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 0x2207b817d672d51d766745927ddfed7e93599e4cc2fb682f87e4e89ed487dbda. 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/7d33594f-9af2-4525-8241-8bdbcdb60d66.json and https://artists.proofprofile.net/proofs/artist/7d33594f-9af2-4525-8241-8bdbcdb60d66.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 0xb9228e433621d7ac6407767cfa7d4235b178fc7ad17676e657254f8d023cf4ac. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3UAkL6UoAoiH5aigMAnS8O.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/3UAkL6UoAoiH5aigMAnS8O.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7814021d4e278810525eba069ceea568c8a95040d77c2aeefa6ce184e6b42054. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/34zYlacSOlVD6I5jf5vdWY.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/34zYlacSOlVD6I5jf5vdWY.
{"copyright_id":"0x0c24e8807330053bd5dbdba978782043ba73514cbcb681e5175c7c4daa60f361","isrc":"QZK6H2316717","name":"Yekshanbe (Freestyle)","registered_at":"2026-06-29T10:08:41Z","spotify_id":"1otCVByVlogLxp0bDjoaSk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c24e8807330053bd5dbdba978782043ba73514cbcb681e5175c7c4daa60f361. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1otCVByVlogLxp0bDjoaSk.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/1otCVByVlogLxp0bDjoaSk.
{"copyright_id":"0xa01cda370255b7b28ca3e1afe61120b4923c66e4308c9bc88da642b7c51b1ac0","isrc":"US23A1554360","name":"Plugged In Season Finale 2","registered_at":"2026-06-06T17:13:35Z","spotify_id":"7INlDyDO9Hi5D4bHHIe3ds","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01cda370255b7b28ca3e1afe61120b4923c66e4308c9bc88da642b7c51b1ac0. 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/7INlDyDO9Hi5D4bHHIe3ds.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/7INlDyDO9Hi5D4bHHIe3ds.
021kid x Fumez The Engineer - Plugged In
021Kid x Fumez The Engineer - Plugged In
{"copyright_id":"0x4a334ecd3463f9552b8d31a257f1877ce4928eb1d68afc301e27ff606083b794","isrc":"US23A1552283","name":"021kid x Fumez The Engineer - Plugged In","registered_at":"2026-06-10T04:01:39Z","spotify_id":"1BKmz0JBJR0izH9EDWywTj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a334ecd3463f9552b8d31a257f1877ce4928eb1d68afc301e27ff606083b794. 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/1BKmz0JBJR0izH9EDWywTj.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/1BKmz0JBJR0izH9EDWywTj.
{"copyright_id":"0x93c2cc13fa67cf8dab8ca4bf99ab7c58b2a18babcd501105ebe10db17efeeaab","isrc":"USZXT2453489","name":"Murdaside - PersianMix","registered_at":"2026-06-23T14:41:51Z","spotify_id":"28hxxlR4yD4EpSzLFTGWLP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c2cc13fa67cf8dab8ca4bf99ab7c58b2a18babcd501105ebe10db17efeeaab. 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/28hxxlR4yD4EpSzLFTGWLP.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/28hxxlR4yD4EpSzLFTGWLP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd634c07266506b37656f83d4d037f646e08ee9495f4624054a04296b302cd508. 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/4ZPsGIVPhj3sMdKV6b3ioT.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/4ZPsGIVPhj3sMdKV6b3ioT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf56c9e61d3b2b4aa83511761c15226954f1600539dc5b2dc62c593b2a6674b. 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/6OZUOrJ15PSxTwxDRzWdST.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/6OZUOrJ15PSxTwxDRzWdST.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3847be3e96869b3b74fe4a6665222dd8937220222e9be536884f67f38b003b. 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/19sx7I1xfy8NV23nHh2bKZ.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/19sx7I1xfy8NV23nHh2bKZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e17445a8c25d30529b4a0e27c91ddd5393b1006227f0e3a6676620603ac3e3. 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/7GOcKGw04pPhsAFjSbXl0v.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/7GOcKGw04pPhsAFjSbXl0v.
{"copyright_id":"0xb60bf6942d050555c099cbd1b3e1447ed4ce6f937b3693caa7a24f39cedbc3b4","isrc":"DEPI82215118","name":"Aklil Soranj","registered_at":"2026-06-10T19:56:54Z","spotify_id":"4OBQJSKU7rVqLBV6DSXwIU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60bf6942d050555c099cbd1b3e1447ed4ce6f937b3693caa7a24f39cedbc3b4. 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/4OBQJSKU7rVqLBV6DSXwIU.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/4OBQJSKU7rVqLBV6DSXwIU.