero Core
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb239e643cc737a1ae018fd499aaca0478f3e9d92960498de1161300ce0551b1. 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/NOMPP0808010.
String Quartet In D, Op. 76, No. 5 - Finale - Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde726fa4154dfaddab6c78ffbd460ae3b0df681f8df1b3543b30d9e55cea354a. 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/NOMPP0805040.
80 Pieces of Classical Music for Inner Peace and Meditation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250fccbddfa9ea94ca05ad0e822c955d173689e9cad7befe4ce32365cad14144. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/NOMPP2303010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2373ff92efd6b9e44b0593726c85f68e7ddd10c1e8422c084184e510b698ae. 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/NOMPP1708050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c26b3e5fefe57ed999bfab792894ccd66c29ca3b3c7fb6d185bc3abcbbe819. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NOMPP1708060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f877550c9aca2f2cae45c07180921f1c1eeadc72fd46a595b4790bb56645f20. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NOMPP1708090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2beaa482482befed753245a76689002da3646ce904d21f8db9be6b64064747. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/NOMPP0504010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffb230f11021513726833f275a2dbcc8e41ad1110a55410bb21a881e05764a4. 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/NOMPP0504020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44be479578a3c86dd0a485649dc152f6acfbe42bdb7a62c1dea354d7dfcd3c9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NOMPP0504030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1765c5c56ea002d25e8700434022a3e270d28712448362a3825b8355ad7a79f. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/NOMPP0504040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7e57b6686bbbf8ed30e2c626d4a2c0e2b93f7f305733f4e621209cac7126e8. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NOMPP0504050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea6c8eaf2de0c23a65ec977514895d37a5ebe208ff0b14adacb09a4557859f6. 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/NOMPP0504060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602b78dde7f4592049ae863651313603fedd367750637e1bd4e6e66cdb1d5928. 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/NOMPP0504200.
The Lapse of Time, an Oratorio on Charles Darwin: On the Origin of Species
Part II: Struggle for Life - The Lapse of Time, an oratorio on Darwin: On the Origin of Species
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab364e85b8130a1f9e7a96f5d8133ee09fe646b4a75de95286792cd733675a04. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/NOFZS2294020.
Part III: Change - The Lapse of Time, an oratorio on Darwin: On the Origin of Species
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9b666227e3587c75154c7e3d57800783feca005b2090582df627199d256898. 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/NOFZS2294040.
Interlude 2: Bones! - The Lapse of Time, an oratorio on Darwin: On the Origin of Species
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d80bedb40b17486a8ae042afe9ad987f48e409e16e0e14378ef18339faac9f1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NOFZS2294060.
HOPE - A new Ceremony of Carols (Selections)