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 0x5a6204033e50d442425810b227c291beee4031487fad04bc7fc409b0096f189d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c579a73-5444-409d-9c30-77b9863cb06a.json and https://artists.proofprofile.net/proofs/artist/6c579a73-5444-409d-9c30-77b9863cb06a.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 0xb1ad3a4de38885b90bff7284b32be8b2724cda33dd0945f3d0ff82af97aa0863. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/HKI190716701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4227e9f71d706dce2fb91f64ed8b4fed125410ecba936d804ee57b88b778f3. 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/HKI190716702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343aedd358967263bb981379ce17b291710a10a6a30899bbdf6baa12be869621. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/HKI190716704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2cac020a38c2945986432200083f1fe1edd21147a6e710d647b58e0b57d995b. 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/HKI190716705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7683c8de7e4b7c29838eb647ce15ff75f2ae4c89645f0af66f4d1590b962a66e. 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/HKI190716709.
Ave Maria - Les Plus Beaux Ave Maria Et Chants A La Vierge (The Most Beautiful Ave Marias and Songs To the Virgin)
Ellens Gesang III (Ave Maria!), Op. 52, No. 6, D. 839, "Hymne an die Jungfrau (version for choir): Ave Maria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7621dc3eba4dd1cd13ba680e9fc1f76d6a14db7df0a300616ec6355799ac9d. 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/HKI190567009.
Svenska visor och valser (Swedish songs and waltzes)
Fredmans sanger (arr. J. Eriksson): Fjäriln vingad syns på Haga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19267e0958f246525b96f506660b09fc562c39bd0e267e5e90172a354d2a7dde. 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/HKI190592917.
Det gatfulla folket (arr. H. Ek): Det gåtfulla folket
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dcb395885eb3dc0f49522064d604b8bccc1920fa561fb18d2e311e266c42e5a. 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/HKI190620208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7deabf7227f5288d2c1c6b96bf90b63d2a6d56a4de8ff8b1a688915822f8ce35. 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/HKI199310713.
Den forsta gang jag sag dig (arr. R. Sund): Den första gång jag såg dig
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a0fac03265f3715e6f77d377cee4774501dca25263ddaccede9e79933facf2. 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/HKI190716712.
Sa skimrande var aldrig havet (Never Did the Sea Shimmer Like This) (arr. A. Edenroth): Så skimrande var aldrig havet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57891bf02e8eb11f3eef8a9ca22e0edf905a62caf3e9e72d2240bdada244f858. 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/HKI199325514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9800685191f47590602a3f95e01daf2e240fc56ae662c9dc433fff3a256cf0. 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/HKI190620204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f033e966a204cc17bcd345465fa669269340246207afa368a1244cc68ab700. 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/HKI199310701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06a13107087d7300130c3c4c2cf14772bd61335fa2bd43163d9d73181f0c0bd. 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/HKI190620216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ad3a4de38885b90bff7284b32be8b2724cda33dd0945f3d0ff82af97aa0863. 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/HKI190716701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f776557a28bc2695a5dda174e6a0d7e94884af847e9a98b4b3b29392a43042. 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/HKI199310710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3898422a28b96e7e632cf4e68b0cca42bd1217fe7ca3b2140739a7bf2c66daa1. 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/HKI190592906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8dd5b5c63238adccf3e3232cdd859e424fd0425421a1185675e674b504bea8. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/HKI190620201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e20a953522b1f542510ee640864a3b96b9dba7becfebc1103e1c0a9f8d865f6. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/HKI190592922.
Ack, Varmeland du skona (arr. A. Soldh): Ack, Värmeland du sköna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f7ef2a84df537206d581055087d8b5b6687644fc13553f0571ad45115cb756. 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/HKI190620203.
Classical Music for the Christmas Holiday, Vol. 1
The Nutcracker, Op. 71: Danse de la fee (Dance of the Sugar Plum Fairy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb621bb64d2a8ba219e2f6950b867120bfdd619a982db2f1b804d3a8549c85c39. 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/USB8U1613247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e99dc3b416ef46bcd53efd659b009ea344115ef0b0abc5fe6a3d4097981c2c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBBA9608110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324bad069b676e62132ca8ec9b1508a814aeeeaed20ec7f95ba24ee6414ee1fd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEVOZ0200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1245602033e7c7a0cdbe490e38ab68dce9aa4d0f91190bd5e62a967c70b5edab. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEVOZ1154002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c586ffd01db261cce8c574653523cae38cb888ee2ffd691c136e05d0580d41. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEVOZ0200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114580b5ab11dac5ff184d90cb0efdd67b5dbf0c19b1a5daf2a3cbf3ace31803. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEVOZ0900116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b7f0f5fde877f3a6befef12355d5293e72fa85c33365bf8b3cae4af6af5ec9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190567113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57891bf02e8eb11f3eef8a9ca22e0edf905a62caf3e9e72d2240bdada244f858. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199325514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e42e1b733f84a0d971ff483b141191b360d055da13197aa980eff7cf46d5e0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEVOZ1150702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0883f8dee07c872a153f7de8ab1da23cafd241612c8d1d880a85481c59e9e7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEVOZ1154009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64b0cfddb3ffffd060e204b1fbe9d4681c7314294ad7d8cb0be194e34d7bc4e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBA04004002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82f3b4c63cbf000e9c2aa46e7c184af33844280186d5f0e64bd9668d73ca1d2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEVOZ1153910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031bcaa1ec69150c2cf7d94408462e7f504c1ff4f8f3c0b555b6b1e7731a8996. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBBX9100402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a50f17138de691c27561cea2397ab5282b04caedda0de853e0bfe6e82a73da. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEVOZ1154011.
