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 0xf5d034917ee11f879d20df235f28ff332845acd21564d722549c5b01c8fab8cd. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/077f527c-5b37-4107-bbba-9a4df7f68648.json and https://artists.proofprofile.net/proofs/artist/077f527c-5b37-4107-bbba-9a4df7f68648.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9196ea292cf26e754086fced90f044189c587aab104354488ccddd3f2a7984. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZP7F2574005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274a13a2c6e2399b8a97e85f59980933ac42cbb5fd2940a911fa7ce685ac2525. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZP7F2574006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3eec4d22ea7d6ffd27e4dc81e5040a28acb15d702bfa89d0e0559c854f533e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZP7F2574007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282781b14eb7bd71bcfb225e17536183697e20540a79d6d26350791179b6dcdc. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZP7F2574008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043155b514460b45cc7afb914ce30fe1af9122b0fbb4d861bb9b7b454b93ff34. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZP7F2574009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd3cc04139b2f36d1f5af6005b84d630896c791e3830e0a66439f336ba95bdc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZP7F2574010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd7563e92c7e91d3f375c5a63adb9e95f3b45530d740c7fcae81ddabfef25a7. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:03:45Z), 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/QZP7F2574011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07181a973e08663ea3485db7eab6d851b45a0f89e094d5ae59ad3a7a569aad8. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:07:29Z), 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/QZP7F2574012.
Classical Music for Focus and Concentration
Symphonic Focus: Classical Music for Study and Concentration
Classical Study Melodies: Elegant Strings and Piano for Calm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8a1c992886b3c7fd8d32f74372b03a2f5f46a30279b1bb825f0de9464ceb71. 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/SEUM72000380.