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 0xfd7b8790af49aa191d84fd5d3b3e4e7669be6185ad5ce481c32f28449c1d59f8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/984c57ac-6ca5-41ce-b898-52225aba6147.json and https://artists.proofprofile.net/proofs/artist/984c57ac-6ca5-41ce-b898-52225aba6147.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x274159028fdc791d621a0a9babafffbce4b0bd2dbe892954a44dee3a2e7f10ec","isrc":"DEYT72200416","name":"Last Night","registered_at":"2026-06-08T03:47:55Z","spotify_id":"1hrAQcYSB04pglky6NjYRw","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 0x274159028fdc791d621a0a9babafffbce4b0bd2dbe892954a44dee3a2e7f10ec. 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/1hrAQcYSB04pglky6NjYRw.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/1hrAQcYSB04pglky6NjYRw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc287d2e18778ef81e2a97357821c272cbb24fe9bf31d926df9dd0317089cf103. 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/35MR3q7AqsmW5wUqibmdMy.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/35MR3q7AqsmW5wUqibmdMy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f0a921633b864b944fc61fcfe7c55cdc34c2f1f8b996e13d52ae3454721294. 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/0zbcm22tghwbNgXqIhXVPr.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/0zbcm22tghwbNgXqIhXVPr.
{"copyright_id":"0x67ba473856e9a769ba40c7aa7fa1df906d15a6ea39bd0d71d9b2ec60a4500927","isrc":"ATGU62000205","name":"Here Comes The Sun","registered_at":"2026-06-05T22:58:08Z","spotify_id":"5pZaZtWGKlXNb4jT3kjlx1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ba473856e9a769ba40c7aa7fa1df906d15a6ea39bd0d71d9b2ec60a4500927. 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/5pZaZtWGKlXNb4jT3kjlx1.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/5pZaZtWGKlXNb4jT3kjlx1.
{"copyright_id":"0xe405b12408bd85b70c3430959d8eafdec0e249e194640b5f3b35d60fdc1fc936","isrc":"ATGU62000197","name":"Don't Dream It's Over","registered_at":"2026-06-07T22:31:09Z","spotify_id":"6QGW0W7MpKKxlFCwlsttEu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe405b12408bd85b70c3430959d8eafdec0e249e194640b5f3b35d60fdc1fc936. 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/6QGW0W7MpKKxlFCwlsttEu.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/6QGW0W7MpKKxlFCwlsttEu.
{"copyright_id":"0x687ad9d053ea04dee5e4e8745f5dda5cb0c39177a0542a39afac64ebff5c68e8","isrc":"ATGU62000196","name":"Scared Rabbit","registered_at":"2026-06-06T01:48:40Z","spotify_id":"72bT3UC5EtL8a5lUwodAgW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687ad9d053ea04dee5e4e8745f5dda5cb0c39177a0542a39afac64ebff5c68e8. 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/72bT3UC5EtL8a5lUwodAgW.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/72bT3UC5EtL8a5lUwodAgW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88cfa7820cd5c83e5580b6b45c0df1f6ac267886e4926dfa62c1ba0005aad70. 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/57uIbqGJo7Ko0W5B45a2Vq.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/57uIbqGJo7Ko0W5B45a2Vq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ad544b5ea74791b51b3bf8b4d8b32e4a7931904f81d15913de0c2063721d28. 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/7t0S3PdgND4Bq28mdW1gbr.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/7t0S3PdgND4Bq28mdW1gbr.
Light in Your Shadow - Slowed & Reverbed
Heaven Is a Place on Earth - Slowed & Reverbed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccb5a3308fc9d1575f7f096bb56c6fe32a6d30d4fed4efe199f3356744b74f6. 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/0JSu7M7vIZY0xnPFnRLSz1.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/0JSu7M7vIZY0xnPFnRLSz1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92fcb065171dd9848c909cabc5bc524b129c4a8c0326a6628b0ccbac7b41698. 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/7xgO8awD8qkFTi1Wv219LH.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/7xgO8awD8qkFTi1Wv219LH.
{"copyright_id":"0x88acf3f5b8376bad8820efee3988106f0d01e5311e9d9faeff8a3d995cf461c9","isrc":"CH7812355960","name":"Fever Dream","registered_at":"2026-06-10T20:34:17Z","spotify_id":"28yLGYxIwdRrfSjXOMqc7v","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88acf3f5b8376bad8820efee3988106f0d01e5311e9d9faeff8a3d995cf461c9. 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/28yLGYxIwdRrfSjXOMqc7v.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/28yLGYxIwdRrfSjXOMqc7v.
{"copyright_id":"0xbaa2e58a0d5089db5930f8ddb4c2edaaaa1a642923372bfbbe70580ba9db8dcb","isrc":"DEYT72200521","name":"Big City Dreamer - Slowed & Reverbed","registered_at":"2026-06-25T16:07:22Z","spotify_id":"5Up5hKC9i05ajqYaw0QL1p","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa2e58a0d5089db5930f8ddb4c2edaaaa1a642923372bfbbe70580ba9db8dcb. 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/5Up5hKC9i05ajqYaw0QL1p.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/5Up5hKC9i05ajqYaw0QL1p.