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 0x8b661ca91460687dd3109ee210c280a0280ac1a92c60cb368f8cb9da839f63c0. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93c726ff-f0f8-41f6-a962-45bf989bd73a.json and https://artists.proofprofile.net/proofs/artist/93c726ff-f0f8-41f6-a962-45bf989bd73a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shostakovich: Violin Sonata / Stravinsky: Dithyramb / Schnittke: Violin Sonata No. 1
Frosoblomster (Froso-Flowers), Book 1, Op. 16 (arr. for violin and guitar): Lawn Tennis, ur Frösöblomster
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 0xd39b0cc575e2360dad7ab82f3913163f7d1cd1f9b15d059bdd404275debfa217. 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/SEVOZ1151301.
Frosoblomster (Froso-Flowers), Book 1, Op. 16 (arr. for violin and guitar): Om många år, ur Frösöblomster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb15a4b8117495bb418135fac915ab321d7fe3bc2d31ef6dcfd151402ef808e. 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/SEVOZ1151302.
Frosoblomster (Froso-Flowers), Book 1, Op. 16 (arr. for violin and guitar): Intåg i sommarhagen, ur Frösöblomster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7b2a4c0f679e62358834f2f2e26dcb9474e818228ae772fc02cfbc9dc0fd79. 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/SEVOZ1151303.
Frosoblomster (Froso-Flowers), Book 1, Op. 16 (arr. for violin and guitar): Till rosorna ,ur Frösöblomster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4002bcaccbfddf929b8a3bac9b209732b64e9e613fa30df1c265dbcd5420d03d. 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/SEVOZ1151304.
Frosoblomster (Froso-Flowers), Book 1, Op. 16 (arr. for violin and guitar): Gratulation, ur Frösöblomster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef2ab86cdda18cf54920e3095343fdb2b890f2fa51f5e21164d1d9c5a824323. 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/SEVOZ1151305.
Moderen (The Mother), Op. 41, FS 94: Taagen letter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8a91d113d05f493d7bbd66b2664c5544657087741367d30f5fe9fb2cf70667. 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/SEVOZ1151306.
6 Humoresque-Bagatelles, Op. 11, FS 22: Goddag! Goddag!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928b13a4683c69b229294f6f15d5f67a05ee0cfd0bd8476671c8efe6fac1efd0. 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/SEVOZ1151307.
6 Humoresque-Bagatelles, Op. 11, FS 22: Snurretoppen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa950c1417421d25e8a73d6ba9e245851dd1b6d2ec83acb3918cab326dfd25dd4. 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/SEVOZ1151308.
6 Humoresque-Bagatelles, Op. 11, FS 22: En lille långsom vals
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb15eb9d82cf683d9a7e1ccca73d4bc0c2b6ba211f3b6e767bd16252f8afa938. 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/SEVOZ1151309.
6 Humoresque-Bagatelles, Op. 11, FS 22: Spraellemanden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ce3f3502ea22fc7bc82adb85500f1c1fdcc0e4e995f6be0594572bb5e14811. 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/SEVOZ1151310.
6 Humoresque-Bagatelles, Op. 11, FS 22: V. Dukke-Marsch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa8811e7b509103b05bc3eb572a67bffb13e8616aa5eb758c3e75c1e28d08d5. 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/SEVOZ1151311.
6 Humoresque-Bagatelles, Op. 11, FS 22: VI. Spillevaerket
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a9b30ba7f799457b65f202625efce82331ebc1a880d34898701048975476a7. 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/SEVOZ1151312.
Piano Sonata in G Minor: Sonata in G Minor: II. Romanza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72909978806b86d2ce1d9979b2674debc31d1de2bd206da131279c087005f3eb. 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/SEVOZ1151313.
10 Pensees lyriques, Op. 40: I. Valsette
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb156767cc227197e3f410f0273a51ae13903107bb78d29dc997f9e463acffbbf. 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/SEVOZ1151314.
10 Pensees lyriques, Op. 40: II. Chant sans paroles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1eb7c6c04a38c220249f7e3d5eaf23db493b560e6f395496f91d5d34ca6eeaa. 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/SEVOZ1151315.
10 Pensees lyriques, Op. 40: III. Homoresque
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3edb90f77f0e63e52de036f585da1b1e8ee2ec06461d0523db71c12eaa3947. 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/SEVOZ1151316.
10 Pensees lyriques, Op. 40: IV. Minuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf12a7c908c29917225d3a919be0eaf623b65034dcae9b763cd1deb79dacc9c3. 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/SEVOZ1151317.
