1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd18531f15ab6aff7dbf92fa1444e4f41146280b88909bfd5e2ad4364cda83244. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c83004d-ceaf-4d50-aaae-f1bc76440300.json and https://artists.proofprofile.net/proofs/artist/3c83004d-ceaf-4d50-aaae-f1bc76440300.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Svenska Mästerpianister - Roos / Scheja / Wikström - Piano Music
Scenes from Childhood, Op. 15: Von fremden Ländern und Menschen
24 Préludes, Op. 28: Preludium Dess-dur "Regndroppspreludiet"
4 sånger från "Vårbetraktelser": Min andagt
Ihr Augen worzu nutzt ihr mir: Ihr Augen worzu nutzt ifr mir
3 Fantasies, Op. 11: No. 3, Molto espressivo e con intimissimo sentimento
Är det hela tidsfördrifvet: Äta litet, dricka vatten
Mälarlegender: II. Vivo moderato, maestoso e Poco alla burla
Mälarlegender: III. Andante molto lento, di legenda
Consolations, S. 172 "6 Pensées poétiques": Consolation nr 3
The Seasons, Op. 37a, TH 135: Juni: Barkaroll
3 Fantasies, Op. 11: No. 1. Molto appasionato
3 Fantasies, Op. 11: No. 2. Dolce scherzando
3 Fantasies, Op. 11: No. 3. Molto espressivo e con intimissimo sentimento
Mälarlegender: I. Lenti improvisato, quasi notturno
Mälarlegender: I. Lento improvisato, quasi notturno
Rangström: Miss Julie, Piano Music & Songs
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 → block OTSBitcoinBlock must exist at that height 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 0xfbad5cc782614353061dbe80b7fe44c17150204a5e2686bacc4f55b1ae2ec27a. 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/QM4TW2266719.
Mälarlegender: II. Vivo moderato, maestoso e poco alla Burla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7240c841c09440e4ae093c6045fa6a8bed94a14e922a5e28cefae7d2af04cac. 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/QM4TW2266720.
Mälarlegender: III. Andante molto lento, di Legenda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250438d37b0774c9809084e61d8045cbf2c6bdfe4482ea1d70f43a4afa7cdd8d. 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/QM4TW2266721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4df0dcd0b3935813be02e9b8393aa23bfbd8f050904a88d97297dd711b20169. 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/QM4TW2266722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19fd29b435dfcf2ea1a4198da3b21b93bd36bd7bdeec7767dd22706dc3aaadc. 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/QM4TW2266723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbbbf51c73e4a27e1a54b7b193ae36c861b66f8d3f1e6a94e928e73f8913cae. 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/QM4TW2266724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafee9df19b208abb003177d884f059817ef8ff1de6a445c06cdb630d0ff541a1. 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/QM4TW2266725.
Sensommarnätter, Op 33: I. Tranquillo e soave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9830592373fcd45fd803064b17d882f4e032932bcf54ac3ca04cf24d239191. 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/SEAGA1502602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61262a675dce0ac0149994e3c647838e876f159bffd50c3c0f7765b3c3f8b95f. 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/SEAGA1502603.
Sensommarnätter, Op 33: III. Piano - Non troppo lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66eef4b4cda674dc20bd1cc0caf7e7e0dd1960d0948417e21004da79be01ab52. 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/SEAGA1502604.
Sensommarnätter, Op 33: IV. Presto agitato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf939e5e143ccba4d2866cdd484da77bbbc4b48acfc28611c538a0d65de0797f. 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/SEAGA1502605.
Sensommarnätter, Op 33: V. Poco allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87a3818ef90b29a639ba17166c4b64329ef6137a546b1b77385f06f5270d2c3. 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/SEAGA1502606.
Triakontameron, 30 Moods and Scenes in Triple Measure: No. 11, Alt-Wien, 'Whose yesterdays look backwards with a smile through tears'