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 0xf85b55e0319a8db3406ccee9bc12d5d426dd714f86b19bd6c99623a8ce688149. 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/5a07a87b-388f-4f9e-aa1a-30c5f0129718.json and https://artists.proofprofile.net/proofs/artist/5a07a87b-388f-4f9e-aa1a-30c5f0129718.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 0xb4f572c0e2af149789d47ab7c0e2d84f5b67fbb0843a6cdc9bda5b12195f88d1. 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/7sqK6f8dHVx3Q1GjFrVyGl.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/7sqK6f8dHVx3Q1GjFrVyGl.
{"copyright_id":"0xb2b48844f2abbc654a5d6abb787eddd2e319da42ead0ab9c5d2d434ca3ded2d3","isrc":"USRH10652366","name":"Fallen Angel - Live","registered_at":"2026-06-22T16:30:37Z","spotify_id":"4TIfpOPy3d3jQdfeszAigv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b48844f2abbc654a5d6abb787eddd2e319da42ead0ab9c5d2d434ca3ded2d3. 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/4TIfpOPy3d3jQdfeszAigv.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/4TIfpOPy3d3jQdfeszAigv.
Jersey Beat: The Music Of Frankie Valli and The Four Seasons
{"copyright_id":"0x4f43f77d2c0214de3d41750a54a66392c8ccd8c4459af96aaefafe220a048d9c","isrc":"USRH10720955","name":"Fallen Angel - 2007 Remaster","registered_at":"2026-06-26T16:39:26Z","spotify_id":"2CVKoQuXUdrzDjEJUvQtMx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f43f77d2c0214de3d41750a54a66392c8ccd8c4459af96aaefafe220a048d9c. 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/2CVKoQuXUdrzDjEJUvQtMx.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/2CVKoQuXUdrzDjEJUvQtMx.
The Very Best of Frankie Valli & The 4 Seasons
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4f82fd354b95134076f1dda60c4e92db967fa87382709a44e4383604988249. 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/6ft9PAgNOjmZ2kFVP7LGqb.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/6ft9PAgNOjmZ2kFVP7LGqb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce0a2ed409f8700655135c69d25fe5397c1dbea94b940c95715bb42d892862a. 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/11ZnVkr0UJiTM14qAa8MW1.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/11ZnVkr0UJiTM14qAa8MW1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14d494e601056e19f855f281c99494c90535e3910626b6a3b156df3a44dd527. 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/1hQFF33xi8ruavZNyovtUN.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/1hQFF33xi8ruavZNyovtUN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f572c0e2af149789d47ab7c0e2d84f5b67fbb0843a6cdc9bda5b12195f88d1. 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/50XI3vBHDmsM3dgdN25NIz.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/50XI3vBHDmsM3dgdN25NIz.
{"copyright_id":"0x736e048372c0f3f2c9e2608aed76809a37b863ce9fbea6eb19a39cf62a2ef57b","isrc":"USRH10651629","name":"December, 1963 (Oh What a Night!)","registered_at":"2026-06-24T08:49:54Z","spotify_id":"1YM5uL0OGe4LwRB3jMxjra","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736e048372c0f3f2c9e2608aed76809a37b863ce9fbea6eb19a39cf62a2ef57b. 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/1YM5uL0OGe4LwRB3jMxjra.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/1YM5uL0OGe4LwRB3jMxjra.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f572c0e2af149789d47ab7c0e2d84f5b67fbb0843a6cdc9bda5b12195f88d1. 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/5zhtZuF9V05PLmAWfXoIg3.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/5zhtZuF9V05PLmAWfXoIg3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14d494e601056e19f855f281c99494c90535e3910626b6a3b156df3a44dd527. 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/6sa2jWaT8EtCsJ1lnuIiHf.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/6sa2jWaT8EtCsJ1lnuIiHf.
{"copyright_id":"0x3a8f7120b0191084ec6f43a76879d4cfd59bba7b7c548927330d123d12e88f8f","isrc":"USRH10720888","name":"Walk Like a Man - Remastered 2007","registered_at":"2026-06-24T10:48:42Z","spotify_id":"1MR0aupJgzpOtMyFoGuM5b","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8f7120b0191084ec6f43a76879d4cfd59bba7b7c548927330d123d12e88f8f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1MR0aupJgzpOtMyFoGuM5b.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/1MR0aupJgzpOtMyFoGuM5b.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f572c0e2af149789d47ab7c0e2d84f5b67fbb0843a6cdc9bda5b12195f88d1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7JqXCQhNo1ZDkIy9nzBwSC.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/7JqXCQhNo1ZDkIy9nzBwSC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14d494e601056e19f855f281c99494c90535e3910626b6a3b156df3a44dd527. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6EtYG6enP2WW4HzlNn6bQJ.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/6EtYG6enP2WW4HzlNn6bQJ.