10 Pensees lyriques, Op. 40: V. Berceuse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f167b2e30c6ff0c4d556a5085a32a8cf12c27e81c53691fd9040714f039325. 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/SEVOZ1151318.
10 Pensees lyriques, Op. 40: VI. Pensee melodique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45eb00451ef3f14d466ce38874a7755e3ec8ba10f578adc9bec29a05cbee3dbf. 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/SEVOZ1151319.
10 Pensees lyriques, Op. 40: VII. Rondoletto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7d6021cb6bc7626021d9b5036fa401f1ccab534f2be0fc0ee67dec82e1570b. 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/SEVOZ1151320.
10 Pensees lyriques, Op. 40: VIII. Scherzando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33dcf8dd2655b74932eae9d478baefefdaa9b09e8d372c56cb0a1c288debe2af. 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/SEVOZ1151321.
12 Melodies, Op. 33: No. 2. Varen (Last Spring) (arr. for guitar and violin): Våren
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464aae71980d4fa04ffe7c6b5c0cc0ba79a0ce397328817c7ca8e599376402c4. 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/SEVOZ1151322.
8 Vortragsstucke, Op. 55 (arr. for flute and guitar): I. Notturno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9feac8c38705f728036fb4c59f1980b7eab3330b183a4300f77eb7a641bb9a. 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/SEVOZ1151323.
8 Vortragsstucke, Op. 55 (arr. for flute and guitar): II. Scherzino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6a300ae6fda79900d1516f7eb38d7db08065a34897b079f8d8b2df22b1f70c. 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/SEVOZ1151324.
8 Vortragsstucke, Op. 55 (arr. for flute and guitar): III. Albumblatt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba49e51722e9fd6310cb867d90573e871e292cc0559293e5ff8f25216a48350a. 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/SEVOZ1151325.
8 Vortragsstucke, Op. 55 (arr. for flute and guitar): IV. Walzer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff9ec014c8e1f9d5b6e6d599d9e38a6621c0f36c2a206012653bdeff59e67ed. 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/SEVOZ1151326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b420e2320c4737746dc5c678b087ced9856ab14113f405ec39548b562473ff2. 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/SEVOZ1151327.
Frosoblomster (Froso-Flowers) Book 1 Op. 16: Lawn Tennis ur Frösöblomster [arr. For violin and guitar]
Frosoblomster (Froso-Flowers) Book 1 Op. 16: Om många år ur Frösöblomster [arr. For violin and guitar]
Frosoblomster (Froso-Flowers) Book 1 Op. 16: Intåg i sommarhagen ur Frösöblomster [arr. For violin and guitar]
Frosoblomster (Froso-Flowers) Book 1 Op. 16: Till rosorna ur Frösöblomster [arr. For violin and guitar]
Frosoblomster (Froso-Flowers) Book 1 Op. 16: Gratulation ur Frösöblomster [arr. For violin and guitar]
Moderen (the Mother) Op. 41 FS 94: Taagen letter
6 Humoresque-Bagatelles Op. 11 FS 22: Goddag! Goddag!
6 Humoresque-Bagatelles Op. 11 FS 22: Snurretoppen
6 Humoresque-Bagatelles Op. 11 FS 22: En lille långsom vals
6 Humoresque-Bagatelles Op. 11 FS 22: Spraellemanden
6 Humoresque-Bagatelles Op. 11 FS 22: V. Dukke-Marsch
6 Humoresque-Bagatelles Op. 11 FS 22: VI. Spillevaerket
10 Pensées lyriques Op. 40: I. Valsette
10 Pensées lyriques Op. 40: II. Chant sans paroles
10 Pensées lyriques Op. 40: III. Homoresque
10 Pensées lyriques Op. 40: IV. Minuetto
10 Pensées lyriques Op. 40: V. Berceuse
10 Pensées lyriques Op. 40: VI. Pensee melodique
10 Pensées lyriques Op. 40: VII. Rondoletto
10 Pensées lyriques Op. 40: VIII. Scherzando
12 Melodies Op. 33 No. 2. Varen (Last Spring): Våren [arr. For violin and guitar]
8 Vortragsstücke Op. 55: I. Notturno (Arr. For flute and guitar)
8 Vortragsstücke Op. 55: II. Scherzino (Arr. For flute and guitar)
8 Vortragsstücke Op. 55: III. Albumblatt (Arr. For flute and guitar)
8 Vortragsstücke Op. 55: IV. Walzer (Arr. For flute and guitar)