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 0xa153324cfd858b9c622aa308837cbaa4220be8152d439e9e3932de8e864d30fb. 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/d0f00efd-c102-48c7-9073-ec9564f7ab60.json and https://artists.proofprofile.net/proofs/artist/d0f00efd-c102-48c7-9073-ec9564f7ab60.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x93479dedede1fd1951f4bfb8c0612b292c72a730acda9f7d4b01425aeb978789","isrc":"USANG1923561","name":"All I Want For Christmas Is Love","registered_at":"2026-06-25T21:39:57Z","spotify_id":"39FH74JI6H6sb6USMA5mtR","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 0x93479dedede1fd1951f4bfb8c0612b292c72a730acda9f7d4b01425aeb978789. 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/39FH74JI6H6sb6USMA5mtR.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/39FH74JI6H6sb6USMA5mtR.
Summer Nights - From "Grease Live!" Music From The Television Event
Grease Live! (Music From The Television Event)
{"copyright_id":"0x7bb86f774b126318f4395a58fdae3afe41a45aa1b4abc2fcbae5e4ed85a60888","isrc":"USUG11600028","name":"Summer Nights - From \"Grease Live!\" Music From The Television Event","registered_at":"2026-06-05T08:49:51Z","spotify_id":"1McSXw7b1UEVqpoHP6ALPy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb86f774b126318f4395a58fdae3afe41a45aa1b4abc2fcbae5e4ed85a60888. 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/1McSXw7b1UEVqpoHP6ALPy.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/1McSXw7b1UEVqpoHP6ALPy.
Hopelessly Devoted To You - From "Grease Live!" Music From The Television Event
{"copyright_id":"0x4804aa093802b76f55ea8caf70bdcd2c0df3738ffe0f848f74e2893ae86da921","isrc":"USUG11600038","name":"Hopelessly Devoted To You - From \"Grease Live!\" Music From The Television Event","registered_at":"2026-06-05T12:42:11Z","spotify_id":"2uLtkcQqf8p1CIjgZLMYmL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4804aa093802b76f55ea8caf70bdcd2c0df3738ffe0f848f74e2893ae86da921. 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/2uLtkcQqf8p1CIjgZLMYmL.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/2uLtkcQqf8p1CIjgZLMYmL.
You're The One That I Want - From "Grease Live!" Music From The Television Event
{"copyright_id":"0x3a12fe758a649b5637fbf75caeee058e33c0aeeda4b45ab05743a7e0a55cc602","isrc":"USUG11600041","name":"You're The One That I Want - From \"Grease Live!\" Music From The Television Event","registered_at":"2026-06-05T21:48:20Z","spotify_id":"2A4t62zQT77u77tPkJQhwr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a12fe758a649b5637fbf75caeee058e33c0aeeda4b45ab05743a7e0a55cc602. 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/2A4t62zQT77u77tPkJQhwr.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/2A4t62zQT77u77tPkJQhwr.
We Go Together - From "Grease Live!" Music From The Television Event
{"copyright_id":"0x95cc7694f6e452bca4f9fe6ee4109ca35b6b3edaeea9678f8f2f1022ee3abb52","isrc":"USUG11600042","name":"We Go Together - From \"Grease Live!\" Music From The Television Event","registered_at":"2026-06-05T21:46:46Z","spotify_id":"5AOgBQYrNpZ9Z3qSujEIo8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cc7694f6e452bca4f9fe6ee4109ca35b6b3edaeea9678f8f2f1022ee3abb52. 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/5AOgBQYrNpZ9Z3qSujEIo8.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/5AOgBQYrNpZ9Z3qSujEIo8.
Royalties: Season 1 (Music from the Original Quibi Series)
Sister Christian / Just Like Paradise / Nothin' But A Good Time
{"copyright_id":"0xa4c2d9edb3868eb496b5efb79af7d7a0e915312157433111341bbcbe27d1b93b","isrc":"USNLR1200195","name":"Sister Christian / Just Like Paradise / Nothin' But A Good Time","registered_at":"2026-06-05T17:35:29Z","spotify_id":"2FPmRCjYFKAbrwkWK0lnLW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c2d9edb3868eb496b5efb79af7d7a0e915312157433111341bbcbe27d1b93b. 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/2FPmRCjYFKAbrwkWK0lnLW.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/2FPmRCjYFKAbrwkWK0lnLW.
{"copyright_id":"0x8f8a6b2dd8958925e4e076b0c133cde54342ef20d7294e39062cb751869c91f0","isrc":"USNLR1200196","name":"Juke Box Hero / I Love Rock 'n' Roll","registered_at":"2026-06-05T13:27:52Z","spotify_id":"1i2plv6grTiPqTuictnMvT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8a6b2dd8958925e4e076b0c133cde54342ef20d7294e39062cb751869c91f0. 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/1i2plv6grTiPqTuictnMvT.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/1i2plv6grTiPqTuictnMvT.
{"copyright_id":"0xf67405399700c86c3d2dc497d38ced03f137da9c9b0bcc42339648b6dbc29669","isrc":"USNLR1200198","name":"Waiting For A Girl Like You","registered_at":"2026-06-05T17:39:11Z","spotify_id":"1LZcspPDqy6bGsxEhtLJHO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67405399700c86c3d2dc497d38ced03f137da9c9b0bcc42339648b6dbc29669. 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/1LZcspPDqy6bGsxEhtLJHO.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/1LZcspPDqy6bGsxEhtLJHO.
{"copyright_id":"0x6893b69c1a053bfe4df3deff823b3a6ee29bfaa926fc0d38f5d963a0549f892d","isrc":"USNLR1200199","name":"More Than Words / Heaven","registered_at":"2026-06-05T09:19:00Z","spotify_id":"6FaZwntNknQHRFcMzr8DoF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6893b69c1a053bfe4df3deff823b3a6ee29bfaa926fc0d38f5d963a0549f892d. 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/6FaZwntNknQHRFcMzr8DoF.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/6FaZwntNknQHRFcMzr8DoF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91554b5c74f47a824d5526ac863b5c629430ea2a992804e87055392302c67a4a. 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/3lmGIW7BOpTgfpxUTHSY85.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/3lmGIW7BOpTgfpxUTHSY85.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c50e0579df81e7ae86314327403098e18313e88a1ea08672075630d27aa878. 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/30qMJqN4ArA8ruVz31aCcl.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/30qMJqN4ArA8ruVz31aCcl.
{"copyright_id":"0x35c96f2da90a315743d404301708cdd6fec8fc9ff7d414d34f2baf436d4456a4","isrc":"USNLR1200207","name":"Can't Fight This Feeling","registered_at":"2026-06-06T11:54:13Z","spotify_id":"5X5zx6kVkvtnCd3qWd4Alr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c96f2da90a315743d404301708cdd6fec8fc9ff7d414d34f2baf436d4456a4. 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/5X5zx6kVkvtnCd3qWd4Alr.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/5X5zx6kVkvtnCd3qWd4Alr.
{"copyright_id":"0x503588efb8722ca94d4303643807f3ca1feabb78bf71112f82f4309ed7a4c58f","isrc":"USNLR1200208","name":"Any Way You Want It","registered_at":"2026-06-05T09:19:22Z","spotify_id":"1wsOlxkvik5YP0TPEqGLcL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503588efb8722ca94d4303643807f3ca1feabb78bf71112f82f4309ed7a4c58f. 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/1wsOlxkvik5YP0TPEqGLcL.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/1wsOlxkvik5YP0TPEqGLcL.