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 0x0782ed7497774e37a7ec32bed4f9e1add73beaf334fa4b9742b4a7c30191a51a. 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/587838aa-55a4-44ea-8106-fa04823a7aae.json and https://artists.proofprofile.net/proofs/artist/587838aa-55a4-44ea-8106-fa04823a7aae.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 0xc8dc9799c7ba326a709f7ba94681d38e73c1b59746a0dcad32531e8661d295e4. 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/4eLiH0ZhfgXv3r8vU6xchS.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/4eLiH0ZhfgXv3r8vU6xchS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a91fd8a4c52cd35f10e98d225a156a2908f47a0981bd868df8166ba2746e9d3. 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/4hvPMOKAxWxAbFxWrIDUVL.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/4hvPMOKAxWxAbFxWrIDUVL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a91fd8a4c52cd35f10e98d225a156a2908f47a0981bd868df8166ba2746e9d3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4nqL6GmnVYl9x7sD5pj3ie.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/4nqL6GmnVYl9x7sD5pj3ie.
{"copyright_id":"0xeb4ffed05ac7e4b3e3d750d776b38a37682dbb76ebd8176230a361d65ff8e2fe","isrc":"QZW9K2280482","name":"Tequila Blue","registered_at":"2026-06-11T20:16:50Z","spotify_id":"14z89rFfF0Sc5ZibvZAgkg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4ffed05ac7e4b3e3d750d776b38a37682dbb76ebd8176230a361d65ff8e2fe. 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/14z89rFfF0Sc5ZibvZAgkg.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/14z89rFfF0Sc5ZibvZAgkg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f7d59ccbadfdf623d2f0cb8d7550f872e4067b33c6ad22a6badc0ae286e919. 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/7hA853XE6OThHzTwe48J88.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/7hA853XE6OThHzTwe48J88.
{"copyright_id":"0x78489ad3e9f751ed186dab5c8d8b5447c0aaa817266550633edbac21f7ddcf56","isrc":"QZW9L2291206","name":"Moda Pasajera","registered_at":"2026-06-21T10:26:44Z","spotify_id":"55ZVkgWyv4WmU3dQwP7ciw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78489ad3e9f751ed186dab5c8d8b5447c0aaa817266550633edbac21f7ddcf56. 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/55ZVkgWyv4WmU3dQwP7ciw.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/55ZVkgWyv4WmU3dQwP7ciw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78489ad3e9f751ed186dab5c8d8b5447c0aaa817266550633edbac21f7ddcf56. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0I1TuV5vdtWs3G1U6WuGVU.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/0I1TuV5vdtWs3G1U6WuGVU.
{"copyright_id":"0x71e76240fdaa27f38f7123e96e9c1da64aa15adbd5862ed58cbc5be01f57942f","isrc":"US7VG2338619","name":"Si las Miradas","registered_at":"2026-06-09T20:56:29Z","spotify_id":"47gm6snclehrVQyhj4xyzn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e76240fdaa27f38f7123e96e9c1da64aa15adbd5862ed58cbc5be01f57942f. 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/47gm6snclehrVQyhj4xyzn.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/47gm6snclehrVQyhj4xyzn.
{"copyright_id":"0x71e76240fdaa27f38f7123e96e9c1da64aa15adbd5862ed58cbc5be01f57942f","isrc":"US7VG2338619","name":"Si Las Miradas","registered_at":"2026-06-09T20:56:29Z","spotify_id":"1Me1tUdxNQxcyz7VkYRAVQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e76240fdaa27f38f7123e96e9c1da64aa15adbd5862ed58cbc5be01f57942f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Me1tUdxNQxcyz7VkYRAVQ.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/1Me1tUdxNQxcyz7VkYRAVQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc136850a0c5e23af37732b9b69a7b9b35be855525c7087d91e5a00751346b806. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0wVSJIh7cyUpUMxowS6bgr.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/0wVSJIh7cyUpUMxowS6bgr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc136850a0c5e23af37732b9b69a7b9b35be855525c7087d91e5a00751346b806. 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/3eizGq9anaEgbQCSSMMZg4.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/3eizGq9anaEgbQCSSMMZg4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef64ab86954960db44d775978f6cb2a4677a3ac550c3cefca98aa0e1b39ee350. 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/78BL7Z2MI4r2f2UKMD1zF1.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/78BL7Z2MI4r2f2UKMD1zF1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef64ab86954960db44d775978f6cb2a4677a3ac550c3cefca98aa0e1b39ee350. 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/2UKDqKvx2JLErDypl3MmoC.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/2UKDqKvx2JLErDypl3MmoC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abb8e371a231af2b63619b020a5eee22e016ff5adc45d5650a282f3c11d3f20. 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/2DlkqcwM2ro0lupMbyzt9w.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/2DlkqcwM2ro0lupMbyzt9w.
{"copyright_id":"0x9e7dbab2103eca55b7c42793473555d9aaff4dcc8b15218200ac2793be817d89","isrc":"QZNJZ2367061","name":"Puro K Te Kiero","registered_at":"2026-06-28T21:07:33Z","spotify_id":"5gsLvUygU0hiFiVLlgYx2g","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7dbab2103eca55b7c42793473555d9aaff4dcc8b15218200ac2793be817d89. 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/5gsLvUygU0hiFiVLlgYx2g.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/5gsLvUygU0hiFiVLlgYx2g.
Everything I Do / Quisiera Poder Olvidarme de Ti
{"copyright_id":"0x33644bc07d0ecd852f2f885f8154ba0a562b3e90cf4f47828c64bb0461c90f79","isrc":"QZMZ92372235","name":"Quien Invento el Amor","registered_at":"2026-06-08T22:42:52Z","spotify_id":"0RmamHdg8sjrBqnRspB8Pi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33644bc07d0ecd852f2f885f8154ba0a562b3e90cf4f47828c64bb0461c90f79. 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/0RmamHdg8sjrBqnRspB8Pi.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/0RmamHdg8sjrBqnRspB8Pi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47529389888e1faa9833837a00e53c878d0d55c8ad04612636758576ee148695. 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/2sBHcWNl4kW4cx0Z3VjrIS.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/2sBHcWNl4kW4cx0Z3VjrIS.