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 0x3d53a2cbd88a669b6be7e60b25cd2d8dc0490f977618942d71ba6c67164b0e93. 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/42b876f9-e072-4081-b329-042fb4c20d5f.json and https://artists.proofprofile.net/proofs/artist/42b876f9-e072-4081-b329-042fb4c20d5f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Everything But You (feat. A7S) [Seamus D Remix]
Everything But You (feat. A7S) - Seamus D Remix
{"copyright_id":"0x03922d1690c62872c784b2d67965b71e50bd4047f27f174671da4e4324a5f840","isrc":"GBAHS2200363","name":"Everything But You (feat. A7S) - Seamus D Remix","registered_at":"2026-06-08T14:25:52Z","spotify_id":"4z8zLRrabFCcc1QAIDjgoD","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 0x03922d1690c62872c784b2d67965b71e50bd4047f27f174671da4e4324a5f840. 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/4z8zLRrabFCcc1QAIDjgoD.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/4z8zLRrabFCcc1QAIDjgoD.
{"copyright_id":"0x995165c4f8afa9d4530b388a8cab59da2f7db434a2d443e5403fa00b8a850793","isrc":"GBAHS2200065","name":"Everything But You (feat. A7S)","registered_at":"2026-06-09T17:12:57Z","spotify_id":"4yoOMm35YC4OFByU7QPbx1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995165c4f8afa9d4530b388a8cab59da2f7db434a2d443e5403fa00b8a850793. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4yoOMm35YC4OFByU7QPbx1.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/4yoOMm35YC4OFByU7QPbx1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd166a0c08bbab3532632321288916bd4bb30cf16cbb223d6b1d03c93a9592b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/56o7MokiZaiNjHJTGZEpu1.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/56o7MokiZaiNjHJTGZEpu1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986aa5b7ebea11643267bf154bf288c4ba9c80313d43e1d2173119f471aeb1a0. 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/1eR3xYhVYtV3dq54a96Cir.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/1eR3xYhVYtV3dq54a96Cir.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb158df67bfea40f34069ca196d69fe4f3bde631816b685ed5688a098c4df6301. 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/19xLc19DPEwL1lZYrzD3Iw.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/19xLc19DPEwL1lZYrzD3Iw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0ae37d19314ceae45e494d865638d57f33d46d13f5e0ac12a124e4760f09b3. 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/0hXG4w3IGx7hSh1fVeF9V0.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/0hXG4w3IGx7hSh1fVeF9V0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bd2f7cc6445d30934d62de48b2243686fa9ad63e879361b94122e4f1c586e3. 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/2Ae5ADN2nqRpI80F73KLFY.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/2Ae5ADN2nqRpI80F73KLFY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ebbb8f7e6135b85a1b080d1c8fcf91e0a758850231668178de622226646062. 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/7hGXOM3wKjw98wyfriUzjN.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/7hGXOM3wKjw98wyfriUzjN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd166a0c08bbab3532632321288916bd4bb30cf16cbb223d6b1d03c93a9592b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5RkkNmqxwpKTM0Zb5oQkKd.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/5RkkNmqxwpKTM0Zb5oQkKd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd166a0c08bbab3532632321288916bd4bb30cf16cbb223d6b1d03c93a9592b. 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/0ddvXI226RBn6NXy692GK7.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/0ddvXI226RBn6NXy692GK7.
{"copyright_id":"0xb91ddf85b1a9f9759e21f6e65f207a9c4ffbe6fd59c3013c76a07cf72142de9b","isrc":"QZHNC2123223","name":"In The Club","registered_at":"2026-06-09T05:07:18Z","spotify_id":"34Omo22Ldc8RZdozYw2Gpm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91ddf85b1a9f9759e21f6e65f207a9c4ffbe6fd59c3013c76a07cf72142de9b. 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/34Omo22Ldc8RZdozYw2Gpm.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/34Omo22Ldc8RZdozYw2Gpm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa860f2101e5bfae73dd27b8dea6ed93333899e0f9f084ec9f91d719e1773bc78. 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/4H7WoH8P2RmYFZdgUccONz.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/4H7WoH8P2RmYFZdgUccONz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ba7569067b571247960b409ac3a0c00f1493f3b8fa45b16bbcbcff9534dd76. 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/5wwJwcvwWcYMLq3QgSAP87.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/5wwJwcvwWcYMLq3QgSAP87.
messy in heaven - Belters Only x Seamus D Remix
messy in heaven (Belters Only & Seamus D Remix)
{"copyright_id":"0x214a9daf3ff62f1fa2df4d93b95e35cae44c5463013b0c9b9456a4f461a81471","isrc":"GBARL2202317","name":"messy in heaven - Belters Only x Seamus D Remix","registered_at":"2026-06-05T09:06:33Z","spotify_id":"5SDAczbN6My9k74QuD9Q6o","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214a9daf3ff62f1fa2df4d93b95e35cae44c5463013b0c9b9456a4f461a81471. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5SDAczbN6My9k74QuD9Q6o.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/5SDAczbN6My9k74QuD9Q6o.
{"copyright_id":"0x7cd166a0c08bbab3532632321288916bd4bb30cf16cbb223d6b1d03c93a9592b","isrc":"GBARL2101727","name":"Like That","registered_at":"2026-06-04T09:32:44Z","spotify_id":"1LXrnAyFJXnCEZdsXFZKad","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd166a0c08bbab3532632321288916bd4bb30cf16cbb223d6b1d03c93a9592b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1LXrnAyFJXnCEZdsXFZKad.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/1LXrnAyFJXnCEZdsXFZKad.
{"copyright_id":"0x214a9daf3ff62f1fa2df4d93b95e35cae44c5463013b0c9b9456a4f461a81471","isrc":"GBARL2202317","name":"messy in heaven - Belters Only x Seamus D Remix","registered_at":"2026-06-05T09:06:33Z","spotify_id":"1yTWL3JF91IERIHPn6yqQb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214a9daf3ff62f1fa2df4d93b95e35cae44c5463013b0c9b9456a4f461a81471. 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/1yTWL3JF91IERIHPn6yqQb.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/1yTWL3JF91IERIHPn6yqQb.