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 0x248b47f7cba62a5d0f3e88fd4b0676502231db567836d87960a9291586e4eca9. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3bf0086-6b69-4c78-ae86-911cc298c721.json and https://artists.proofprofile.net/proofs/artist/b3bf0086-6b69-4c78-ae86-911cc298c721.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chamber Music (14Th Century) (A Distant Mirror)
A Medieval Tapestry: Instrumental and Vocal Music from the 12th through 14th Centuries
Divisions on an Ayre, Lute Songs and Instrumental Music circa 1600
Playing with Fire: The Art of the Renaissance Instrumentalist
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 0xda34944fa9195432c21a04e9b047b8897d887f5c7b4c5c31d86a4c3dc07d33a5. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USHM20721699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2fdd80f32b2edb786fa2c28da707f459556b11b935990bc176a0f80758f647. 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/USHM20721700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9104eb98592d608720cc1cad08ef7b567c596921fa8559ffe618488b41065f7b. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USHM20721701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ff4d97b086a72af95a697b0cd92d8abee1c1771928bff4d0430600b95eada4. 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/USHM20721702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b71c321413aca37f3bb15dbff524df3635c79be7983c351984a40ba588cd80b. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/USHM20721823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4aefc926bef7b68757ed8474c223e138ec91aaf25cdece262c95e56c7060fc. 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/USHM20721824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816484454d219ae52b4f66c27b00769e027c684aa20ba9d430baa40d22ba5c2f. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/USHM20721825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4be17ff89af42eb215fb0c9054b0dda85502377a8eda66395d8bb6bf5b65e4. 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/USHM20721826.
Basse Dance Tune: Pas De Brabant (Improvised)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc7ad95e26c54239f3f98ea70515dd00bce839b21707a1b9c0b9f053cd3e197. 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/USHM20721827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbadd61009f044695f9de744c8d22ec0bd3862cd45584baa114134facf2e6dd2b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USHM20721829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44152e200f152e7a79255b72c6b394ab2966fbacefa2a6269d081e821892c70. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USHM20721830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41045a92e789099b313ec12218f8766bfdc84a59df51ec3b7766b4d1d030215. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USHM20721831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab3e6926e1c77bf9bae74e23648419f267dffd984251f3038fdd8c1338ce693. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHM20721832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceff91b6154014e3c20d72cc44d936c8a1a2621361443f71b37dd119882704e9. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USHM20721833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce044de1e1466b8666f3f2abdc102114f7394561a383b3f320a7ca0750756cf7. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USHM20721834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1b558601e1a3f90972ac3c7391a6aea2b4156d4d5caab4e73f6815165f467d. 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/USHM20721835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c6fe23ea225b41421b29df7717cf410f769a2e410e830c45bfad277dcae6a4. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USHM20721836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde44546ab0ffd1a009937961192b809c3cfdc7747a71d810dbadbf8a6fa8518. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/USHM20721837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa825f7e9c97c039aa3b697572a1b0332b0e0afec2fbe6a7d0e1a6be6c667538e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USHM20721838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46efb4c6ecfe03fda409f74529d7f5b203ea3290466819d8b18f7e9fae30bb08. 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/USHM20721839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf77299f8d4370bc4f4249352892d52ff1ac839f476dc9025ff90895559969c. 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/USHM20721840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19196c82a39a7313988163070699b6af1e9b3c0df9b36f40344deaeeccd4335. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USHM20721841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4f0cd879e32efc57bdecbf24baec3d4404da6251f1159e6ca0db7a20e7358b. 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/USHM20721842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79c4c77b3baa7a0f5f4ae6f29bbd3883467161b529a0bf44166582886fc4ce7. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USHM20721843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7b8155b523f71e6f9321cd61d348396b50ea7f482d21520ae3d83e9a31834d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USHM20721845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2167e4755bbea1aac6f998e75f42c836cc9150aa3675d45d4599a59935c5a7. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USHM20721846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac2b830c4ad2e3bf3d9e0cb1835a603babd2d26e52d2d6ce1f1d02e5d6da656. 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/USHM20721847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc1d56de743ad265f1f1550f1c8883b76cab5fe081700e1daf74a215439bb36. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USHM20721848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e3122e9ddae7329c460af9d62465e79362c8cfc073328fce70b623281fb190. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/USHM20721849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a213388a70e7de3e05bf7c50fcddbc5542f072b07d7fa9d60e8b319d19b165. 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/USHM20721850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bfe5bf00af565197878286bf60a4787cbc11290a3619391c82a77adca11446. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/USHM20721851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a121b2b089ff971464b6a1e1bf81d3a6a8a60165858f1b3a1dfdc8ac474f3b5. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USHM20721852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0963e55ee5793b3c52b113bcfd11ccb913d91e0fb45194910e519833fa2692a. 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/USHM20721853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a64c3b22f0f95757b902cb0d552bcdd7ff2ce8db312cf0a7a0d239b4c5e76d. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USHM20721854.
Alpine Airs: Music of Switzerland, 13th-16th Centuries
Songs of the Troubadours & Trouveres: Music and Poetry from Medieval France
This England: Music From the Time of Shakespeare
Dances From the English Dancing Master: Singo 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1a9e41e606128d79a0b3c5b7c32602551212d9ded1aad3b7b051eecd5de8bb. 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/USL4Q0746577.
Dances From the English Dancing Master: Stingo 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b5e62b3971a06f4171d4fcfc8156de1b5dfe615c5abbfc4e3c0f08aaf2cd31. 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/USL4Q0746578.
Dances From the English Dancing Master: Newcastle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baea8ce2add8b0f46189991c370c618818b67b384384a507b77c57ab619cc18. 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/USL4Q0746579.
Dances From the English Dancing Master: Moll Peatly
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f05e36ee5cf1083497f41c923dc8715b7319217562ef910b1615f2dff1cc65a. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/USL4Q0746580.
Dances From the English Dancing Master: Nonesuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f65da80127635b0eb9f6e3ad387750ef3d611ae497c206a5ab067d30526b3f. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USL4Q0746581.
Dances From the English Dancing Master: Half Hannikin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8483385f4bf435342712b444a72fa329948ec97357a0edb10fc6a81b85a2b4ca. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USL4Q0746582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe7e4a2a60d097323c64e5e0c4bd52a1a1f9b57bbb2bb1677b077557e2f5d14. 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/USL4Q0746584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b979e9655c550b34dcbbe5777b65044818420567538669302224bd7b5a99ba. 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/USL4Q0746587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13501faa46c82d0f9652f20512512b929091fe347dfb755b15daa5fce20fa76d. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/USL4Q0746588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad37fb7681960965f349ff38b3030b64061eb21ff2ae21fc5f1619d4ab9f106. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USL4Q0746591.