1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d494345f64e8a7af2d16d8c9f0495150e1ba49aaeb4f311b72cdad3ab032b1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d090877-5932-4f4c-956b-5774c4dab0d7.json and https://artists.proofprofile.net/proofs/artist/3d090877-5932-4f4c-956b-5774c4dab0d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Choppin' Dem Thangs (chopped and screwed)
Choppin' Dem Thangs - chopped and screwed
Pappardelle all'arrabbiata (Kixnare remix)
Pappardelle all'arrabbiata - Kixnare remix
Pappardelle all'arrabbiata (Jordah remix)
Pappardelle all'arrabbiata (Klakson 2077 remix)
{"copyright_id":"0xa47c5d7cb804127aff082d151428263abc3fa5169ce904b380d97ca0153dfed2","isrc":"PL25M2100006","name":"Pappardelle all'arrabbiata (Urb Remix)","registered_at":"2026-06-18T22:10:09Z","spotify_id":"3I2g6OrRnwIhw3qYwlaDzQ","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47c5d7cb804127aff082d151428263abc3fa5169ce904b380d97ca0153dfed2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3I2g6OrRnwIhw3qYwlaDzQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3I2g6OrRnwIhw3qYwlaDzQ.
Pappardelle all'arrabbiata (Kixnare Remix)
{"copyright_id":"0x11dac9ebc03b953945352ddbf406eac571a60cd07121cdca703b54ba3b614229","isrc":"PL25M2100007","name":"Pappardelle all'arrabbiata (Kixnare Remix)","registered_at":"2026-06-24T22:55:40Z","spotify_id":"6b1hTdb2RBds6x8mwNNwG3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dac9ebc03b953945352ddbf406eac571a60cd07121cdca703b54ba3b614229. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6b1hTdb2RBds6x8mwNNwG3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6b1hTdb2RBds6x8mwNNwG3.
Pappardelle all'arrabbiata (Jordah Remix)
{"copyright_id":"0x57b7fa081b6b74fc8a1f7e93b3472be71f900cad4b05c6e9ee164c09ba9dce12","isrc":"PL25M2100009","name":"Pappardelle all'arrabbiata (Jordah Remix)","registered_at":"2026-06-26T01:32:07Z","spotify_id":"33BdrcGFZ7n0PgIu6OHgf8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b7fa081b6b74fc8a1f7e93b3472be71f900cad4b05c6e9ee164c09ba9dce12. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/33BdrcGFZ7n0PgIu6OHgf8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/33BdrcGFZ7n0PgIu6OHgf8.
Pappardelle all'arrabbiata (Klakson 2077 Remix)
{"copyright_id":"0x68c6f80d849def673d3b53a170fd520253262f4f1db994c49196ff3f5caba8dc","isrc":"PL25M2100010","name":"Pappardelle all'arrabbiata (Klakson 2077 Remix)","registered_at":"2026-06-08T23:33:47Z","spotify_id":"1hnWFM5Kyp4boZ4Zbnu37I","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c6f80d849def673d3b53a170fd520253262f4f1db994c49196ff3f5caba8dc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1hnWFM5Kyp4boZ4Zbnu37I.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1hnWFM5Kyp4boZ4Zbnu37I.
Pappardelle all'arrabbiata - Jordah remix
Pappardelle all'arrabbiata - Klakson 2077 remix
Pappardelle all’arrabbiata - Instrumental
Pappardelle all'arrabbiata - Instrumental
{"copyright_id":"0x70e49dcb8b0c5ae3761ac4c1dcc0111de6b131f0b4063f7c5827fff293714751","isrc":"PL25M2100001","name":"Aglio Olio e Peperoncino","registered_at":"2026-06-04T16:37:05Z","spotify_id":"5YiXPwPgak64I9Cs8h5sfF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e49dcb8b0c5ae3761ac4c1dcc0111de6b131f0b4063f7c5827fff293714751. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5YiXPwPgak64I9Cs8h5sfF.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5YiXPwPgak64I9Cs8h5sfF.
{"copyright_id":"0x1f5e66b8f57f67fe204218c27825f86360e5e5b9ce7d974d77eda9d1a450ee76","isrc":"PL25M2100002","name":"Żyli Byli Try Japoni (Skit)","registered_at":"2026-06-11T03:24:45Z","spotify_id":"2CXVJbZx2SRnOyyszk8uVv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5e66b8f57f67fe204218c27825f86360e5e5b9ce7d974d77eda9d1a450ee76. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2CXVJbZx2SRnOyyszk8uVv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2CXVJbZx2SRnOyyszk8uVv.
