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 0xf9c5ae9d709a3acfaaa109f16f5d908cfd66ceb80fe28bd5c8f8ed283f26bcd9. 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/cb5c56ab-cf07-4d6b-b575-32ef3cd5eba5.json and https://artists.proofprofile.net/proofs/artist/cb5c56ab-cf07-4d6b-b575-32ef3cd5eba5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
We Don't Talk About Bruno (From "Encanto")
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 0xe4ada0f0f4c892c18ddb861bc13789adb4ae551055a04b8cab8e3809527bca54. 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/QMRB32200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ea8d5c43fefbb657d6e0d203c9ee09cd146fdebb28fbdee08c8d0569d25af8. 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/QMRB32200054.
You Can Fly! You Can Fly! You Can Fly! (From "Peter Pan")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f68cf3b847cff2a965552ec1fe51f33b52dd9c505517678b42957188e8e93c. 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/QMRB32200055.
When You Wish Upon a Star (From "Pinocchio")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5df8fc019df113d644af4bdf94519b1f1581dc6ebddf8a2140b51a7f1a4eca5. 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/QMRB32200056.
Tarzan Medley (From "Tarzan"): Two Worlds / Son of Man / Strangers Like Me / Trashin' the Camp / You'll Be in My Heart
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65edfa699777e3ec47bb8e239cee074826b3c1ed023cc85aa022479ad9a19f52. 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/QMRB32000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb080c9369a31b1c1e1a44c814fe1d14853c0a31a6935cae3960c15c37ba2a1. 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/QMRB32200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a47991d98433ca3061c0094f2074fb8fe2cb700bad32aa1b60233cdab583ee1. 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/QMRB32200058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d366c678d0a68a23d1fe5658880169a5ec8f57f03cce4f00460f20064fe13a9. 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/QMRB32200059.
Kiss the Girl (From "The Little Mermaid")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37473663729c8e8c387b5e133c3e9c222b3d51267d34ac61708f62c3924aa299. 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/QMRB32200060.
Frozen Medley (From "Frozen"): For the First Time in Forever / Let It Go / Lost in the Woods / Into the Unknown
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d356fa7ae1db45b553ab53869bdca1c2ec512b8262b2ceaa2548625ebb58379. 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/QMRB32200061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d13bc6846e0db5052bc73c7dc95e2fff7db9fb95a1b9b855c8a9f885643fb83. 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/QMRB32200062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fdc4b1804b1a84f75bd5846ce3fe870091d931d0298b24a7f1ba429d1f6f73b. 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/TCAFL2110073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c033fc044ba2b3a5f291f26c3d50f1b74e0ba070c5cfe54bad31dc727f7ee7. 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/USLD91734976.