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 0x778f82ef6eae434dfeae1f5d018a81a2700397cde0c5d5ba71e807077f94b829. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/923d4112-bef2-4c30-bcff-b1d6af35aec4.json and https://artists.proofprofile.net/proofs/artist/923d4112-bef2-4c30-bcff-b1d6af35aec4.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 0x0ce0680f33ff2d994d68159b7bf1e66195a2d3e7c6317f282f17b9277ec57e19. 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/4hFQTvD4ZioWwAG3CWfS9D.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/4hFQTvD4ZioWwAG3CWfS9D.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0bf2c0b064342edae01a02f0606380c20b8044049ad5804946055161be12340. 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/5f7MdwR02i1Lxy9TLi80SA.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/5f7MdwR02i1Lxy9TLi80SA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23d919294423d11bdff71c9c31cb3b344ed6dfcf74f63620c8620c2249fbf49. 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/60gGo3sc2lmSpLpdCduJ3T.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/60gGo3sc2lmSpLpdCduJ3T.
feel away (feat. James Blake & Mount Kimbie)
{"copyright_id":"0x7905fde66bf46c6c5b5e29f64225e57d00022d44ed49ca29b7f30a6303455f18","isrc":"GBAKX2000008","name":"feel away (feat. James Blake & Mount Kimbie)","registered_at":"2026-06-04T07:57:14Z","spotify_id":"0pauM2SXIq7pAQlmpYq3N6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7905fde66bf46c6c5b5e29f64225e57d00022d44ed49ca29b7f30a6303455f18. 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/0pauM2SXIq7pAQlmpYq3N6.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/0pauM2SXIq7pAQlmpYq3N6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7733830cad3828a831b69b5281b5c86ef4b983dbfc481a9951316cbb078c432. 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/6bTAz3pg5ywBeZHCQoleJB.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/6bTAz3pg5ywBeZHCQoleJB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fbcf78f6002b7c28ba1f762d13003692f8b698e4502406878e40c0447d796b. 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/7jn0ATNNqtWgDk8wLYa3gw.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/7jn0ATNNqtWgDk8wLYa3gw.
{"copyright_id":"0x5c2dd3ef4fa1059344a07d08bc596c147d49f80938c0d8b886dac043deb3cc08","isrc":"FRDN42100210","name":"FALLEN ANGELS (feat. slowthai)","registered_at":"2026-06-04T11:53:36Z","spotify_id":"1RO9EcqWGzZIY5Z5LYjP2R","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2dd3ef4fa1059344a07d08bc596c147d49f80938c0d8b886dac043deb3cc08. 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/1RO9EcqWGzZIY5Z5LYjP2R.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/1RO9EcqWGzZIY5Z5LYjP2R.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0f8a9d4cdc083e4c194f93a76ab30a223354ca4b50145e2c6d17fd29bd4007. 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/0JDDiyJTG3oNddBRs0TJ1X.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/0JDDiyJTG3oNddBRs0TJ1X.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b6d2a0245e7717c4b2b5670e7f774ff80b682769ca27b2b670b0910be03900. 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/58FeZw9fdcWTMZnx5uUFZz.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/58FeZw9fdcWTMZnx5uUFZz.
Melt My Eyez See Your Future (The Extended Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fbcf78f6002b7c28ba1f762d13003692f8b698e4502406878e40c0447d796b. 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/5X0g53vyHrrU6sY17Rs50g.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/5X0g53vyHrrU6sY17Rs50g.
{"copyright_id":"0xb325c15d0abedc29fb67cfc5d9c39b8cb6ed5355ca287a157236a1775d847a10","isrc":"GBUM72202204","name":"up all week (with slowthai)","registered_at":"2026-06-08T17:50:58Z","spotify_id":"1l73bwJECQdHrcep2LNwLG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb325c15d0abedc29fb67cfc5d9c39b8cb6ed5355ca287a157236a1775d847a10. 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/1l73bwJECQdHrcep2LNwLG.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/1l73bwJECQdHrcep2LNwLG.
Pressure In My Palms (feat. slowthai, Vince Staples)
{"copyright_id":"0x4bb26fb17a25b05176e11302c31c144404d93ab55a066c5485acd895d785062b","isrc":"USUM72013377","name":"Pressure In My Palms (feat. slowthai, Vince Staples)","registered_at":"2026-06-04T11:10:09Z","spotify_id":"54dpkB3UnzU8X2GDais0mm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb26fb17a25b05176e11302c31c144404d93ab55a066c5485acd895d785062b. 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/54dpkB3UnzU8X2GDais0mm.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/54dpkB3UnzU8X2GDais0mm.
{"copyright_id":"0x4bb26fb17a25b05176e11302c31c144404d93ab55a066c5485acd895d785062b","isrc":"USUM72013377","name":"Pressure In My Palms (feat. slowthai, Vince Staples)","registered_at":"2026-06-04T11:10:09Z","spotify_id":"2nWB8ZpA1lxulicEUzTQ6W","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb26fb17a25b05176e11302c31c144404d93ab55a066c5485acd895d785062b. 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/2nWB8ZpA1lxulicEUzTQ6W.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/2nWB8ZpA1lxulicEUzTQ6W.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6235f5e8b2e71ad9662610abf1b427a06358ed9784608552253644009f76ff. 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/7nM8AJiDVnOJ6oDP3wmejQ.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/7nM8AJiDVnOJ6oDP3wmejQ.
{"copyright_id":"0x4cf4a114a510fca3dc6aab9679da66105d04920ccfe5d6a1afe6bf848c96ce66","isrc":"GBUM72000586","name":"My High (Edit)","registered_at":"2026-06-07T15:34:31Z","spotify_id":"67HFbeyAkneVBBwMVk84y7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf4a114a510fca3dc6aab9679da66105d04920ccfe5d6a1afe6bf848c96ce66. 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/67HFbeyAkneVBBwMVk84y7.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/67HFbeyAkneVBBwMVk84y7.
{"copyright_id":"0x008cdd00fbf688c691f555ac11351abb714e290c69ef8f9a790a7d29b7ba7903","isrc":"GBMVH2100480","name":"BDE (feat. slowthai)","registered_at":"2026-06-05T05:44:13Z","spotify_id":"16om9zMQojl3PDanvhxWfR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008cdd00fbf688c691f555ac11351abb714e290c69ef8f9a790a7d29b7ba7903. 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/16om9zMQojl3PDanvhxWfR.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/16om9zMQojl3PDanvhxWfR.
{"copyright_id":"0x008cdd00fbf688c691f555ac11351abb714e290c69ef8f9a790a7d29b7ba7903","isrc":"GBMVH2100480","name":"BDE (feat. slowthai)","registered_at":"2026-06-05T05:44:13Z","spotify_id":"3ed5gMzocnaLWCvljQdCwe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008cdd00fbf688c691f555ac11351abb714e290c69ef8f9a790a7d29b7ba7903. 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/3ed5gMzocnaLWCvljQdCwe.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/3ed5gMzocnaLWCvljQdCwe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b6d2a0245e7717c4b2b5670e7f774ff80b682769ca27b2b670b0910be03900. 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/3ndhPhaWdICplZVrC4NeCR.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/3ndhPhaWdICplZVrC4NeCR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7733830cad3828a831b69b5281b5c86ef4b983dbfc481a9951316cbb078c432. 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/70tIjdBrjUQkUG9jScQyoo.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/70tIjdBrjUQkUG9jScQyoo.