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 0x456cd26acb382714b1e20243843394825344f909bc7fba12435d61d3fffb1c8d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62ca1c1d-8336-43b0-b1a4-80a1ca925c6c.json and https://artists.proofprofile.net/proofs/artist/62ca1c1d-8336-43b0-b1a4-80a1ca925c6c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Topsy Turvy - From "The Hunchback Of Notre Dame" / Soundtrack
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 0xf5ccaea169e0e7db1ffbb55e347b39760884695e46dd5e8c48428a9174359ac6. 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/USWD10210161.
Heaven's Light/Hellfire - From "The Hunchback Of Notre Dame"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1648862f069581d6d1097c14631ce197725f7f79e1875a687487616264f9a9c9. 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/USWD10322012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0996ad83299c91d0d906d4bc052088ce97ab2bfa8e68f9349f1a14f867b05914. 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/USWD10322008.
The Hunchback Of Notre Dame Original Soundtrack (French Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed0047e46fc467402ef53ebffa79ac7fa3514bef7b5ab52ec4949386ba93cb1. 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/USWD10322010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f5ff01ecad392ddc6986643edfb1d26f0be90056dad31db3e7ab9a0d0e279f. 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/USWD10322016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28861ff0c3f6ecac97681df91354084b42d75b8883a0fa640063df487a6a264b. 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/USWD10322017.
The Bells of Notre Dame - From "The Hunchback of Notre Dame"/Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0996ad83299c91d0d906d4bc052088ce97ab2bfa8e68f9349f1a14f867b05914. 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/USWD10322008.
Humiliation - From "The Hunchback of Notre Dame"/Score
Der Glöckner von Notre Dame (Deutscher Original Film-Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed0047e46fc467402ef53ebffa79ac7fa3514bef7b5ab52ec4949386ba93cb1. 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/USWD10322010.
Sanctuary! - From "The Hunchback of Notre Dame"/Score
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f5ff01ecad392ddc6986643edfb1d26f0be90056dad31db3e7ab9a0d0e279f. 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/USWD10322016.
And He Shall Smite the Wicked - From "The Hunchback of Notre Dame"/Score
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28861ff0c3f6ecac97681df91354084b42d75b8883a0fa640063df487a6a264b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USWD10322017.