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 0x15c045554b4794693e22f357d3d09fba562a4403b60e059dd8f057d2a0f5982d. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/553debb8-921e-4558-a614-69d3ea70a2cd.json and https://artists.proofprofile.net/proofs/artist/553debb8-921e-4558-a614-69d3ea70a2cd.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 0x098ea6819d198de2d670d9505f7eed998a9ed1d66734e878e4e207663d5c84c2. 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/SEWDL6010397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b13565afc813db6d9da90689ec3dc02d861afd4d75b1a87c8a514b179699e9. 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/SEAEE9030140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113bb5fc935fb7ee7f5507b9c4539895583c77e5fc05edeeec5de931baf4304f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/SEAEA9357060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2712a8b379c5c73bb9586a97eb9c0547dbe9f794841b499caf885f87c4bb75b5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEB790301944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4691f9dba6ec08b1c64d0a65b871ab5f5f9f1f2b31571b046c7bc38e52cd0d14. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/BER181334001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7e2a583b56e0a6994eee853aa2020489adccc6c021ffef3196b8995caa4462. 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/BER181334002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84894c31809d99dfeead04b3087a898a51bdcd0ed8abf192052ce4b4f84139b. 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/BER181334003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1814424c4d0adeea9fb395cbac1c4d302e23a30f662a907f7e801263bb08db. 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/BER181334004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a18a9aee75570477a1a4482b6ea1e20a75760f1e9cdef6a787d726a31d4bf40. 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/BER181334005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf39ae5011d08fb1b7a5fc161afad3452280344b27fd30234a1b15acaf3f7eb7. 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/BER181334006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b93457163eb1aabb88775aebe3a57f8a1c6184342de5446d9aa2fdf1f37aefd. 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/BER181334007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee5e736bffd9d053c857eabf9b850c5843879af5958f9f6a20dcf5465aaa0ef. 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/BER181334008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb452ac87e6d7732fe599d1010ea2515a1734ba4be801665dc0ccf4a2f1f8b9. 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/BER181334009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c220cccd531f2e4e8785ab8ae92e6f8e8dcd541dac9158fe398a28065624ce1. 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/NLY331703857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5fb8234ae50fa37b3383ff45e17fffb0284f7d4e394eac3c7d1cfa628e991a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/NLY331703858.
Como somos per conssello do demo perdudos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81afaaf9e5d048bd8393c7ae86dd9f26c155bf86f7f4aeddfafa2e8917222c72. 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/NLY331703870.
Ancient Meditations - Relaxing Music of the Renaissance and Middle Ages
Of Kings and Thrones - Classical Music of the Middle Ages
Cantiga 35: O que a Santa Maria (arr. J. Ferrero for chamber ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17630681ff4dc45d44cd3fe65c1c77b967664949ea13429537b46b0c96769f5. 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/HKI191156101.
Dance of the forest of no return (13th century) (Stantipe II) (arr. J. Ferrero for chamber ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff4038c204a057f74065fde862a890b0563c4451d4a569d199d03ef16ef7448. 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/HKI191156110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7686fb01f7640678cab7e1be8966ec6229caa07a7d622932a58bdab00578e241. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HKI199593503.
La ultime Estampie Royale (13th century) (arr. J. Ferrero for chamber ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd65cf76a6ee3a984faa2fa074394585efb3e68af0e9df5c4b777b682ffae21. 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/HKI191155912.
Adorna Thalamum [Erfurt, 1301] (arr. C. Haas for chamber ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581e4859651f44296d4b5e98d237127ebe16c6a8c64ad1627b4f5a29c5a71ff2. 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/HKI191069801.
Tan m'abelis jois et amors e chans: Tant m'abelis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74654d5b81d8a8cd343bef35b937ea27afe21f0e393466657968bd350a4f167a. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/HKI199703301.
Domna, pos vos ay chausida (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09ce0419ef5da23688ebcba7159d152dce84e67d2891a3d1e3a97670307b045. 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/HKI199703302.
