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 0x5ad0a456e2cd5ddec10654fa44048bb3e2a6ca3c96d1ea8a7f8e334455d45c59. 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/cedb1eac-22c3-432b-a4c4-e15ee24edd6e.json and https://artists.proofprofile.net/proofs/artist/cedb1eac-22c3-432b-a4c4-e15ee24edd6e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gretas B&B (Original Motion Picture 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 0x11948b9b9201a59008eabad56539f9ccd62f35e1e94b8fd9824ffee918e010fd. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/USDY42034938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353d7ce5603d5c5144c2005b2a97b66456742159404bf334a67423996c37dd45. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:11:25Z), 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/USDY42034940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853e59d3f45ac00b41ebb19b9610481c44844c17bc93e390d0b8cab0194bce26. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USDY42034941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c0b37715cb4f07589cb1917d421f6c7d677a1d4a495386bba45e1971eafe03. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USDY42034942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b4146fce244810c7663b76ceb573b82e94b880eac41031095575211e118b1a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USDY42034943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1295af3aa0e26cbe161a4ac9dd071f1b241c7b90e2d879fb0f19df7e202b86a7. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/USHM82221212.
Ballet Music for Little Kids: Dancing in the Clouds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9e9971be20885224e6ac78ec89bf8c81799ca77d774ed1a2d74bf66da973ad. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM92262924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0107a2f4284dbc09b020c3531bc24a4501800d01238e4fdaeb85a9b3aaa6d8e7. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:39:54Z), 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/USHM92262926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6328a21af26316b39ffb38ed3fdf04753d30c8a8edab625e81629a8b1fc9c5e. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/USHM92262928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd55bd0f3b71d9db85369ddd22c11b75aa2fe836c6a1efe90292afd4b5599504. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USHM92262930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6263ab6e3b8a62fa59f29d1f306e546cdf4bf120671a2b9782f3d13b011882d. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/USHM92262931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1e39e4ac61bf5b7024913c09f0203ac16e5ad1db1de9079a9eab8e5adeafbb. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USHM92262932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba819fd1f40ddb19ba56c86aa8accbf4c449216a4f3e37e190322ee27e7c1124. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USHM92262934.
Ballet Music for Little Kids: Animals of the Forest
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132cc9fe3f5a29d26babef285d0aef818ff2127e93af45e86a94814b7c729ea8. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:25:10Z), 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/USHM22358210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1059da5c1d87213f150c0240069781fdef9c1fcaf6514d019eb7321893c65eaa. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/USHM22358211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16249869903febf57f6fc7543e4931b571d6bbba86de979e0f067fcddbe82b00. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USHM22358213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e00337d7e71888409f267435d325c16aed43d78de9332758d55a9766854beb. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:43:02Z), 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/USHM22358214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a9873774e8a956b0a154a0d1c805f774a456d5618de687ad160ec097421d43. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USHM22358215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed922a61e0d497e1dbe9886ada04b80ebf138d8d8ec778aaeff2af234f84e8c7. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USHM22358216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1884039c96463835560ad6cf8ab5db3e643e152091ad7c60abe1832c057090fd. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:01:25Z), 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/USHM22358217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc262c8b1dba52f167847362c4bc7cdaf03135ca3f882eff1174c77e641222f8. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/USHM22358218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd96915cb417578d591d94e14bb0dccfdd225d6d5276e63188315c62fc67f9ad. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-22T00:32:43Z), 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/USHM22358220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf245bb6c39a8a88241c32049a68987218eeb74c9a6021441e5b51bba47033e5e. 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/USHM22358221.
Ballet Stretch Music That Makes My Baby Sleep
Music for Ballet Class, Vol. 6 (Vintage Upright Piano Edition)