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 0x6828e064da0ea09ae5a928c4b267fed96fdb12e7d71886bc827286b3d5cc7083. 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/673b8886-586b-4481-9a84-c46ee1cff553.json and https://artists.proofprofile.net/proofs/artist/673b8886-586b-4481-9a84-c46ee1cff553.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x99d86f3416289e60414a5e3f6845c1906e1e657166eba3db022e7d9d386403b9. 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/7BPNsPxErlKEtupkIlxOGE.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/7BPNsPxErlKEtupkIlxOGE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8165b4a70782537d5f958c201066f6c66f322c58a8cf01621ea9071e02dcd61. 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/5R8tHjTviIGR6Jb0hxGil4.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/5R8tHjTviIGR6Jb0hxGil4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d43591efaf219b451dacc7dccf6ea6777b202e7e8f64a0b94e34b539221a786. 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/5utbL9g6ZAlV1MDEkghvH8.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/5utbL9g6ZAlV1MDEkghvH8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf06695824dcd9f189606f5d7413a1c0690eb08481745e3bcd5d0faca782fda. 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/5SvBSL1s1wMcSjbDEr0tqV.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/5SvBSL1s1wMcSjbDEr0tqV.
{"copyright_id":"0x4dd2e52d5ac8ac16489dbeadb2101cdde83a57abc8c55a788d56e0e58cf4fcaf","isrc":"DGA0M2321907","name":"Dil Tod Gayi","registered_at":"2026-06-19T13:50:52Z","spotify_id":"704zC7bQHPfOrhBe6QekSu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd2e52d5ac8ac16489dbeadb2101cdde83a57abc8c55a788d56e0e58cf4fcaf. 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/704zC7bQHPfOrhBe6QekSu.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/704zC7bQHPfOrhBe6QekSu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e67c2df507a75e17409e760366caa6da63207783c6a87728d50e6a6aea5b1b4. 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/5ORVc7uNxsJfPuGFEMAEaJ.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/5ORVc7uNxsJfPuGFEMAEaJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf145608829c4f1b14d0273953ccf60a6e8c851ca787a71a1b46fe0c0b63fdbb9. 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/04CFG7K3WAlL81TICq5321.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/04CFG7K3WAlL81TICq5321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064145b71af9fcaf2f22966e3d37023f03956199949194d96fc1d2066c23c381. 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/6Ca66dys8T7LWkKg6eY5JV.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/6Ca66dys8T7LWkKg6eY5JV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122ad464f53e682fa2dfa40a9e78c7a3ea04aa312f1235f803485f92c9be0b0a. 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/3LthCh3GGAm1XjvDcKmCSG.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/3LthCh3GGAm1XjvDcKmCSG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddff4bb8f5a1ab9a26fb7d5d6c5d9d5c0afb45fefac27d13e8514bf0d82d833. 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/6pCUdn2CoXIFwryZpuIk1z.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/6pCUdn2CoXIFwryZpuIk1z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d3f6d4204e26b6b3a34d04eb8ce9494088b2d182559d94fa8ba49bf9965a23. 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/6pprRG4zENBwRbIbsGHWRM.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/6pprRG4zENBwRbIbsGHWRM.
{"copyright_id":"0xb6abf4dfe6a3b9df2357e4ceee3a389b0a3d5e109995058e2f59790be33da9bd","isrc":"FRS182169626","name":"Kul Milake Jatt","registered_at":"2026-06-07T08:07:55Z","spotify_id":"0iMb2zFl9j8ToNUgeiOT7r","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6abf4dfe6a3b9df2357e4ceee3a389b0a3d5e109995058e2f59790be33da9bd. 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/0iMb2zFl9j8ToNUgeiOT7r.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/0iMb2zFl9j8ToNUgeiOT7r.
{"copyright_id":"0x06d5ddea008ba228fdbf1ad8ea2caacaa469788201bfb9028aaddd783b6fb9a2","isrc":"FR10S2274899","name":"6 Foot","registered_at":"2026-06-05T09:03:58Z","spotify_id":"6oj3cBQSyrSva2LsD9Jb5d","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d5ddea008ba228fdbf1ad8ea2caacaa469788201bfb9028aaddd783b6fb9a2. 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/6oj3cBQSyrSva2LsD9Jb5d.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/6oj3cBQSyrSva2LsD9Jb5d.
{"copyright_id":"0x2ae648c3a7ad6dbaed457fcf81aeea38d27b521be6fe2e33b776fbac34b3509b","isrc":"FRX452182113","name":"Apna Style","registered_at":"2026-06-18T17:24:33Z","spotify_id":"24R3cupJPwkvh7gcxHfXNW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae648c3a7ad6dbaed457fcf81aeea38d27b521be6fe2e33b776fbac34b3509b. 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/24R3cupJPwkvh7gcxHfXNW.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/24R3cupJPwkvh7gcxHfXNW.
{"copyright_id":"0x0c5b4b3ef70ee8a56d2ec6ce9a3df2f4a52c48466692bae7ae8a81abb83c0eb5","isrc":"FRX452182117","name":"Dekhi Jau","registered_at":"2026-06-05T13:13:47Z","spotify_id":"2ngq78bHqbuD3VNnmtn3O3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5b4b3ef70ee8a56d2ec6ce9a3df2f4a52c48466692bae7ae8a81abb83c0eb5. 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/2ngq78bHqbuD3VNnmtn3O3.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/2ngq78bHqbuD3VNnmtn3O3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca11d857f8aaf34f7041f81e0655045a844c08756ac112af4e149ccea9b27123. 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/5ipeoW3Pid7QPoK1E0ZRih.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/5ipeoW3Pid7QPoK1E0ZRih.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be0b6ec7d18fbfd98d9ea770e1dd0b42e39f51c56662608ab70bfba4bd86e81. 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/3rHWjldztRlz9qjmNBLIf5.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/3rHWjldztRlz9qjmNBLIf5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fc361c1320de3ab44ddac6d893f06127318feb72850154905b6ac2a37bdf80. 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/6qi3ubZGpuUVujcl3AUtKi.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/6qi3ubZGpuUVujcl3AUtKi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87183edf7e1785446b8b7817213a82603d92d3fe34dde91c05887500336a8479. 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/3QCCbFo3YU6kLJF1NCXejx.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/3QCCbFo3YU6kLJF1NCXejx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237d88c3312ebf0297355303018b82311f8ddfed6b0161c177f61c481805f4fe. 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/1G8eu0onR2fQsIVRr9mdfG.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/1G8eu0onR2fQsIVRr9mdfG.