Non puesc sofrir (Bornelh) - Contrafactum: Ar me puesc (Cardenal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ec9b2ffc79b84314012fb7dfcd0ce86c41c30eed5c7ae4e384ce52f4fdb1b7. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/HKI199703303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f598a8b6891dec6b51ec40f68f1e70d2cacc7efcb1921df810eaf0715e7001. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/HKI199703304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdc5213c83327e6bcf19210b8b15675890bddfad2ecda52e148c1f5c836d598. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/HKI199703305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ca745b860a5ea33b69e8e459ddfda292186eec79240e1b419348e2e95d0991. 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/HKI199703306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864065c98c14a236d70689c37ad9c734975b7653808de2fe20a575dc2dbc10e0. 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/HKI199703307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d870f7648da3c1f071c9e0914854ed28d33e5a59e213f65d32e344cd58598b. 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/HKI199703308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf386825ef1534d9f5db2430e59cc9fd59d3757cee0232cb3b0f90ba536745eba. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/HKI199703309.
Humils, forfaitz, repres e penedens: Humils forfaitz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1b4da5a3736f1c15ed9845db8eaa0b6dcb032609e4f944c951b7aa110429f1. 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/HKI199703310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa538c57bea360abed1437b265926ec9c6f8223262449080446d41d68d73e9322. 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/HKI199703311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45c517b46309cfaec60b623bd21ce020f070f14ee89905bbdd74cb85ec272bb. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/HKI199703312.
Early Music Recordings of Ensemble Unicorn, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef493e6d7ecdf4ff6cc0b082bdd062d8e2786261d13081a53ff0cfcbdfa449b. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/ES5880700134.
Love, Revelry and the Dance in Mediæval Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05272c3446dde1a2dcf471879ecb5a39453bd81e9ae80ec2f087d8ee7aa022cc. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/BER180024301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e628f5f3a34497e711d4a05b68aae8bb87f9d494cbd176aff877513c463cfa5. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BER180024302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766abb805995a3980e5d112e53ae9ee034a1039a8038c27b9720ba2fb1a826e4. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/BER180024303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6337c0b87cdc3f9f50f7342a5d25b6d34a2f457fa2d39fd59f0a27858319d538. 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/BER180121506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60b0d18881cc3c8686cbf9ae44ca33c36d9fe254f0a900e21a603a7d38b417d. 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/BER180121512.
Chansons de troubadours et danses de jongleurs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b0d48a0f6ade65d91ed84c6fd22228cd09cb07203e0593089e7c4777f6e1e4. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRZ092000563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7443308076a75721668ffa60be524212a606bbe06c96ce69ca8af6e9c255a71f. 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/FRZ092000571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02782f51f9191fb1026919b4eb27457ed48572464d1bce28e52a4eb2af19aa3b. 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/FRZ092000574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b04d012f0645bf9f65dd4ded52c1fadaaffb94c8f6202f148d1857f6bf8207. 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/FRZ092000580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d134797b95a2237910fa3184d933dfbf000cf03a0c2580be5eb39c23b530e0. 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/FRZ092000586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28113da97461775c882efd32fab50edf022eb1abd9a9420ba21ef03af67f8a47. 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/FRZ092000587.
Berenguer de Palol: Joys Amors et Chants
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88055bcfe4bdb040d8e0a146d770cc839918af568aa94166be607dff92b6b5aa. 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/USA561309026.
Insiraf: Arab-Andalusian Music from the 13th Century
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6190c7ac1930b37b11ac53d8985cda47cafb89452e49fd664d6501ea5c5ec0e. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/CH1491123906.
Melodien, Balladen und Gesänge aus dem Mittelalter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4850a548d18b45d0b1dd2d5cfc1710711bfb1b6e0115b543e0e03e52d18481. 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/DEY472373730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74654d5b81d8a8cd343bef35b937ea27afe21f0e393466657968bd350a4f167a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/HKI199703301.