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 0x89204f94a14fabb90b6f7a93d8f6adeb66d505366bb205a0450820bfe633ddc6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f617b9c4-32f6-418e-8276-31adcf62d6d8.json and https://artists.proofprofile.net/proofs/artist/f617b9c4-32f6-418e-8276-31adcf62d6d8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Plus Two (Original Motion Picture Soundtrack)
Anbudan (Original Motion Picture Soundtrack)
Beauty (Original Motion Picture Soundtrack)
Lover's Special (Original Motion Picture Soundtrack)
Sounds of Nature with Music: Gregorian Cathedral Gardens with Relaxation Music
Natur mit Musik: gregorianischen Garten mit Entspannungsmusik
Natur med musik: gregorianska trädgård med avslappningsmusik
Natuur met Muziek: gregoriaanse Tuin met Ontspannende Muziek
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 0x2bec0cd8a0c4838c9549d2b030e04d5d3b5032e7c0d7abb9430665f835ac5f4f. 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/QMTND1100065.
Thoranai (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499b7685ea93990d09dd65a60a1743689fc83d99bd3b7ff1da0758689a62c2d6. 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/INS171100412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eac7184d9e3ac91dca557f37c15255070046556de5c0976cc4caef1ca820544. 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/TCAAX1197224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4145b70f30fddeb0c3134c869d7a847d3503ab87e351487b4340723da410c7. 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/TCAAR1052456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868c6b5c6d52e47420f757cad26f6cc9d6651e8dc650b066c20e09766d1d8f8f. 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/USTC60847438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86898fa80cfffc98cf78e72b72fcf9658313e1ee7f2c331a3b093501fca0b42. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/TCACG1594041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374b96510e91cb1531dbfd9422ffe69f0630e561dea6f78501b78963dc588694. 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/TCAFB2098735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374b96510e91cb1531dbfd9422ffe69f0630e561dea6f78501b78963dc588694. 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/TCAFB2098735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1dadb6d65e8ee7ca44197a469fa83b63d61a7c5e01538ff6fd0357dc172bb61. 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/QMTND1100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4986d081e52c281e7982c73eb06e70135ad672c21ab9e0b4e79660bacebc015f. 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/USTCF1017400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e0d9840eb92a95e9bd7c430925eb3975b7e6633c1899ddb61439d5a6f3c660. 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/TCACL1686135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd968b17d676b8ea41627e28eb28c6bf73d6eed1c9610575faa7aaaa955fafb5a. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USFVJ0900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140953f97d242364557651d8485d7487ec749cb029e0ca4243474f2ef918c474. 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/GB4XJ1100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358ec22019899bba7c17dc7d90051f8014ab1ed3e3616354013f995d6014d6d0. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/AUZBZ2000016.
41 Superhit Non-Stop Lokgeete Koligeete DJ Remix, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a1dbea913d5684f76e9fa8bd2ef7018dbc3d7c9e66f1015ca08a2d8135b601. 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/INW130904725.