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 0xf551223a868426be3dd5425167deef1aee0434f31bb44952cacdc14cef3e0af2. 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/c479c7f6-c19b-4dda-aadd-28e3aa8a3adc.json and https://artists.proofprofile.net/proofs/artist/c479c7f6-c19b-4dda-aadd-28e3aa8a3adc.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 0xdef1039d048f45f83e0acb40a31c4097520bc3c579829232b8203424e1947236. 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/39knzsFcBOEpv7dSGrIilV.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/39knzsFcBOEpv7dSGrIilV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091916ee496098851a3df123f645774c20bd031cfba528530061a6d4729f1fb4. 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/3MdGLgsPkpZIYddDfI2tyN.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/3MdGLgsPkpZIYddDfI2tyN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72da03b9088f1979658feb29fe2ef49ef0cf9c62f0f5a7423d0e8e84bb58e54. 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/2pFOOeunnbih8Wmk9bEdVF.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/2pFOOeunnbih8Wmk9bEdVF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec257b5c40ee96df684d9f988a81edd39b4acc55c8b8671a1d485755b942dde. 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/1sr9lbDDGIxmFK7wUdA1Z8.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/1sr9lbDDGIxmFK7wUdA1Z8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0507cb4dde17d4151059da3cafaeb4632d88cc7384e131a989cd82c83994d91d. 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/2xc8WSkjAp4xRGV6I1Aktb.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/2xc8WSkjAp4xRGV6I1Aktb.
{"copyright_id":"0x3bed27da82dce2a69d00b07ddbdbcbd0ae8d78ad2b6098e037ec1fb617f4b900","isrc":"ATI211003610","name":"Don't Worry","registered_at":"2026-06-07T02:02:46Z","spotify_id":"7tHpYiINE2pkRkuUeUkzSa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bed27da82dce2a69d00b07ddbdbcbd0ae8d78ad2b6098e037ec1fb617f4b900. 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/7tHpYiINE2pkRkuUeUkzSa.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/7tHpYiINE2pkRkuUeUkzSa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05894a5042b6bf8522f3a9cd4fb3351bc6c94edc225df9e02611ccac60edb146. 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/18r8ak8eIyiS9BI6JbS9w4.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/18r8ak8eIyiS9BI6JbS9w4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2da41d211071d77deedb17452395edff6575d2d6cf2b7666652852cd923f810. 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/57Nf7lJawfPHsm0IReS6md.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/57Nf7lJawfPHsm0IReS6md.
Fake Brotha (feat. D & Vido) - Doe Jones Yard Style Version
MTV Unplugged Kahedi Radio Show (Deluxe Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12119e69b4a1ddc858a0877058473f1037f88c6743bbfe52559f9da82b562ae. 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/07C9Hisa9t640vjUAXLZGO.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/07C9Hisa9t640vjUAXLZGO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44772c6169523c564cd734066e09e2f2010669777eea05c36d8da1ae8ca8f1b3. 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/6UexJAUsCRvIZgdvbcRCx6.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/6UexJAUsCRvIZgdvbcRCx6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12119e69b4a1ddc858a0877058473f1037f88c6743bbfe52559f9da82b562ae. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7vnaitiDKW0eNrMkbqwSp3.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/7vnaitiDKW0eNrMkbqwSp3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44772c6169523c564cd734066e09e2f2010669777eea05c36d8da1ae8ca8f1b3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2b7Gb365f3c3afVIEcpWiL.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/2b7Gb365f3c3afVIEcpWiL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613db71d3818978d9f941d06e60e824ea5517318b2e3cde3f343d3795439cf23. 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/05bKzvHSBWceSz50dnYBQt.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/05bKzvHSBWceSz50dnYBQt.
{"copyright_id":"0x5488938a2566ca415b3a511f155bf4f6a7a073a25305a944523d7b37570ab84e","isrc":"DEUM72113198","name":"Viel zu tun (feat. Gentleman)","registered_at":"2026-06-07T20:31:18Z","spotify_id":"5fEaMSCOtAkQEuIJpeMWvd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5488938a2566ca415b3a511f155bf4f6a7a073a25305a944523d7b37570ab84e. 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/5fEaMSCOtAkQEuIJpeMWvd.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/5fEaMSCOtAkQEuIJpeMWvd.