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 0xde88f7d1bbbe185fb72640ad6d9d37d1fe28de61b3ee22ff6b0930c89a7bfb60. 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/9f73bfee-ed4e-4dc0-8fa5-c3fc0a8fdca2.json and https://artists.proofprofile.net/proofs/artist/9f73bfee-ed4e-4dc0-8fa5-c3fc0a8fdca2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kleiner tropischer Strand in der Nähe einer Lagune
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 0xbcc93b46bda1acb0670a77ded8e298b0dc47bcd6cb438b3c42fff5d340082205. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ATR981184805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de4aebdf09a71ff288454ee2faf40193fb2a8ff6c2a09f364008bc58a04a897. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:36:10Z), 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/ATR981184806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44ff5f64efc1f6ed4fa4a7012ce57c9914b0285ee85cb2d64571d60b532c7ac. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ATR981184807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3467e9cd130c8cad1188a243e8de14ecc4247da95492a0ede2fea424cdbc73. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:08:51Z), 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/ATR981184810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490ee47ee4fbcb71e22e5273030490de630ef5388341545ffc1ddf55593bcfba. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ATR981184811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5eac18c79cd0a31e7243df4fe6a2042ac8269c7e25a1e587ffdf286a01918e9. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/ATR981184812.
Regenwald Morgens an einem kleinem Flusslauf
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1680efaea4e1454aa192b4dd2b09da2e1dbdb70992c5d000dac17e340b56962a. 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/ATR981184813.
Regenwald Nachts an einem grossen Wasserfall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa451bda6bd040a910a7f50b6c9c9a31b34cf0126482c60ce4cecdfc2876ccaa2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ATR981184814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76dab94921cb6cb5055872aaa2ae437f99f12137af5994a40e32426144ebec4c. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/ATR981184816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76630db4fff39de47f27955681445bde044615b4ce83098fa846b04c502f8519. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/ATR981184820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44eb575fbf6cc2e6f9c7f3cdfe27c51ba51a60f927806f4299404f7f3e9f97f9. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/ATR981184821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49efc379cc4cee045e2f67ebd754620552de42210667a2d5b57644fd3aa81b09. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ATR981184823.
Stimmungsvolle Wälder, Waldgeräusche ohne Musik, zum Entspannen, Einschlafen oder als Hintergrundbeschallung (Live)
Die Melodie des Waldes, Waldgeräusche ohne Musik, zum Entspannen, Einschlafen oder als Hintergrundbeschallung
Die Bäche des Waldes, Entspannung mit Naturgeräuschen ohne Musik, zum Einschlafen oder als Hintergrundbeschallung
Entspannung mit Naturgeräuschen: Wald und Wiesen, Meditieren, Träumen, Einschlafen
Wälder des Sommers, stimmungsvolle Waldgeräusche zum Entspannen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d899457c629b227ae4a60884ff465a4aa95520632b77eb66b99a6facc9226e7. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/USHM82151385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c754f2c5698a4cae725184f95a4c14a87aedeb3e257081b72a2e62e6a0fe25. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USHM82151390.
Einzelnes Vogelzwitschern mit entferntem Bach
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b545772e52abd8b898eb50cc588a9584bfb9ff09bf0df12418db4e7103f757b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USHM92116263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dc924cc4eda7e05369454fcb3abba1e17984df2738ab2b970bfb3c3105e966. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USHM92116268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47dae536b163a6165899af3568600a4d5379d0c562c04439798032c3b000aa30. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USHM92116270.
Wälder im Frühling, entspannende Waldgeräusche mit Vogelgezwitscher
Vogelgesänge der Waldlichtung, Waldgeräusche ohne Musik, zum entspannen, einschlafen oder als Hintergrundbeschallung
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b17c857e30cfde62e56076727a5cbfa520c360e396ebe32a709d81fea4c6d2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM22201098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696a6fdcf090c129608f2f70c8871d73a0dc35612c67a53dd7899aecd4de3315. 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/USHM22201099.
Geräusche der Natur: Sanftes Bachplätschern
Die Melodie des Windes und der Blätter: Naturgeräusche ohne Musik, zum Entspannen, Einschlafen oder als Hintergrundbeschallung
Die Melodien der Wälder - Waldgeräusche ohne Musik, zum Entspannen, Einschlafen oder als Hintergrundbeschallung
Ruhige Atmosphäre mit leisem Grillen Zirpen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c4eed8d51303de86fa3b66856dc37bd5eea84160cf3f6d9bf0416e5237dd20. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USL4R2371162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed29caa5d623c66d86561662e19a3380f26dae9af358465864b6978b0319c9f. 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/DEUE12415004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7dc063d47ce7a33ebbe2e5f2d03eba1d2cf2b744f8231c3412cf3f76c52212. 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/DEUE12415005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7716b25542850fd3ee6d9aa7abeca0b409e302890cc9f9d507d8bed6e317b1. 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/DEUE12415006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc63e5bd18f5a2bcfc8ee3e34678ce94ce7313511b51d28c037a3f3eab779dd. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:51:16Z), 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/DEUE12415008.
Beruhigendes Vogelgezwitscher (Vogelmusik)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6846b52898827492ac23e4e407a17fa367e89e171e53b401b9cb90d2c1e4605e. 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/DEUE12415134.
Relaxation Oasis: Nature Sound Music, Vol. 1
Relaxation Oasis: Nature Sound Music, Vol. 2
Waldmusik - Entspannungsmusik und stimmungsvolle Waldgeräusche, Ausgabe 1
Waldmusik - Entspannungsmusik und stimmungsvolle Waldgeräusche, Ausgabe 2
Waldmusik - Entspannungsmusik und stimmungsvolle Waldgeräusche, Ausgabe 3
Waldmusik: Entspannungsmusik und stimmungsvolle Waldgeräusche, Ausgabe 4
Waldmusik: Entspannungsmusik und stimmungsvolle Waldgeräusche, Ausgabe 5
Waldmusik: Entspannungsmusik und stimmungsvolle Waldgeräusche, Ausgabe 6