Frösöblomster I, Op. 16: VI. Vid Frösö kyrka
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c840e53809f73518ce2d4644454e5a9f087c5384230b1d8f9dc67a8cfd226d5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199992903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8674d4ec68fcdf21cda5dd53f1d9277d37e5889be1f19594d29be721a2e4c361. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBA04004001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf400922ce371c62a066eb2812944de3d3d85ced894d878393c377a68be33388a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEVOZ1154003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3b827a38a67b5abb6f00fab1e646ba5e7cd87e367d08b4cacfbf09ddae1bb5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEVOZ1153315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a5490a9169b3574d40b9d3e73aa47f866cdfd42e296fbd34b436aa3c1e32d8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190967711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38af2cf50f67f07c0dfc39aabf249b79d1499b796e00ddef25be915f0b7ef68. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190967705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f026612d468a8da6e90bbb53521a753641f5aaab6f7aa2c4ff4190b81c5fcf2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1202102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc065ef1df14f93bf8e050a41113a6d4b37e126addadf5de1f67769ad2e5f6e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190567108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46907e55965d7907091911a87828c86e891d81ca799461f45d85b1135c2a3785. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEVOZ1154001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6072462505ce663be78fcfac4c1ca113034d4759bed7edaf9217d9ff5e72660e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEVOZ1154007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74553335ddda973f2846d5c44a2e2254503955e5caa7ad857c210d507476f9b3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1305405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e635405856d1e784bde6d060db5b290e2870db2dea925a37aec4459aa93fa3e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1400617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a26bee5f437557643f53fad436a578a703c472ef50842c894fa602d5cabd3e1. 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/SEVOZ0800202.
Vårfavoriter - Sånger om våren och kärleken
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013760f140064b3d8f390a7fd1416df5d1134797e85603f93e9562993c98d6fa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190567103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e307bcb9684a4eef9411b6a45b8fcfe18fa4ce12a279a50c3003af0f8f25fca. 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/HKI199325507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06758215c8e5424ddf1beabcca2a1e8b4877224aa400f4f42ddd7ceacbb71931. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190567101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd34ee28d4a2415d1074cf9816590132a551239aca0fd53acbe99d573ffaec9. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/HKI199325508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2110dc67115f256f849bc95fcfb05f4a01142ac4e6568eba281045501fddac83. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190567107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf226690af1eccdd7c92f684812b5e9ae25304de59805ec2d8abd8b3774cd2d05. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190567102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8daaffea5830c757df8acdd6a3bb02d2c47f32a30efca8ae4b8b0ca85fd1ec. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199325503.
2 Elegiac Melodies, Op. 34: II. Last Spring
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f6b716acb40cedde5c66abecc26e58ed8652fe6c5d3089cfedb3cd7b3cdf42. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190601305.
The 4 Seasons, Violin Concerto in E Major, Op. 8, No. 1, RV 269, "La primavera" (Spring): I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0b9ce99c5fdd097e2318ff22e6b98cb01a6daea86f71d36d0637298a5d1f97. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199329401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfc13d1e9df6dd9d594b17f1e996dbc19f18a54222d5c15422d4c213e374865. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190567111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc078fbb8f235164cfae857105ff852e25444d3b87ef38273d57e9e675f813f7. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/HKI199325518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b7580e51e2697ca18b53de9eeffd9e9357404b93831adc24abc13b3191fd58. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190567104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef731d35a25dd244afda6144a4ba7dd37c6377e3aea235d619f6d37516780ff. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190840404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bd195b6903a0c75e76af593f445f0d0a3b0c5c40d731434fbfcbcb5e358dc8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190917811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4227e9f71d706dce2fb91f64ed8b4fed125410ecba936d804ee57b88b778f3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190716702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf068459d3560fa45537881218b6714443f01c0fa53fa23c110de1819eb06aee. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/HKI190567001.
Ave Maria: Madonna Mystica - Bach, J.S. / Handel, G.F. / Schubert, F. / Bruckner, A. / Brahms, J. / Liszt, F.