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 0xa2e212820a041bdbbec055afc05c08548b1ead56c6992622ff31f25d77f1f702. 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/339e4a86-b3b4-4a90-ab05-d8cb5f254285.json and https://artists.proofprofile.net/proofs/artist/339e4a86-b3b4-4a90-ab05-d8cb5f254285.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 0x826572a378fb9173959b30a2381f1402d2bda9511b9c022c02d49f960c756f5f. 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/6s3lekI5yHpDaOWa3QTI8b.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/6s3lekI5yHpDaOWa3QTI8b.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb465f61921a72de9b235d55dd6a8f21b0aefd40e4cc9c1634673647400bd040. 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/5kvFBu6jDJMECOqmD7OwUx.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/5kvFBu6jDJMECOqmD7OwUx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d3a85405a4e7d22889d24f6bed868c34810eb34a370d94e8f300ae6469b701. 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/2qS7S9ramy7bLIiM71eXVX.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/2qS7S9ramy7bLIiM71eXVX.
{"copyright_id":"0xabe173a1504206ee67816e2bd4af78e6d9eab7afc5e676392c00d8f9658affe1","isrc":"QZS652238202","name":"Walk On Water (Wooli & Trivecta Remix)","registered_at":"2026-06-04T15:18:09Z","spotify_id":"0XlU2Ar7l9y52nveQb22Xd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe173a1504206ee67816e2bd4af78e6d9eab7afc5e676392c00d8f9658affe1. 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/0XlU2Ar7l9y52nveQb22Xd.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/0XlU2Ar7l9y52nveQb22Xd.
{"copyright_id":"0x52cccfc5a01832b08a08ed1efd2ccdd31f1655f31d7302294b5a579a34788f34","isrc":"QZMHL2235016","name":"Walk On Water (FrostTop Remix)","registered_at":"2026-06-23T03:53:40Z","spotify_id":"2eTygYmI1JuqEZ0jD87Yxf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cccfc5a01832b08a08ed1efd2ccdd31f1655f31d7302294b5a579a34788f34. 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/2eTygYmI1JuqEZ0jD87Yxf.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/2eTygYmI1JuqEZ0jD87Yxf.
{"copyright_id":"0x6c521c600c223a5f9f73ad9ebc59e489566235c19322ccee0242aff60f45f15b","isrc":"GBKPL2166114","name":"Only Reason","registered_at":"2026-06-06T02:17:51Z","spotify_id":"7ftFQzHnWKnXaiIPOr2gkt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c521c600c223a5f9f73ad9ebc59e489566235c19322ccee0242aff60f45f15b. 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/7ftFQzHnWKnXaiIPOr2gkt.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/7ftFQzHnWKnXaiIPOr2gkt.
{"copyright_id":"0x8067a7718d7ce13601f9a84e1bb802670bbb1f22ab88362c7f77a0670b707ddc","isrc":"GBEWA2104693","name":"Try (feat. RØRY) - Fairlane Remix","registered_at":"2026-06-19T13:53:48Z","spotify_id":"7FLXtDiBEwOOgk4soMbws7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8067a7718d7ce13601f9a84e1bb802670bbb1f22ab88362c7f77a0670b707ddc. 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/7FLXtDiBEwOOgk4soMbws7.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/7FLXtDiBEwOOgk4soMbws7.
{"copyright_id":"0x81211ff574188068d80bbe2e9b6cb71f49999ae71643eb531d8112d8a9fae728","isrc":"GBKPL2202589","name":"Only Reason - wevlth Remix","registered_at":"2026-06-21T02:10:14Z","spotify_id":"4MjHjJ0a5Oy7DKVxrsKm3Q","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81211ff574188068d80bbe2e9b6cb71f49999ae71643eb531d8112d8a9fae728. 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/4MjHjJ0a5Oy7DKVxrsKm3Q.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/4MjHjJ0a5Oy7DKVxrsKm3Q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735c94ed55cdeba8e750d79b1d3520274f66ad59682f458013971a74160f7136. 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/3bRhoxa9Qf82ik9yk9yaBk.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/3bRhoxa9Qf82ik9yk9yaBk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d3a85405a4e7d22889d24f6bed868c34810eb34a370d94e8f300ae6469b701. 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/5bKPdxNsbMy5p3BFfiN3ze.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/5bKPdxNsbMy5p3BFfiN3ze.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb465f61921a72de9b235d55dd6a8f21b0aefd40e4cc9c1634673647400bd040. 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/3ALL9iEPIYYuDqImrNvOiR.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/3ALL9iEPIYYuDqImrNvOiR.
{"copyright_id":"0x934d8b8393fa2411a23f45a4b563a8ea0ea9bec5e8ffa0d841a317f0679db527","isrc":"GBEWA2104696","name":"Try (feat. RØRY) - Zion. Remix","registered_at":"2026-06-27T08:17:15Z","spotify_id":"2zVlTAaOpAyhnpKs9IOkF0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934d8b8393fa2411a23f45a4b563a8ea0ea9bec5e8ffa0d841a317f0679db527. 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/2zVlTAaOpAyhnpKs9IOkF0.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/2zVlTAaOpAyhnpKs9IOkF0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d3a85405a4e7d22889d24f6bed868c34810eb34a370d94e8f300ae6469b701. 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/4Tq92xiz0Rm8y5vAxKk9L4.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/4Tq92xiz0Rm8y5vAxKk9L4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d3a85405a4e7d22889d24f6bed868c34810eb34a370d94e8f300ae6469b701. 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/6t5n511Q7RSNL9dr9lQpdZ.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/6t5n511Q7RSNL9dr9lQpdZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d3a85405a4e7d22889d24f6bed868c34810eb34a370d94e8f300ae6469b701. 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/5jZxNBHyU7qpAQSCXuQq78.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/5jZxNBHyU7qpAQSCXuQq78.
{"copyright_id":"0x8067a7718d7ce13601f9a84e1bb802670bbb1f22ab88362c7f77a0670b707ddc","isrc":"GBEWA2104693","name":"Try (feat. RØRY) - Fairlane Remix","registered_at":"2026-06-19T13:53:48Z","spotify_id":"2ll3MsOkmQD6rjIZJQCAQ7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8067a7718d7ce13601f9a84e1bb802670bbb1f22ab88362c7f77a0670b707ddc. 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/2ll3MsOkmQD6rjIZJQCAQ7.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/2ll3MsOkmQD6rjIZJQCAQ7.
{"copyright_id":"0x5f43e4957488badaab507a55d46aaa83c4fd7c5c34b700ea0c9d3faa94374763","isrc":"USA2P2028676","name":"Better Off Lonely","registered_at":"2026-06-04T16:03:37Z","spotify_id":"2K8Klz6aBDfKYHs0uShZxK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f43e4957488badaab507a55d46aaa83c4fd7c5c34b700ea0c9d3faa94374763. 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/2K8Klz6aBDfKYHs0uShZxK.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/2K8Klz6aBDfKYHs0uShZxK.
{"copyright_id":"0xd0a4c8175c4cab3477916efda526f8d702e26df7dfae0ecf72402f1a861ecd0d","isrc":"CA5KR2228109","name":"Walk On Water - Love Is Gone pt. 2","registered_at":"2026-06-05T04:27:44Z","spotify_id":"0jHePXMGqNAgOyt1e031Ja","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a4c8175c4cab3477916efda526f8d702e26df7dfae0ecf72402f1a861ecd0d. 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/0jHePXMGqNAgOyt1e031Ja.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/0jHePXMGqNAgOyt1e031Ja.