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 0xc29463bdfffd2817c1e9750ee5936930850e47c7cff1c3b1c801af21eb2530ee. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74315b54-5809-4fd1-90a3-5292f28c4ff6.json and https://artists.proofprofile.net/proofs/artist/74315b54-5809-4fd1-90a3-5292f28c4ff6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Беременность Музыка: Лучшая Классическая музыка фортепиано для будущего ребенка
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 0x001b63b7547438530f7a68797569031234695c072dd39fd77549d3697d4ea6f6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBG3H1300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34dcd7f50a31bde48fd0f0903b617194f5e3857735a57c166fe1f3fa7024a1ad. 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/GBG3H1300002.
Овцы могут безопасно пасти' Cantata, BWV 208
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda6e79daebebfdb92c5fa502c9cd0149417a6b515557b5a899f6efccca5d8da. 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/GBG3H1300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7ae1b0f6e37afe364b7aceefd9d6051bf48eba6f8cc071e3b89e4519b70eec. 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/GBG3H1200465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6188daffdf58dd6b2fbfc781b201e51f472a790a88fcdce209e65af2eba17020. 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/GBG3H1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03324040b6d376f285bd4998140fa6e7067049379cee531975297f2ef55c50b. 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/GBG3H1200908.
Соната для фортепиано No. 14 in C-Sharp Minor, Moonlight: I. - Adagio sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763a4e9a8a31ea85d256d7fe1362ef2b2ddbfdd0d97575b18d380fdb9c609360. 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/GBG3H1100884.
Сцены из детства, Op. 15: No. 12 'Ребенка засыпанием'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13f121e017f55f8bb38ca870a76ac9fde7eaeb22ed5d166b92b40d64fd5e328. 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/GBG3H1300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9750dfdc0f98351b15bf6ae3e57ead7497ead790c63ff9eb4cb3e6268ba15c6d. 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/GBG3H1300010.
Песни без слов Book 5 in B-Flat Major, Op. 63: II Allegro con fuoco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc608f41cf5282bc663c19db36e3fbadefa2156bf3e26805e1b6683959c9da897. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBG3H1300011.
Сцены из детства, Op. 15: No. 7, Träumerei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7606e23da0b2751409810bf9851ce06ca31b9f3f8c1dfd06465d581bec5298a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBG3H1300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc5aaac400ec98dba88097eb741127315375101cf985e532cc9e3697f95a4a8. 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/GBG3H1300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fda2f047b0a5422444249999c7be37a706bcd5a5693718b8453188bb7da53b6. 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/GBG3H1300014.
Щелкунчик, Act II, Pas de Deux XIV. Variation II: "Dance of the Sugar Plum Fairy" - "Andante ma non troppo" - "Presto"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7c3c89b189447146d29ada5dd950a15cf5de16dfd344b90791a77d614cf3c5. 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/GBG3H1300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342f121908fce4519ee7142bc747cb4bc20723e541a10e280fb42f56e4679c33. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBG3H1300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff32dc3bb60024400bafda0e005685a01f67d0c68a87ad2a0b6579954e5f90ea. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBG3H1300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3435fd228e9a3a6e43ebd73b3106a8112db6b7efbd03658ace153a1d5ec27458. 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/GBG3H1300019.
Bagatelle No. 25 in A Minor, WoO 59 "Für Elise"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee51a883835f53f9469afa49e3287005b82f878f8e5de1b148fbd4644ddb840. 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/GBG3H1100885.