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 0x5f1957debc5b0d7d36e4be6d7532bc4679c37e104fbdc427659482520bd64199. 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/84652342-2cd3-4fbe-90fd-e7918f609b33.json and https://artists.proofprofile.net/proofs/artist/84652342-2cd3-4fbe-90fd-e7918f609b33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x3e3b160b9b2d978fffe1ae1a41b5fcdf79713ec149e80a346359b21992fb4047","isrc":"USAT21901890","name":"Rebound (feat. Joey Bada$$)","registered_at":"2026-06-28T22:51:41Z","spotify_id":"32HMtqbJcmTFgkGW3MoyDL","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3b160b9b2d978fffe1ae1a41b5fcdf79713ec149e80a346359b21992fb4047. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/32HMtqbJcmTFgkGW3MoyDL.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/32HMtqbJcmTFgkGW3MoyDL.
{"copyright_id":"0x3e3b160b9b2d978fffe1ae1a41b5fcdf79713ec149e80a346359b21992fb4047","isrc":"USAT21901890","name":"Rebound (feat. Joey Bada$$)","registered_at":"2026-06-28T22:51:41Z","spotify_id":"31WDH2ZTuXtcOjGwDxZnY3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3b160b9b2d978fffe1ae1a41b5fcdf79713ec149e80a346359b21992fb4047. 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/31WDH2ZTuXtcOjGwDxZnY3.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/31WDH2ZTuXtcOjGwDxZnY3.
Me vs. Us - Afrojack x Jewelz & Sparks Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6d84bf023e2acf9dc20d7a66e7380154b3ca073a67a7207a742907205852b0. 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/7A6UIxi15awyiEbYbMF06V.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/7A6UIxi15awyiEbYbMF06V.
Ain’t A Lonely Christmas Song [from Still Home For The Holidays (An R&B Christmas Album)]
This Was Supposed To Be Our Wedding Song
Dream Hotel - Reeperbahn Festival Collide
Standing Up To The Wind - Reeperbahn Festival Collide
ain't a lonely christmas song (feat. Tayla Parx)
{"copyright_id":"0xac6a75ce0bc985e6f03e58f5e618ea55fff239de04a0c775326a4531c12dad3e","isrc":"USRC12102949","name":"ain't a lonely christmas song (feat. Tayla Parx)","registered_at":"2026-06-08T02:05:33Z","spotify_id":"1WSOncoBvbmkvujGKVBQKu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6a75ce0bc985e6f03e58f5e618ea55fff239de04a0c775326a4531c12dad3e. 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/1WSOncoBvbmkvujGKVBQKu.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/1WSOncoBvbmkvujGKVBQKu.
Queen Charlotte: A Bridgerton Story (Covers from the Netflix Series)
{"copyright_id":"0x1cde1e7db3277282f15f4a09c798d7cca489296c26c7d8cf9700649c120ed88c","isrc":"QZ8BZ2305121","name":"A Feeling I've Never Been","registered_at":"2026-06-04T09:23:06Z","spotify_id":"6GheQyWRdAQAtXa4PMNNNG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cde1e7db3277282f15f4a09c798d7cca489296c26c7d8cf9700649c120ed88c. 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/6GheQyWRdAQAtXa4PMNNNG.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/6GheQyWRdAQAtXa4PMNNNG.
{"copyright_id":"0xbc9d90d8cab18fe6cf262fbcb201da0674b530562d46d4ddf385ae6186f28e11","isrc":"GBEXH2400021","name":"Set The Roof - Mixed","registered_at":"2026-06-19T08:27:54Z","spotify_id":"5biIIzZ8rtR5zGZeohRGRp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9d90d8cab18fe6cf262fbcb201da0674b530562d46d4ddf385ae6186f28e11. 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/5biIIzZ8rtR5zGZeohRGRp.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/5biIIzZ8rtR5zGZeohRGRp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af87d65eb8bbb99196a46f72828a7d4dba39e6916461ceaa0b9885d731062d3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4NYJK2dlkLumZIIl0u9EeV.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/4NYJK2dlkLumZIIl0u9EeV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af4ba2b854c08043b003e366ee2ee5e4daa7946191ad2fd549f2e8c0274f6a7. 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/6mk3JwUEBSgRv2Temy3I8v.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/6mk3JwUEBSgRv2Temy3I8v.
Love, Victor: Season 2 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0234e2a5f12a6a5f5465bc012ef069dbd515e1b13c7d9ea51e5152fc6aedac9e. 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/2sDjAcLzPYZYUYOtfk5R4x.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/2sDjAcLzPYZYUYOtfk5R4x.
{"copyright_id":"0xbc9d90d8cab18fe6cf262fbcb201da0674b530562d46d4ddf385ae6186f28e11","isrc":"GBEXH2400021","name":"Set The Roof - Mixed","registered_at":"2026-06-19T08:27:54Z","spotify_id":"2IP6vR4J88yKljpPbl2JEa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9d90d8cab18fe6cf262fbcb201da0674b530562d46d4ddf385ae6186f28e11. 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/2IP6vR4J88yKljpPbl2JEa.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/2IP6vR4J88yKljpPbl2JEa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca52aa6530b5c76ee1f5f39458aab1469ec92a4e310f14f62916ed4625d5391. 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/02yRHV9Cgk8CUS2fx9lKVC.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/02yRHV9Cgk8CUS2fx9lKVC.
{"copyright_id":"0x34544c74c607dba5ae300e473e535b36493c5610b251b6cbea987d2cccd4dc31","isrc":"USAT21700168","name":"YOUR EYES (feat. Tayla Parx)","registered_at":"2026-06-21T00:27:30Z","spotify_id":"5RJizYf3glrHlux3XymB2r","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34544c74c607dba5ae300e473e535b36493c5610b251b6cbea987d2cccd4dc31. 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/5RJizYf3glrHlux3XymB2r.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/5RJizYf3glrHlux3XymB2r.
Spinning Gold (Music From the Motion Picture)