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 0x03580c55bd554d1669e9702efa56a2cc1ef21d928adc7c575392c33076816b5c. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4aa7428f-40cc-4a2c-8e0b-34d8a5706c95.json and https://artists.proofprofile.net/proofs/artist/4aa7428f-40cc-4a2c-8e0b-34d8a5706c95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lullaby Renditions of The Nutcracker Suite
Lullaby Renditions of The Legend of Zelda
Great Fairy's Fountain (From "The Legend of Zelda: Octarina of Time")
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 0xdb6b49afd91ad5b005943f6cb28b9e70c0e0e521847f9d5a428229ed41712933. 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/QZPJ32264294.
Lullaby Renditions of Christmas Classics
Lullaby Renditions of Halloween Movie Themes
Lullaby Renditions of The Nightmare Before Christmas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdf4726efa46eca6ec287bc02f62ea283292c2eb8b2260e5d8d098c86c56ed0. 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/QZPJ32200204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ccd82432ea0d572b0323fbe14c640c3bf7cd7cb23aa19c68cfda9def5ed8a49. 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/QZPJ32200205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638bacca4279837fbc6bb52c9d49cd2f43e883358b44766dfeee8167a101e740. 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/QZPJ32200206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbe75e56a66bc3a1ccc42c277580fe89d49eb7e96a9c2cdd94a98440e4222b3. 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/QZPJ32200207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936e38792870c109cd181abe9f4038d6a66b119a5944c12847367464fda0fcef. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZPJ32200208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6454ffdfd7f12bb4dce09cff3379a43eab17da83bdec84cd34c1d17ff06ca0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZPJ32200209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc781541e218eb333fbd828f86f2a6c44a88c66747e2008e25c5674d8cc4bc565. 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/QZPJ32200211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f860ab0cfe8a30b4f68a120f0c25966eb8025e3afb8bd6d8cdbc088feffc847. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZPJ32200212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28418d005fc806fb99d11945c8d107b6154027588f71c1a14565d109da6c7ca. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:44:09Z), 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/QZPJ32200210.
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 0xb8abeb899c3ecec6051f31e69c8f8d12bcbb4f9674edb8f9b58c8f32119cc346. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZPJ32200202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9c45595176b1d55dbfc3b901b8bed3d3635cd8c003c9938bc55d23ebf8dc17. 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/QZPJ32200203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fde2af997b4414dc1b1a5426759cb081f3f729a4708d3acf2ddfc4f0aad6d2. 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/QZPJ32187480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8441a7a07726238815c0d91c2a637a92cc9dc26fae138316f7863d019626610. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZPJ32187478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db93e941019171c55876c069f93e2fc1515e0cc850c41b5a7b262bc38e662f7. 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/USHM22295521.