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 0x0c990e936a9ab0007095aeec5c65f79a384b8851ab8890141a197b798b0c4738. 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/c1f714d8-ef4e-4cbc-a22d-66b3f6aaa871.json and https://artists.proofprofile.net/proofs/artist/c1f714d8-ef4e-4cbc-a22d-66b3f6aaa871.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Binge Drinker - Live @ the Dargaville R.S.A. 2003
Binge Drinker (Live @ The Dargaville Rsa, 2003)
Binge Drinker - Live at the Dargaville, R.S.A., 2003
Binge Drinker (Live @ The Dargaville RSA, 2003)
Binge Drinker - Live at the Dargaville Rsa, 2003
{"copyright_id":"0xd548192f6e32e9731c9ecce01d818b8dc6d7dde7f5b33c2b0bfad356a60028b9","isrc":"GBYEY0900029","name":"Thinking Cap","registered_at":"2026-06-24T12:27:21Z","spotify_id":"5rcbhpVp02ZTy2nK8t0o3E","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 0xd548192f6e32e9731c9ecce01d818b8dc6d7dde7f5b33c2b0bfad356a60028b9. 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/5rcbhpVp02ZTy2nK8t0o3E.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/5rcbhpVp02ZTy2nK8t0o3E.
{"copyright_id":"0x7ad700f4d1d778d4aba471a92fce0ed72966f4a3cb952abcad8e0bfe3b9e6fe9","isrc":"UKACT1716533","name":"Joyrider - Agressor Bunx Remix","registered_at":"2026-06-23T09:46:02Z","spotify_id":"1WxvoXUoYGcTNnJ7edMsa5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad700f4d1d778d4aba471a92fce0ed72966f4a3cb952abcad8e0bfe3b9e6fe9. 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/1WxvoXUoYGcTNnJ7edMsa5.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/1WxvoXUoYGcTNnJ7edMsa5.
{"copyright_id":"0xf4a8657ab0d0f0fd6c364f1214935e9538ad8455c78e87278584d647113658de","isrc":"UKACT1716534","name":"DOOM - Black Sun Empire Remix","registered_at":"2026-06-22T02:17:36Z","spotify_id":"3lSgnNWbTheQf0ruQlowVG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a8657ab0d0f0fd6c364f1214935e9538ad8455c78e87278584d647113658de. 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/3lSgnNWbTheQf0ruQlowVG.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/3lSgnNWbTheQf0ruQlowVG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ab4a5324839c3d1f7c3e21c0ac2d1177758042410ccd6a6e072a5cf5709f94. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3vsG8Eh4okQS9DhfOsLbzF.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/3vsG8Eh4okQS9DhfOsLbzF.
{"copyright_id":"0xbd4bc86c019688e2cc7e3c87d0b3a2dd744c7e85c2a301aa1d29aeff598773ad","isrc":"GB2LD2310090","name":"We Don't Lie - Body Ocean Remix","registered_at":"2026-06-20T07:01:27Z","spotify_id":"7o4KtUL9SYEfmGcEzrD5RN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4bc86c019688e2cc7e3c87d0b3a2dd744c7e85c2a301aa1d29aeff598773ad. 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/7o4KtUL9SYEfmGcEzrD5RN.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/7o4KtUL9SYEfmGcEzrD5RN.
{"copyright_id":"0x75fd1a6cecdd6b8f3c4eb0353d8c1c51f6bb253a3137b11226dc3d83ed6ca9d3","isrc":"GB2LD2410126","name":"Say My Name","registered_at":"2026-06-10T04:30:06Z","spotify_id":"2wTkI65so44JTBXxLQZD9M","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fd1a6cecdd6b8f3c4eb0353d8c1c51f6bb253a3137b11226dc3d83ed6ca9d3. 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/2wTkI65so44JTBXxLQZD9M.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/2wTkI65so44JTBXxLQZD9M.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737ad66ab1f983c490fe55a68bdd2106e8987679646fbdba4119ee57bfd06d59. 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/6c1hFCCh7JtC84gKIYzPb7.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/6c1hFCCh7JtC84gKIYzPb7.
{"copyright_id":"0xf9fad140bb6628090bedc53d08b80b0a7fc5fd8c1b948208eeda01148a205e2f","isrc":"NLFL72300225","name":"Dead Limit - Evil Activities Remix","registered_at":"2026-06-29T03:57:18Z","spotify_id":"5sKt6JBx9YLHunfd8IVUit","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fad140bb6628090bedc53d08b80b0a7fc5fd8c1b948208eeda01148a205e2f. 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/5sKt6JBx9YLHunfd8IVUit.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/5sKt6JBx9YLHunfd8IVUit.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8642c554a8331a3222ee316bdd5e93ade77c7dda1448d85713d1a0bec1ea7b. 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/1HbH5Er03lllJnQuloK2Cn.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/1HbH5Er03lllJnQuloK2Cn.