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 0x64e9124cf85a3c6a41cdaecc51ea6e907c9efaea38887e645842f2b51a83e124. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49fcfdee-2c46-4428-af65-9651b677da82.json and https://artists.proofprofile.net/proofs/artist/49fcfdee-2c46-4428-af65-9651b677da82.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Something Entirely New (from "Steven Universe")
{"copyright_id":"0x037dfc9b584adece5a88d298eae8d8380933a6b4689421d017002b6479e797fa","isrc":"USE831548227","name":"Something Entirely New (from \"Steven Universe\")","registered_at":"2026-06-18T18:53:18Z","spotify_id":"5zc1e5ST8h1VXiJPESW5Su","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 0x037dfc9b584adece5a88d298eae8d8380933a6b4689421d017002b6479e797fa. 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/5zc1e5ST8h1VXiJPESW5Su.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/5zc1e5ST8h1VXiJPESW5Su.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad34b096145685d27f6d53bdee024bc878fbbadb82af9731bcf70ca5938dabc3. 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/2raaLDmpFZJvtTdGkjE3YT.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/2raaLDmpFZJvtTdGkjE3YT.
{"copyright_id":"0xf70f8f38a73f06caadb1629d811e6e5755f41ae80f0bf40bc8507612421c9c1f","isrc":"QZ4JJ1669171","name":"Peace and Love","registered_at":"2026-06-08T21:35:21Z","spotify_id":"3vyemjadrxFKvsR1ZCHTlx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70f8f38a73f06caadb1629d811e6e5755f41ae80f0bf40bc8507612421c9c1f. 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/3vyemjadrxFKvsR1ZCHTlx.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/3vyemjadrxFKvsR1ZCHTlx.
{"copyright_id":"0x20d59296a9783c6e6d43d2539d1d8295222c5110653dc540f7d8f85a19d366ff","isrc":"QZPJ32115794","name":"Honey Hive (From \"Super Mario Galaxy\")","registered_at":"2026-06-19T15:31:26Z","spotify_id":"7suxLaRfcThK4zWtBUFH5q","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d59296a9783c6e6d43d2539d1d8295222c5110653dc540f7d8f85a19d366ff. 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/7suxLaRfcThK4zWtBUFH5q.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/7suxLaRfcThK4zWtBUFH5q.
{"copyright_id":"0xd1fd370db82af8a032c7ad6a4d96663e5aa2f3a563bccfe1147700fd0232e0ff","isrc":"QZK3Q2400172","name":"Stardust Speedway","registered_at":"2026-06-21T07:49:31Z","spotify_id":"78Ewyu2PkIoHsGwn8n2LFm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1fd370db82af8a032c7ad6a4d96663e5aa2f3a563bccfe1147700fd0232e0ff. 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/78Ewyu2PkIoHsGwn8n2LFm.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/78Ewyu2PkIoHsGwn8n2LFm.
Simple and Clean (From "Kingdom Hearts")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122dc87246f2ad01603b89b12055cdec22e57116130636d682917e07b57f0625. 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/4Jpgi4FBYo7jdHN2lihJ4H.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/4Jpgi4FBYo7jdHN2lihJ4H.
{"copyright_id":"0x4bd3cd68f49f8764aac527b8f397cb9a2093fc7582ccffc8bd598b330e939fcd","isrc":"QZFYZ2039545","name":"Why So Blue","registered_at":"2026-06-09T15:04:34Z","spotify_id":"4XRLXZ58gTWXVxnO6Eq6qP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd3cd68f49f8764aac527b8f397cb9a2093fc7582ccffc8bd598b330e939fcd. 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/4XRLXZ58gTWXVxnO6Eq6qP.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/4XRLXZ58gTWXVxnO6Eq6qP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f650c66741e1a5f32362432ac00948300c7ed8b80cf957c1dc08d03b7e90a6. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:36:01Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6GYXVUU9juGfaYCGzu0b9n.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/6GYXVUU9juGfaYCGzu0b9n.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c2f3cd9aeaf542721f862f37d86e0be20b040a0845933867ffb58fdee38c37. 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/2TDO8P5BeEQS23GyS63RhS.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/2TDO8P5BeEQS23GyS63RhS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca10730da001ab3bd843b9affe9f6a02f27d378592abc777719ad53df37e6357. 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/1C4rVzrcMahTlDG7hU6Hsc.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/1C4rVzrcMahTlDG7hU6Hsc.
Green Hill Zone (from "Sonic the Hedgehog")
{"copyright_id":"0xc9c80a4bd4c9da7da0426e63ad6f263edafb8278fc078535b9fdfbdeff632a5b","isrc":"QZ6K41701254","name":"Green Hill Zone (from \"Sonic the Hedgehog\")","registered_at":"2026-06-11T14:49:28Z","spotify_id":"3jTmO1vOfwradduqkoKZ7R","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c80a4bd4c9da7da0426e63ad6f263edafb8278fc078535b9fdfbdeff632a5b. 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/3jTmO1vOfwradduqkoKZ7R.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/3jTmO1vOfwradduqkoKZ7R.
Overworld (Light World) [From "Legend of Zelda Link To The Past")
{"copyright_id":"0x90ab545d6efa86214323fd5cb12606fa5513692b4a1f9b52c88bcbfd68db6ba1","isrc":"QZ22B1739601","name":"Overworld (Light World) [From \"Legend of Zelda Link To The Past\")","registered_at":"2026-06-21T06:47:18Z","spotify_id":"2CxQ85KF7F23Ab7uYcVn7X","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ab545d6efa86214323fd5cb12606fa5513692b4a1f9b52c88bcbfd68db6ba1. 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/2CxQ85KF7F23Ab7uYcVn7X.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/2CxQ85KF7F23Ab7uYcVn7X.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e8b9727103592dea84ee7350ecf48dd06b72a51d6c50565c8a369904d2070a. 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/6jzQId6DR4ph3zZqdOozn6.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/6jzQId6DR4ph3zZqdOozn6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6035088e495aa13aa2076d0570b12f0c87e2d67d1576a9353c8214c79cfac152. 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/3lN5My82ShRUr6bHKRPQxd.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/3lN5My82ShRUr6bHKRPQxd.
{"copyright_id":"0x9bde3ccc98644b64775f1e2f4af1a93810f09480eba328a32f2406d6bac9136a","isrc":"USE831580928","name":"Asgore (From \"Undertale\")","registered_at":"2026-06-18T02:43:01Z","spotify_id":"22rYauZbdaYWaZRnGrhyyI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bde3ccc98644b64775f1e2f4af1a93810f09480eba328a32f2406d6bac9136a. 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/22rYauZbdaYWaZRnGrhyyI.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/22rYauZbdaYWaZRnGrhyyI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d579059c232630d35ed41f5178ea37fff5f8e371a67269da999193976db50c. 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/1R2CSc0yO1ThjXkTs7P2fH.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/1R2CSc0yO1ThjXkTs7P2fH.
Omega Strikers: Summer Splash (Original Game Soundtrack)
{"copyright_id":"0xf0111e98134367de324debe3c91d345c942f70e9e16cfe2c85b1c144139c29e0","isrc":"QZTV32388285","name":"The Tofu Titan (Dubu's Beach Theme)","registered_at":"2026-06-21T18:31:04Z","spotify_id":"2qBhgnK6Y06fcmi6BxD0gD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0111e98134367de324debe3c91d345c942f70e9e16cfe2c85b1c144139c29e0. 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/2qBhgnK6Y06fcmi6BxD0gD.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/2qBhgnK6Y06fcmi6BxD0gD.