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 0x19659541e0385ef518e7f781e4479eb1a6e4ad897f5acc36790d55019bc8ae59. 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/20c9bf28-12d5-4ca2-bbb3-d6a9fdd04a94.json and https://artists.proofprofile.net/proofs/artist/20c9bf28-12d5-4ca2-bbb3-d6a9fdd04a94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xc53573bf270d486a904bfcbf5e4ee69d89a742565fa5781c85af7d1cd062fba7","isrc":"USUM71016378","name":"Pop The Trunk","registered_at":"2026-06-01T19:48:30Z","spotify_id":"25G8NNFBnjXgWCGtyPa1Ax","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 0xc53573bf270d486a904bfcbf5e4ee69d89a742565fa5781c85af7d1cd062fba7. 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/25G8NNFBnjXgWCGtyPa1Ax.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/25G8NNFBnjXgWCGtyPa1Ax.
{"copyright_id":"0x39e9167fab0912b3ada1459af07900fd5c8f2a092dfc85f61816c69f5c6194c0","isrc":"USZEG1502479","name":"Too Turnt Up (feat. Yelawolf)","registered_at":"2026-06-07T06:28:38Z","spotify_id":"6exNjYWlfZCzPK9QcZhEGS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e9167fab0912b3ada1459af07900fd5c8f2a092dfc85f61816c69f5c6194c0. 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/6exNjYWlfZCzPK9QcZhEGS.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/6exNjYWlfZCzPK9QcZhEGS.
Give The Drummer Some (Explicit Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fd8ede094b093ee3b0e983c7f1b778d09b1f9555ef6714fba89a09163c12ac. 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/2YQNgRSNwKC1rKwo3nPIXz.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/2YQNgRSNwKC1rKwo3nPIXz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fd8ede094b093ee3b0e983c7f1b778d09b1f9555ef6714fba89a09163c12ac. 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/0vJ3WZ0Q6AdntTxQ384JQN.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/0vJ3WZ0Q6AdntTxQ384JQN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb83ac2a4705667714fc40791156ed9527bc2937e4a1977428616d14d570a385. 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/0WXq5PohrDKY209uBmuNjz.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/0WXq5PohrDKY209uBmuNjz.
1Train (feat. Kendrick Lamar, Joey Bada$$, Yelawolf, Danny Brown, Action Bronson & Big K.R.I.T.)
{"copyright_id":"0x0cbd72a210c97e6e1559d10e84cea429a1f9830c90acb155395473ca9f6bcf22","isrc":"USRC11201455","name":"1Train (feat. Kendrick Lamar, Joey Bada$$, Yelawolf, Danny Brown, Action Bronson & Big K.R.I.T.)","registered_at":"2026-06-01T10:34:42Z","spotify_id":"1eLU27PPFxBhbp1CBjPh9J","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbd72a210c97e6e1559d10e84cea429a1f9830c90acb155395473ca9f6bcf22. 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/1eLU27PPFxBhbp1CBjPh9J.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/1eLU27PPFxBhbp1CBjPh9J.
S**t Done Got Real (feat. Ace Hood, Yelawolf)
{"copyright_id":"0x061478cc107aecafb459103944f0ead4a899899f93383fdc3d2bb49c41ab0d89","isrc":"USSM11303982","name":"Gun Plus A Mask (feat. Yelawolf)","registered_at":"2026-06-06T15:26:38Z","spotify_id":"4sTi4TTYqAYSaMbN243qKi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061478cc107aecafb459103944f0ead4a899899f93383fdc3d2bb49c41ab0d89. 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/4sTi4TTYqAYSaMbN243qKi.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/4sTi4TTYqAYSaMbN243qKi.
{"copyright_id":"0x061478cc107aecafb459103944f0ead4a899899f93383fdc3d2bb49c41ab0d89","isrc":"USSM11303982","name":"Gun Plus A Mask (feat. Yelawolf)","registered_at":"2026-06-06T15:26:38Z","spotify_id":"1uNjugVwktGnCi5WVwbsUy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061478cc107aecafb459103944f0ead4a899899f93383fdc3d2bb49c41ab0d89. 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/1uNjugVwktGnCi5WVwbsUy.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/1uNjugVwktGnCi5WVwbsUy.
