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 0xeac9e60b6db1d80b4e714f5bbd7880199d947b492357915a03202f3b68e25508. 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/3f8ffcef-18dd-474d-9bac-6aef7497d338.json and https://artists.proofprofile.net/proofs/artist/3f8ffcef-18dd-474d-9bac-6aef7497d338.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Musica Para Leer y Estudiar (musica de piano relajante , musica para concentrarse)
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 0xb796c4ab6c18ba4db261f7e4c0b79ef3fc9c324e16c3cf3ff3456a0976209550. Chain 2 (Bitcoin): anchored in block 957579 (2026-07-11T14:35:38Z), 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/ITS781701350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b5b0899e4a165b60dcdac409eb47d112c2374e1285875bbfa610d98426814b. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/ITS781901032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70253c71c5c8f17d071a4641ee7856cb549b097aa3d5047ef5c45b26ee939a67. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ITS781800244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8a4198525b9a1ab8dfc0f0accab906da1d78c72f11a5d05a371eb014e420db. 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/ITS781800708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf60872bd49f75280145bc7e5642ca4cd340fe48b625a5ddd8435f4dc01e8f2. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/ITS782200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fde292e870d0c4381b5bd833272f91d55478efc6128baf0cb4bc20ec86e8bd. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ITS782400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5913c42500ece7c14930998071b4beb09b18773c86a705ffb0397d11430de16. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/ITS782500186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0573e7229ca8bde756715ca2492aff5938caa2bd53fdbf4f9babdc56fa6e0851. 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/ITS782500323.
Sunrise Over Endless Skies (Morning Dew)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1da3300614abbb332a91143f9dc87f8f281ed5337bf91eb66c244f59c2419ff. 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/ITS781800916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679f7b75c9df7e924f6104c40b4643082316489725cfe06abad7b25a72ece620. 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/ITS782000030.
Sleep Peacefully Vol.2 : Contemporary Piano for Sleep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fab81e32c74edc49e09b6858f3df2589f26ab21aa77c6c1c982202ba215c34. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ITS781800618.
Study - Focus - Concentration - Best Music for Brain Power (Intense Studying, Study for Exam, No Stress, Memory, Relaxation, Deep Focus, Music for Maximum Concentration, Music for Office, Hom
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72762b6e31b0ffad27d2cb4c6ddfaf36eafbc3e0961a0a1c631a91d3e1c80227. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/ITS781604599.