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 0xc1e4cab718653b80a043fb2775d280744018ad3d3a7863e4301bf0ca327b8e78. 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/378932b6-d760-43f7-bc83-4a4f852e12ec.json and https://artists.proofprofile.net/proofs/artist/378932b6-d760-43f7-bc83-4a4f852e12ec.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 0x03cb5c91a7f54dcec457e14203fa95db5877fb2b8b6d61d5736d1c91e58d200a. 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/5G7uXesRDkDF5KfOGm9Tvq.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/5G7uXesRDkDF5KfOGm9Tvq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711f3752005061e13e6fd9f79d617dbebcbd3801ffe4a28cc59963178583e65e. 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/7blSCohBydjj5ht3XvJQpn.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/7blSCohBydjj5ht3XvJQpn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc02a89b49221be495101a90f5ce3e639ff8e374d7344df055b9b8ae65ec533. 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/3QYOBRowTPMANMq5EyjgHK.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/3QYOBRowTPMANMq5EyjgHK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06aee9d9a47a9086b7e939950dc206270f670da18f0904bc2a501e63e5ba3ef. 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/6u6HHZa1FH6r7VGeN5jMlX.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/6u6HHZa1FH6r7VGeN5jMlX.
{"copyright_id":"0x51a24f2576ce1c94f848ac2d89a7cf2a559811d9c7be98c4d8ccf80794ad1c43","isrc":"QM4CC1500004","name":"Mensaje De Texto (feat. Arcangel)","registered_at":"2026-06-11T19:54:53Z","spotify_id":"7w0kp0t3rtVilegpPzzJ2B","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a24f2576ce1c94f848ac2d89a7cf2a559811d9c7be98c4d8ccf80794ad1c43. 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/7w0kp0t3rtVilegpPzzJ2B.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/7w0kp0t3rtVilegpPzzJ2B.
No Voy a Dejarte (feat. Farruko, Alexio & Almighty)
{"copyright_id":"0x7b84073fe51dc9186822d0e6e44077d3cf8beac2fc4f0794eb3f028f1169b788","isrc":"QM4CC1500003","name":"No Voy a Dejarte (feat. Farruko, Alexio & Almighty)","registered_at":"2026-06-04T13:16:58Z","spotify_id":"5tzr2poSXrHJlwWlmD0hzO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b84073fe51dc9186822d0e6e44077d3cf8beac2fc4f0794eb3f028f1169b788. 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/5tzr2poSXrHJlwWlmD0hzO.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/5tzr2poSXrHJlwWlmD0hzO.
{"copyright_id":"0x334c7fbc04a8b4ad46907ebcefc555476ee0f8ade92fa7a619a1ccbd4d4753a1","isrc":"TCABY1491869","name":"Nadie Tiene Que Saber (feat. Farruko)","registered_at":"2026-06-04T12:21:45Z","spotify_id":"5xWoxDTYD9rvXlhZRVOosU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334c7fbc04a8b4ad46907ebcefc555476ee0f8ade92fa7a619a1ccbd4d4753a1. 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/5xWoxDTYD9rvXlhZRVOosU.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/5xWoxDTYD9rvXlhZRVOosU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d81307f7a13754ee1511576b6b3788d6b0fc462b796097687e37cf6f3bea4a. 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/5Ulleg65G6BeUkWwvgcpik.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/5Ulleg65G6BeUkWwvgcpik.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14439cc1861e159154101bd87e521c296e18a9d5b8e01d408e27b07093fbf119. 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/5nr4WPFfBKS0DeOKeE6GPh.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/5nr4WPFfBKS0DeOKeE6GPh.