{"copyright_id":"0x54b6d45b935e8993de3d9a2cddc445431f2b65a1563d9d4c6c7f5d6bbe363b43","isrc":"USDPK2300185","name":"John Linen (feat. Yelawolf) - Live","registered_at":"2026-06-06T03:51:17Z","spotify_id":"1RLmjFJwKEs8FW7P4jM6cb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b6d45b935e8993de3d9a2cddc445431f2b65a1563d9d4c6c7f5d6bbe363b43. 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/1RLmjFJwKEs8FW7P4jM6cb.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/1RLmjFJwKEs8FW7P4jM6cb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf039aa3512e4e954b2d1f8b6c2370cc1456bd10baf2c18d7c35b32b28820aa. 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/1hPWch82FFxW4FBVyE2Za8.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/1hPWch82FFxW4FBVyE2Za8.
{"copyright_id":"0x43dbd055c34fdea409921032d999796bcd9662b099fb7524b79d2bf1b9a434fe","isrc":"USUM71613678","name":"Shadows (feat. Joshua Hedley)","registered_at":"2026-06-05T12:11:34Z","spotify_id":"40ZVWDcwlRuLnm4eC8MJGa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dbd055c34fdea409921032d999796bcd9662b099fb7524b79d2bf1b9a434fe. 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/40ZVWDcwlRuLnm4eC8MJGa.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/40ZVWDcwlRuLnm4eC8MJGa.
{"copyright_id":"0x56f0daa65d2ef3d2fb6c34e098e9fe8888fe757f24661c794e8b04f2163f9422","isrc":"USUM71707251","name":"Get Mine (feat. Kid Rock)","registered_at":"2026-06-05T16:31:26Z","spotify_id":"03oy2P9nPXzEKWfpfhDAyH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f0daa65d2ef3d2fb6c34e098e9fe8888fe757f24661c794e8b04f2163f9422. 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/03oy2P9nPXzEKWfpfhDAyH.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/03oy2P9nPXzEKWfpfhDAyH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c01765a7509c3e52314c503141360e72883c3660a0d7832471f7181609cdf0. 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/3xlCpBTlvpSYeQJns5ikvm.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/3xlCpBTlvpSYeQJns5ikvm.
{"copyright_id":"0x6efea200f6b01d51d79fd3b37c59dbb60f6fa9318d177a9b5f2f8e970998f25f","isrc":"USUM71606381","name":"Ride Or Die","registered_at":"2026-06-07T13:02:25Z","spotify_id":"4srNuNq7qRcGvDJ0jtGTIf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efea200f6b01d51d79fd3b37c59dbb60f6fa9318d177a9b5f2f8e970998f25f. 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/4srNuNq7qRcGvDJ0jtGTIf.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/4srNuNq7qRcGvDJ0jtGTIf.
{"copyright_id":"0x7ca8c194be690cf9459b51b5727324f68d6d5a68b652a95998975c82768fe9fa","isrc":"USUM71606383","name":"Struggle Speaks (Interlude)","registered_at":"2026-06-11T06:19:15Z","spotify_id":"7tD9nrEIymDTkQzmxrGhwb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca8c194be690cf9459b51b5727324f68d6d5a68b652a95998975c82768fe9fa. 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/7tD9nrEIymDTkQzmxrGhwb.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/7tD9nrEIymDTkQzmxrGhwb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b68affc9e149a2d74fe42302a902f8b1654c529fa49705b314bcbfa7fad16d2. 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/32HzgWf70ShWzUgV9cAlQ7.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/32HzgWf70ShWzUgV9cAlQ7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666a64d9145c431149d9023e7a5c864b4bda43c362ce7cb5cb8b17d78d61cb74. 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/32Oyh5X1e8m1Ekq5s7KYEi.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/32Oyh5X1e8m1Ekq5s7KYEi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8172b4842b2527b72322a70f6756ca8d8853523c0f295f95fa998d325ec474. 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/1FW8CoRXyRFXk17f5pvQrD.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/1FW8CoRXyRFXk17f5pvQrD.
{"copyright_id":"0x92aaa2bde1bc280c5b87fbbdc2a870f99715086e9f27a34474b88203d69cbabf","isrc":"USUM71607674","name":"Row Your Boat","registered_at":"2026-06-04T09:30:04Z","spotify_id":"02OBEsgNfL0u9AGDUOIsDU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92aaa2bde1bc280c5b87fbbdc2a870f99715086e9f27a34474b88203d69cbabf. 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/02OBEsgNfL0u9AGDUOIsDU.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/02OBEsgNfL0u9AGDUOIsDU.