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 0x9c91b2e2e0fcd5ef11ad38a3700b484f9a512989607deb7dcf2e1944ae7e55fe. 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/0353d39e-09cf-46ab-8016-8b998d145194.json and https://artists.proofprofile.net/proofs/artist/0353d39e-09cf-46ab-8016-8b998d145194.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Du-Rag (Motus Redux) [feat. Bonnie Banane & Walter Mecca]
{"copyright_id":"0x8f7298a36b7424b0f5443fc154daa90b6a6dae3b073ce550cdd0923d22d19bca","isrc":"FR9W12131988","name":"Cour Des Miracles","registered_at":"2026-06-29T18:05:09Z","spotify_id":"1LmmaY7vbIRD5qUnB507lz","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 0x8f7298a36b7424b0f5443fc154daa90b6a6dae3b073ce550cdd0923d22d19bca. 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/1LmmaY7vbIRD5qUnB507lz.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/1LmmaY7vbIRD5qUnB507lz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df2223a6c7d993347b5ca94d05caff67196078a5b4d2251169b496dddae387b. 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/7173y3j6XwRnHmuvXijvii.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/7173y3j6XwRnHmuvXijvii.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f79691e4fe304886b1731c8ad1af3f184e4f372c6d559ee8cf061257be36772. 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/74SKS91bfQHLomV8rcErwE.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/74SKS91bfQHLomV8rcErwE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f79691e4fe304886b1731c8ad1af3f184e4f372c6d559ee8cf061257be36772. 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/7MDIsTKsVJtXWWmKxJcOH5.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/7MDIsTKsVJtXWWmKxJcOH5.
Bonbon a La Menthe (feat. Bonnie Banane)
{"copyright_id":"0xcc2af437bf96819b61bd8511d74701c711adb2fcfac0fd1da0d4dd7f9c6032c1","isrc":"USPG21300043","name":"Bonbon a La Menthe (feat. Bonnie Banane)","registered_at":"2026-06-19T16:15:32Z","spotify_id":"3xJMp6uOux6mS8QHUoZSYL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2af437bf96819b61bd8511d74701c711adb2fcfac0fd1da0d4dd7f9c6032c1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3xJMp6uOux6mS8QHUoZSYL.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/3xJMp6uOux6mS8QHUoZSYL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8477c8c6bbbbc3bdc60fe241c9374bde5148da83bc7488c3ab8847538aec7e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2d8nllRxyEv6t54Ugefmvu.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/2d8nllRxyEv6t54Ugefmvu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a444e20c2fd93e4f973a3b3ef5c6ca6a8031436a0d861f8e471c5c5bc46c14. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5jc1bsHFheQDi2w1jHtwib.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/5jc1bsHFheQDi2w1jHtwib.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a444e20c2fd93e4f973a3b3ef5c6ca6a8031436a0d861f8e471c5c5bc46c14. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3GXSl7cwBOsNkBaPVKT2En.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/3GXSl7cwBOsNkBaPVKT2En.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0158818786e055fe2523f20afab369a4cca3d33e26203aa220d535ab735f96. 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/47Un433pnhy6GCnd8ZRJW8.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/47Un433pnhy6GCnd8ZRJW8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1a7378e3a8872566f2f2291345df624db992eb1870bfc203bfeaef7e37a447. 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/7xkJsYHR37uwfUhHhOlz54.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/7xkJsYHR37uwfUhHhOlz54.
{"copyright_id":"0x8729efbcb8aa0b02bb0c86ff24588017c543950fa51008e3f25b43062fa450eb","isrc":"CHA441900217","name":"DAFT PUNK.. Interlude","registered_at":"2026-06-19T16:51:25Z","spotify_id":"5QkjcbgXlvVd59TvVQZQVy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8729efbcb8aa0b02bb0c86ff24588017c543950fa51008e3f25b43062fa450eb. 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/5QkjcbgXlvVd59TvVQZQVy.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/5QkjcbgXlvVd59TvVQZQVy.
{"copyright_id":"0x7eb6c69583bad76a1e1db48a80f1084fca75a24ddb47686576938c73dd309d60","isrc":"FR9W12037672","name":"Phantom of the Paradise","registered_at":"2026-06-19T12:55:54Z","spotify_id":"2PegEeA9DVgEGzmSeosxKZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb6c69583bad76a1e1db48a80f1084fca75a24ddb47686576938c73dd309d60. 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/2PegEeA9DVgEGzmSeosxKZ.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/2PegEeA9DVgEGzmSeosxKZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56c71f082348c9662f04f4702bb9c94d236c8bf90400e2645329bbfae7333b9. 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/0ClSzOZrQAkJmmvRJY0oVV.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/0ClSzOZrQAkJmmvRJY0oVV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56c71f082348c9662f04f4702bb9c94d236c8bf90400e2645329bbfae7333b9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6sEiy6DlCZdirZ75RDWTow.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/6sEiy6DlCZdirZ75RDWTow.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5de587530e01e84812c3be0ba6b0dbe963f3f896c226bc91c78a185bb7ddaf. 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/4tbc3GBEJ7amF18bGsbual.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/4tbc3GBEJ7amF18bGsbual.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2adcb1b3f70b4f2a3038abb04de23761f7e3b306d8afde69c63c14c40d07c2. 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/66C4MOPpYiUraFoaBvbd40.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/66C4MOPpYiUraFoaBvbd40.