{"copyright_id":"0x00d6bfc61f164ab0b2bef2083e2708ef28e5542bc5b3d19f5e8c7dc978d8bac9","isrc":"PL25M2200051","name":"Teesy Vol. 1/10 (Remastered)","registered_at":"2026-06-08T22:41:08Z","spotify_id":"1VrnE5bXc8pO8utx7Iqmni","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d6bfc61f164ab0b2bef2083e2708ef28e5542bc5b3d19f5e8c7dc978d8bac9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1VrnE5bXc8pO8utx7Iqmni.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1VrnE5bXc8pO8utx7Iqmni.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e1b6a35bf416a6bb6108552807222b0f046de180818c76e36453376e7e42b7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5pnfzCvtQeOfbUWaFxS8zK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5pnfzCvtQeOfbUWaFxS8zK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf80bfdcc7407a71eb35c616f222be9422089563d4b26051bf9c7f7c10935ed. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3ZDJlLPi9VGgLkkx9H8suS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3ZDJlLPi9VGgLkkx9H8suS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5256a14959910e6be3fdbdbd3f5b50c0e0d86778b37f7f9e4575c811ef739c12. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3mNoJWoURPZH8FtUX16HBd.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3mNoJWoURPZH8FtUX16HBd.
{"copyright_id":"0x64792ac124b6a8a07fe89cce8671e459b17d7b6e759bb7cc0888cbd13c6dbf5c","isrc":"PL25M2200038","name":"Choppin' Dem Thangs","registered_at":"2026-06-09T20:23:02Z","spotify_id":"33nmzesOIv3SukUMryxmUB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64792ac124b6a8a07fe89cce8671e459b17d7b6e759bb7cc0888cbd13c6dbf5c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/33nmzesOIv3SukUMryxmUB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/33nmzesOIv3SukUMryxmUB.
{"copyright_id":"0x9fb2a44c93a25e62e9f41d00a6ed918b7def26fbe44522c3179de77778046a42","isrc":"PL25M2200053","name":"Truteń (Remastered)","registered_at":"2026-06-05T23:21:34Z","spotify_id":"1vMHRkWyYZeVXONaPZ9SJT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb2a44c93a25e62e9f41d00a6ed918b7def26fbe44522c3179de77778046a42. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1vMHRkWyYZeVXONaPZ9SJT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1vMHRkWyYZeVXONaPZ9SJT.
Pappardelle Alla Arrabbiata - Schmoltz Viva Italia Remix
{"copyright_id":"0xcc23ca19707a2ad5db3a91da8b38c551adb006ff0292d9712b2f6ae94d1d69d6","isrc":"PL25M2400091","name":"Nowy Numer","registered_at":"2026-06-22T07:14:48Z","spotify_id":"7yBdoCt1Ch8IIIdNdLUyjI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc23ca19707a2ad5db3a91da8b38c551adb006ff0292d9712b2f6ae94d1d69d6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7yBdoCt1Ch8IIIdNdLUyjI.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7yBdoCt1Ch8IIIdNdLUyjI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e619ce49760e88fb568a7ee2ba13e1715c36333bbeb599edaa7a990b587e24. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Savb61DLeQXXyCCjw4Vph.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Savb61DLeQXXyCCjw4Vph.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd518dcb6e4f5e0530e67884fb451b63c9d581689175f5522a13c89cd32b5b1d6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4S2GIBOYzHPJjdnITKQTXf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4S2GIBOYzHPJjdnITKQTXf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ab2d17c842ac29dad93995cd31ee121147dbd5439165ce5ac3f82c84776e86. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Pa6yh1g4zY326PsotIlBt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Pa6yh1g4zY326PsotIlBt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531e66d19e8480677ad30e8f43a70642930bf0eead4c5f3652b498076498e7ac. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5pj5kikNsNIfPZqj5YACLv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5pj5kikNsNIfPZqj5YACLv.
{"copyright_id":"0x9f83f9c10a034a96fa77c2c86dd3bfefa5e5ce81005b0681a47ff618f79b30a2","isrc":"PL25M2400085","name":"A Milli Milli","registered_at":"2026-06-07T02:44:11Z","spotify_id":"5sc8vdpmkVHxzBlqrAeLmh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f83f9c10a034a96fa77c2c86dd3bfefa5e5ce81005b0681a47ff618f79b30a2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5sc8vdpmkVHxzBlqrAeLmh.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5sc8vdpmkVHxzBlqrAeLmh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8725889ad29254340f463998e29e8532b842585244bf8f53836169654a0d30. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Olcd75fIz3rcrVcrHeu4Q.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Olcd75fIz3rcrVcrHeu4Q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cd380cf91e8d119f00e0dfd17b053b65a6900b1f779e405343ce0c2281557c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7KVihGOE9zSK2NeoorfLzE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7KVihGOE9zSK2NeoorfLzE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cd380cf91e8d119f00e0dfd17b053b65a6900b1f779e405343ce0c2281557c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5icR1VxJHqC1ZTqK0wgqC4.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5icR1VxJHqC1ZTqK0wgqC4.