thumb|upright=1.2|Depiction of a scene from Shakespeare's play Richard III Drama is the specific mode of fiction represented in performance: a play, opera, mime, ballet, etc., performed in a theatre,
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 0x2d1096a634de3ad74ea72a94ab6b00bd387b91ddccecb97eef9b8dbc2f3bb27d. 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/7ed7a89f-6fa4-484f-b31b-a781451db7ee.json and https://artists.proofprofile.net/proofs/artist/7ed7a89f-6fa4-484f-b31b-a781451db7ee.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 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 0x8b969cd21a307c57d805e137693161f4d974f7683d8aa43e4ed34808082e7d7d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USCJE0512106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a58c8d2146cc27726c940a68af2745f156aae670acb9cf231dde3c2c7d6df7f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USAT20108408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfaec2b7c559e37d77c3526cceb9a70eede04aa651af047fdc0b368e0413c757. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USAT20108414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64cefae67a454f37564ba38d71301e7fc1b89d0ab95fbcf47eae66f7afaccfaa. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/USAT20108412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c849c6ce2651c82a74d08dd001fcd092a1a8094eca44c273cf49a2d50e4f930. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/USAT20108410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb285aca6f2dc633d8a18e13d787d16a6419c8c568c9cefdb5554792cbe532303. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/USAT20108400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca9fd89834208789c331129ca6929018ab711a5e9f51d913bef443f291fe544. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USAT20102099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4267191e2dce0dc9106f7f9908265f92b57fff01e533941a13b1f2067c5e83c5. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/TCAHI2392897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddfae8a075905e5a91d7868fb13f0c54166b0a68dcdb77f8edd3ce515694ef2. 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/USAT20108409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a285179654ee20468efb0a7e7e452e6d9069f875bf5a78d805cad0f1d0be19. 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/QMBZ92050087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b143c467d6ea9b355a46f26cfe8c71c233d27cbb6bec2413d67027ddbab818. 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/USAT20000020.
Uncle Drew (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9491af9d69ab515bfc993cffef13479de33f91a137694904a457774090450eb1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USRC11801911.