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 0xd73461b0c5ed56ad4558df7ca908b463882ead401cf9de1ad221bee0de473790. 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/e0246312-8f24-4fe2-8d78-3f03ef53e75b.json and https://artists.proofprofile.net/proofs/artist/e0246312-8f24-4fe2-8d78-3f03ef53e75b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ballet Music: Music for Classical Dance and Ballet Class Etudes
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 0x1077fa6f385e2c5e348e0dede456f4539672a64753351202e2d08d91ee8c9f86. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/USTCG1031687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8b60668c551b0a144505d103074e4ce44917071a7304a50f7cc1eb53d235d0. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:41:07Z), 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/USTCG1031689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9943b8d5be03b5158f2686e91a5e9bb587da82ee7193f918c63aeeba4d671b5e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USTCG1031693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38deb86c49a2f0c28df8a029c8dcf1dbc7a0cf848f47137367a19162a385da5d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USTCG1031699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9895d408bca23e0d4076ee921a0717ee68cc0ca08fa8ddaa9c1ee2c5914fac07. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USTCG1031702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649bcc637c81f800b3346cce8a354a6c7c904209b8f0b677e1d0f64330fda59b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USTCG1031708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe630b24513ff26a3231b84a134c7fb5a71f98dfb363f8b57a7b1cea2d3fab87. 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/USTCG1031710.
Tendu - Clair De Lune for Romantic Ballet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7fc0e66d3e52d7d023b8f52973df15f5204771c1ba2804404f6ad8fc8b7fc0. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USTCG1094204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a4b49a38ac07a5598abe0914b61022e74dc612231c96a55e7da90219b73d2f. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USTCG1094206.
Romantic Ballet - Johanbn Sebastian Bach - Ave Maria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd834ce20fd61cee2213e264745d649b2f8292bb882056d21f66aef3e7c68e243. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:56:05Z), 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/USTCG1094208.
Balances - Lavenders Blue - Ballet Classic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc6d4c5fa72653927a6dc49c96609a0e97c444ec9eebd11d71b02cc22eda368. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USTCG1094317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96748e9dfa2b7571a0f91bd4c577dd0b5745b484522806b664bf3f6ebd8da4a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USTCG1094318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00381c61bd5bb5b1aa954d821432f4387c7f248009f14a3c2326f8a3b9c4b7fa. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USTCG1094212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc127b01de7c83b84c690b9d5ada622a68bd03a742fe9667057217fc152e51e9a. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:44:13Z), 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/USTCG1094214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d3ed1041e15c6202f5cacb0dec9f4521cff57a640050b3ce5e5218fa22b62b. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:56:39Z), 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/USTCG1094205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed8d69939322f5b844b8d4cd36640bf16aa0c6dfd8fcc23ee6d12ee49a0dcf1. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USTCG1094219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06ca522f0ec650e5756de58947af6ed43cd7e8126c221ed212714440de754b0. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:05:48Z), 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/USTCG1094220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b52f695fdb1a7554fd435b4ede4f65d3dbe6dc75bf5ae47a197616cd07e336c. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USTCG1094225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6be063955a01549204e61cd899c3e9be177a4ff28b8147f265195c092336547. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USTCG1094322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceafab698454aedd219d6a10086fe0d1581172b70ddd83ccfc36e1014dcf95ce. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USTCG1094325.