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 0x38c36bc77a2f17bf684956f73275d98bd5f3c6f84af7b4d27b49a8990c30ae2f. 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/a0f97aa9-092c-457d-93c7-c09be9fa09c7.json and https://artists.proofprofile.net/proofs/artist/a0f97aa9-092c-457d-93c7-c09be9fa09c7.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 0x3862f3116af6742c460ee55f1ddf9a48a819d80b28c0d69362a7956a628ad7a5. 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/2nrO8u5FYQAhZvFDCjSbpp.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/2nrO8u5FYQAhZvFDCjSbpp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04f23eb6b254556ce66052003ace99e1a433d133a078fc016f29fb504f16e2a. 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/6ZbUcwHTIl46Dk2Y3aPazZ.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/6ZbUcwHTIl46Dk2Y3aPazZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dec4cd1210620252386c7951224d5097966b65db56b3e4979f355f26e31dfcc. 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/1hvYvO6ANKf6h2IzSZk80c.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/1hvYvO6ANKf6h2IzSZk80c.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be073f8f12429122cae5d1d97f40f7e817c56e96a8072bc13c8d0cc5bc9d712. 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/34d6n6HMfyOiQjudsxbfeh.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/34d6n6HMfyOiQjudsxbfeh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a6015350a3532d184d43d2e40b907e0d3167a2c0e159d741426cad0c76e480. 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/36Vu50SqfPituVQp9uH4aM.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/36Vu50SqfPituVQp9uH4aM.
{"copyright_id":"0x1b3a6a9929b3d5c8076f3d575b6109cc32adecf0aec72285fc80642b9921fdda","isrc":"USSM10015394","name":"Long Way from Home","registered_at":"2026-06-07T06:13:21Z","spotify_id":"0rQF9ALufrCvTinPiH2vyE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3a6a9929b3d5c8076f3d575b6109cc32adecf0aec72285fc80642b9921fdda. 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/0rQF9ALufrCvTinPiH2vyE.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/0rQF9ALufrCvTinPiH2vyE.
{"copyright_id":"0xcf16c715c5abb5bc542bab1cfb61e93d4e6bd23343a64b084d068e4be431cef4","isrc":"USSM19000772","name":"Tick Tock","registered_at":"2026-06-05T20:43:25Z","spotify_id":"1sMlUYVSp6PqjrYDOKBPrH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf16c715c5abb5bc542bab1cfb61e93d4e6bd23343a64b084d068e4be431cef4. 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/1sMlUYVSp6PqjrYDOKBPrH.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/1sMlUYVSp6PqjrYDOKBPrH.
{"copyright_id":"0x107ae08ce922e993cf38f586fe19e8dded971bad22426319b57d74744f0627a6","isrc":"USSM10021781","name":"Telephone Song","registered_at":"2026-06-04T13:01:00Z","spotify_id":"3hGsDRUzPgXMDSRZzgXkhS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107ae08ce922e993cf38f586fe19e8dded971bad22426319b57d74744f0627a6. 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/3hGsDRUzPgXMDSRZzgXkhS.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/3hGsDRUzPgXMDSRZzgXkhS.
{"copyright_id":"0x5ed7209b77da16da3ba5faca08d466b1c918ea2a3e647d85d519fba8851f4102","isrc":"USSM10020921","name":"Baboom / Mama Said","registered_at":"2026-06-08T17:37:25Z","spotify_id":"0cv4EZPXvFs6JWRl5DzLYk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed7209b77da16da3ba5faca08d466b1c918ea2a3e647d85d519fba8851f4102. 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/0cv4EZPXvFs6JWRl5DzLYk.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/0cv4EZPXvFs6JWRl5DzLYk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550f0ca99b2adfea4b3ffbbce7c017567737bd00fa3149389bc7c9ec13da81b8. 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/2T3mWbAqtVIW8p6E23HD5s.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/2T3mWbAqtVIW8p6E23HD5s.
The Essential Stevie Ray Vaughan And Double Trouble
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107ae08ce922e993cf38f586fe19e8dded971bad22426319b57d74744f0627a6. 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/5JpzTcYa9V9HaIHKh1X3Qp.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/5JpzTcYa9V9HaIHKh1X3Qp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3862f3116af6742c460ee55f1ddf9a48a819d80b28c0d69362a7956a628ad7a5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0yrJ04PF6zCra63AJisdPq.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/0yrJ04PF6zCra63AJisdPq.
{"copyright_id":"0x1b3a6a9929b3d5c8076f3d575b6109cc32adecf0aec72285fc80642b9921fdda","isrc":"USSM10015394","name":"Long Way from Home","registered_at":"2026-06-07T06:13:21Z","spotify_id":"2QKwLpmj9sQj9lzjNYeicV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3a6a9929b3d5c8076f3d575b6109cc32adecf0aec72285fc80642b9921fdda. 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/2QKwLpmj9sQj9lzjNYeicV.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/2QKwLpmj9sQj9lzjNYeicV.
{"copyright_id":"0x1f82b96f51c30e2b85ef83f25c900fed1c716a4ee9e23e95cd9fb30c7a2a3521","isrc":"USSM19000473","name":"Telephone Song","registered_at":"2026-06-23T03:52:50Z","spotify_id":"3s1BaUxCrvfDRcYq3xoWHK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f82b96f51c30e2b85ef83f25c900fed1c716a4ee9e23e95cd9fb30c7a2a3521. 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/3s1BaUxCrvfDRcYq3xoWHK.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/3s1BaUxCrvfDRcYq3xoWHK.