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 0xc89caef1272f10c3ded63479eafeb4f95cf9dd7e8007155da65939e11c0440c6. 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/5ee2a384-7386-4b92-b00a-1ad30b071a1b.json and https://artists.proofprofile.net/proofs/artist/5ee2a384-7386-4b92-b00a-1ad30b071a1b.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 0x383f98499dd9a8a449b0653ccdd434985c8a85ac32d0c5fbe3bce5951ffb14ba. 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/5WfMg2QraqveYpt5pNJD6z.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/5WfMg2QraqveYpt5pNJD6z.
{"copyright_id":"0xed5c55b98fdc65a51037a4c81cecfdf7d3d88c5b9d59bc91129b22023cd38a03","isrc":"USWL12100098","name":"Tumbados En Miami","registered_at":"2026-06-05T06:13:05Z","spotify_id":"4jKobC3YJgvBb7vzvLjgUW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5c55b98fdc65a51037a4c81cecfdf7d3d88c5b9d59bc91129b22023cd38a03. 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/4jKobC3YJgvBb7vzvLjgUW.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/4jKobC3YJgvBb7vzvLjgUW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406bb1d05dfa51f8bb3e6b2333169eca035f0a1b0c704361b2e49a443ee0a04b. 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/7xQfWJvPBt11zc6eOMDlmo.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/7xQfWJvPBt11zc6eOMDlmo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e97cc4acbbefc6200c8339bc8bde197b04087600c508a425b15e8190b16bbb9. 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/1BgsJvvetyWgd3UupELZ51.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/1BgsJvvetyWgd3UupELZ51.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3f1cf9a97c58502381c022f154c227864896b9746a9bd3a17bca003e06a3ef. 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/2sAXzDzH42hjqrVKkdP4hi.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/2sAXzDzH42hjqrVKkdP4hi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282fdbdd9dd0e35d560c56b9cb577219945afbcf90a8cd6ab77cf0186771039d. 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/6FeTled691bl3j2Npf7oo8.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/6FeTled691bl3j2Npf7oo8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406bb1d05dfa51f8bb3e6b2333169eca035f0a1b0c704361b2e49a443ee0a04b. 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/13N3Nd6nQMe5yDgo9wzUuV.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/13N3Nd6nQMe5yDgo9wzUuV.
Low Key (feat. Tyga) - Play N Skillz Remix
Low Key (feat. Tyga) [Play N Skillz Remix]
{"copyright_id":"0x867a2875fbc9a6c367fc7ec18bfda933e3e66dba0ad2cdfd82025ee33316275a","isrc":"USAT21901904","name":"Low Key (feat. Tyga) - Play N Skillz Remix","registered_at":"2026-06-21T20:30:26Z","spotify_id":"1r3Ph5k2PLnQgXLhtk9noD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867a2875fbc9a6c367fc7ec18bfda933e3e66dba0ad2cdfd82025ee33316275a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1r3Ph5k2PLnQgXLhtk9noD.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/1r3Ph5k2PLnQgXLhtk9noD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe340be6e96929a861a25d37ac885c1ac0e1be8314d7e1a3c6331be49d03c898d. 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/01lcS8iBf59lm1oPB2PhtA.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/01lcS8iBf59lm1oPB2PhtA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78d3b9d1969c4e97368454f138402854c12f32330a06699d9224fa158791283. 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/4uZA7hxe5WZiQpOAu9lerj.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/4uZA7hxe5WZiQpOAu9lerj.
{"copyright_id":"0x5e1cc906504a97d8d8cae96c9b090a83c4ef3d6e0743c7612d3d77f8ce01d6d1","isrc":"QMFMF2102932","name":"Nueva Vida","registered_at":"2026-06-20T22:59:16Z","spotify_id":"79aWtrsYPuVbqCZkCt4hp5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1cc906504a97d8d8cae96c9b090a83c4ef3d6e0743c7612d3d77f8ce01d6d1. 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/79aWtrsYPuVbqCZkCt4hp5.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/79aWtrsYPuVbqCZkCt4hp5.
DALE CINTURA (Kuliki) (feat. Steve Aoki, Kiko El Crazy & Toño Rosario)
{"copyright_id":"0x4e335c9f14e739ab0b2e1b64e481755ac2fdde6bd463ed5776c40c65a35e32c8","isrc":"USSD12000168","name":"DALE CINTURA (Kuliki) (feat. Steve Aoki, Kiko El Crazy & Toño Rosario)","registered_at":"2026-06-05T08:14:25Z","spotify_id":"7vpXKawR8GEUAz6FYPhbbO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e335c9f14e739ab0b2e1b64e481755ac2fdde6bd463ed5776c40c65a35e32c8. 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/7vpXKawR8GEUAz6FYPhbbO.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/7vpXKawR8GEUAz6FYPhbbO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c812ebdf6add0b1d8901c3e20c9fdd07251d84b1569847c37576139bc849a31. 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/3SDvcxPcU7BlV1dAne4dWM.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/3SDvcxPcU7BlV1dAne4dWM.
{"copyright_id":"0xbc5f234bb628d20f886438337b278b6f4ae792fc47f0bdb3efbeb013efbc9adb","isrc":"USNPW2300605","name":"Luv U Down","registered_at":"2026-06-10T16:17:26Z","spotify_id":"6IoK6E07Aya02GOjr5CKmW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5f234bb628d20f886438337b278b6f4ae792fc47f0bdb3efbeb013efbc9adb. 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/6IoK6E07Aya02GOjr5CKmW.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/6IoK6E07Aya02GOjr5CKmW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35f258160e58c54b4475d6fadcac30440a53fa81ee908c74feb68dce058a367. 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/7nwAiiKg3fpldmwxa8Yc0W.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/7nwAiiKg3fpldmwxa8Yc0W.
{"copyright_id":"0x5b79ea9c0120de2f9b2a7fa49058877072a191f18ba5b3b29f94a272a7de79f4","isrc":"USNPW2300703","name":"Somos Latinos","registered_at":"2026-06-04T07:04:59Z","spotify_id":"2zpKttIJiZViZO3Q6rMYZx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b79ea9c0120de2f9b2a7fa49058877072a191f18ba5b3b29f94a272a7de79f4. 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/2zpKttIJiZViZO3Q6rMYZx.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/2zpKttIJiZViZO3Q6rMYZx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c261be38530eece055f5e1134f5691266a1903ef8d2292cf84147262ded177e. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:26:39Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/11lLYtZgjhKP4ZPEYXyAXk.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/11lLYtZgjhKP4ZPEYXyAXk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66bbed02e54119051b3472c169c37d55aa190e5ca9023b08068be9cd9805e73. 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/43wCZaG3s2ZAyoe51svKQz.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/43wCZaG3s2ZAyoe51svKQz.