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 0x95106efab6754eb2341ee0ace442330558c8b80b545ed8d21addfb11df32702f. 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/67b47d23-f3dc-44a4-8ce3-8a0da35d84ae.json and https://artists.proofprofile.net/proofs/artist/67b47d23-f3dc-44a4-8ce3-8a0da35d84ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xd47d2143894ae3acbfe48b8b1ba6ad610e44b109565bec46b39d5ce0b1b8bd05","isrc":"USMH51000063","name":"Black Country","registered_at":"2026-06-21T23:19:13Z","spotify_id":"6kLqrIs0ZbuDny5oCcxMqC","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 0xd47d2143894ae3acbfe48b8b1ba6ad610e44b109565bec46b39d5ce0b1b8bd05. 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/6kLqrIs0ZbuDny5oCcxMqC.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/6kLqrIs0ZbuDny5oCcxMqC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e36c5800018a4e7e74db1b15166b3885f73d37ff0963de339db62baf2d3197a. 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/3BGRgR5fiQoyxFObuihCfc.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/3BGRgR5fiQoyxFObuihCfc.
{"copyright_id":"0xfbf911948992fdadb01ccf126c4fb269a153b4334e8cb1589866eee15a7a1648","isrc":"USMH51000065","name":"The Great Divide","registered_at":"2026-06-25T19:29:51Z","spotify_id":"3VeUAPl7ACBbxWYYYVibg7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf911948992fdadb01ccf126c4fb269a153b4334e8cb1589866eee15a7a1648. 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/3VeUAPl7ACBbxWYYYVibg7.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/3VeUAPl7ACBbxWYYYVibg7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094b544a16fa80c7527a2a04d24125591d7a6b642d6d6fe5b1883752ec51e45b. 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/49dn4EPs7mSPQ7Sy2XAZrN.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/49dn4EPs7mSPQ7Sy2XAZrN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e1ed706462a4845efb438fe75a4335da43fdaa4284890491621da80c5e7b93. 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/5FZLmmRPVRwHd5AYRJMOeq.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/5FZLmmRPVRwHd5AYRJMOeq.
{"copyright_id":"0x67c39b0595b3251fa220d82effc8cdefb92d1d1c0385c1bc526d208d90ef0318","isrc":"USMH51100088","name":"Man In The Middle","registered_at":"2026-06-09T07:15:53Z","spotify_id":"3FGKMeQhIH2XzfyztxsPR1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c39b0595b3251fa220d82effc8cdefb92d1d1c0385c1bc526d208d90ef0318. 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/3FGKMeQhIH2XzfyztxsPR1.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/3FGKMeQhIH2XzfyztxsPR1.
{"copyright_id":"0x9bc9f918a3bf236c8c392489c467023dc06ffddcd3fbe3803c50928110c43d7c","isrc":"USMH51100090","name":"The Battle For Hadrian's Wall","registered_at":"2026-06-10T03:20:43Z","spotify_id":"50M7XDnRFI9eDN73FMdb2m","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc9f918a3bf236c8c392489c467023dc06ffddcd3fbe3803c50928110c43d7c. 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/50M7XDnRFI9eDN73FMdb2m.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/50M7XDnRFI9eDN73FMdb2m.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8ac7abd017818b17c4577457c6fb2a2f5f7f80b41f32e4ee91214a5dfbe53a. 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/28vrujzgAt72h3rhrD4idK.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/28vrujzgAt72h3rhrD4idK.
{"copyright_id":"0xe5ad7d14d13081fe771dd9ceba04cceedb3afee3e4534682aa8b5246267346cf","isrc":"USMH51100093","name":"Smokestack Woman","registered_at":"2026-06-20T06:33:20Z","spotify_id":"7FvE3fOpG7kkFtgf8Aqa61","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ad7d14d13081fe771dd9ceba04cceedb3afee3e4534682aa8b5246267346cf. 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/7FvE3fOpG7kkFtgf8Aqa61.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/7FvE3fOpG7kkFtgf8Aqa61.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d57a3d39a41086a7ada98812d7c949ddd32efb2841e61112d38c70fb06a6f8. 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/1U82262MkZPAJX1kMauNgQ.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/1U82262MkZPAJX1kMauNgQ.
{"copyright_id":"0xfa37714ad823d08eb5f6c079c49063aaca528dc59d7f3d0a1d3fcdb89271c21e","isrc":"USMH51100095","name":"An Ordinary Son","registered_at":"2026-06-20T05:21:28Z","spotify_id":"5ddBbZoxOVW2emVrstsK3d","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa37714ad823d08eb5f6c079c49063aaca528dc59d7f3d0a1d3fcdb89271c21e. 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/5ddBbZoxOVW2emVrstsK3d.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/5ddBbZoxOVW2emVrstsK3d.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422af422be45a6979dc2460d84856739f5b3fbe22352ff83df8e62108cc66271. 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/6ITaEtMrLwsgErdYLws35T.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/6ITaEtMrLwsgErdYLws35T.
{"copyright_id":"0xdb22912ce710e0e2c298bcd1be76f3dd3d03a5b4c55e79cc8bfbd6acdb97c4a4","isrc":"USMH51100096","name":"Little Secret","registered_at":"2026-06-10T16:58:35Z","spotify_id":"6pXslDyqPjS2LzXnvovsqc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb22912ce710e0e2c298bcd1be76f3dd3d03a5b4c55e79cc8bfbd6acdb97c4a4. 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/6pXslDyqPjS2LzXnvovsqc.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/6pXslDyqPjS2LzXnvovsqc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f712a1c2f76b29d5347c97ae297eebdf2333b3570f3c67b2ef97390964eee5f. 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/0l7BSMpsEnjokVbgOKMYKv.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/0l7BSMpsEnjokVbgOKMYKv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f86d0b00162f4411039565da1ebd7cf73667314d840a4f7b132078fe596478. 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/77UCjH91weMHQBTqeHV6Gs.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/77UCjH91weMHQBTqeHV6Gs.
Revolutions Of The Machine (Intro) - Live From Germany/2011
The Battle For Hadrian's Wall - Live From Germany/2011
Song Of Yesterday - Live From Germany/2011
I Can See Your Spirit - Live From Germany/2011
The Ballad Of John Henry - Live From Germany/2011
The Great Divide - Live From Germany/2011
Man In The Middle - Live From Germany/2011
{"copyright_id":"0xd76385ca0bf5a603baac6b580073fc6c296505cab235b2b055f0dceb4205b41a","isrc":"USMH52400828","name":"With You I Go","registered_at":"2026-06-07T13:11:54Z","spotify_id":"7AcxvtAFKqcXeWbr7UVbvU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76385ca0bf5a603baac6b580073fc6c296505cab235b2b055f0dceb4205b41a. 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/7AcxvtAFKqcXeWbr7UVbvU.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/7AcxvtAFKqcXeWbr7UVbvU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1507093e53d564a18e8118969fd76a18dbd430e902db39e06ccc1285c549c520. 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/5jgcfQr74zZSbY7zPP1YnI.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/5jgcfQr74zZSbY7zPP1YnI.