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 0x8b5e68522b78b4e9573171bcbf2b7853a45218dcec723c50335a8e0f31ffc24d. 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/0ac0cdd3-65bf-4154-bb2a-3d06f69dc797.json and https://artists.proofprofile.net/proofs/artist/0ac0cdd3-65bf-4154-bb2a-3d06f69dc797.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x12d3a2f1a8b4383e09b3b9c62e85cbaaa24c8cad803f7dd8319a8f21fc674c86","isrc":"QZNFJ2210059","name":"El Arbolon","registered_at":"2026-06-29T07:45:14Z","spotify_id":"5WyeGZgrXY97nRYaqFEQCu","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 0x12d3a2f1a8b4383e09b3b9c62e85cbaaa24c8cad803f7dd8319a8f21fc674c86. 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/5WyeGZgrXY97nRYaqFEQCu.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/5WyeGZgrXY97nRYaqFEQCu.
{"copyright_id":"0xf4304a97325f863a6fe4e544193a7ce2b9123a4186d1e56bfd1dfceac1c48d14","isrc":"USA2P2336775","name":"El Hombre Del Mito","registered_at":"2026-06-18T14:17:03Z","spotify_id":"5ecu5GOTtwnLYOvVp3eg0i","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4304a97325f863a6fe4e544193a7ce2b9123a4186d1e56bfd1dfceac1c48d14. 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/5ecu5GOTtwnLYOvVp3eg0i.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/5ecu5GOTtwnLYOvVp3eg0i.
{"copyright_id":"0x5305ba44a78ad3face5deade8bdf3387f6f9e9ae19922844304c096d0d26c17d","isrc":"USA2P2339385","name":"La Ultima M","registered_at":"2026-06-18T11:30:14Z","spotify_id":"0RMu8AlxI3YUSuDYld8HxY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5305ba44a78ad3face5deade8bdf3387f6f9e9ae19922844304c096d0d26c17d. 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/0RMu8AlxI3YUSuDYld8HxY.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/0RMu8AlxI3YUSuDYld8HxY.
{"copyright_id":"0x6659d65c1b6229101b911c98fbdf19f781e3f3a7e4bfda48457f3e244a3009aa","isrc":"USA2P2341771","name":"La Humilde Opinion","registered_at":"2026-06-04T12:23:35Z","spotify_id":"1WaSjbtdX6qrXmOEobuUni","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6659d65c1b6229101b911c98fbdf19f781e3f3a7e4bfda48457f3e244a3009aa. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1WaSjbtdX6qrXmOEobuUni.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/1WaSjbtdX6qrXmOEobuUni.
{"copyright_id":"0x6659d65c1b6229101b911c98fbdf19f781e3f3a7e4bfda48457f3e244a3009aa","isrc":"USA2P2341771","name":"La Humilde Opinion","registered_at":"2026-06-04T12:23:35Z","spotify_id":"6dMgfy2TWgjlt7hoCCrbo1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6659d65c1b6229101b911c98fbdf19f781e3f3a7e4bfda48457f3e244a3009aa. 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/6dMgfy2TWgjlt7hoCCrbo1.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/6dMgfy2TWgjlt7hoCCrbo1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542964d36aafb5a976706d4830cbd863f1782cc2f69ca40606b598635c8bd55f. 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/374D8ODg1lL8rDyRqVGyiC.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/374D8ODg1lL8rDyRqVGyiC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4533e7c4d9a0ee9a8286e9304e597af4482c191477196195d94a59f3426f2cf. 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/6ICZLmMxQeWZQrxtynSh68.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/6ICZLmMxQeWZQrxtynSh68.
{"copyright_id":"0xf540f6ec92036da1a49b40621f97bfe2fcd8d809acaf8b47e1dc96c5ce988379","isrc":"QZDQH2436526","name":"Los Placeres Del Jodido","registered_at":"2026-06-21T06:09:06Z","spotify_id":"2fD1KCdKqW2fovdBfLZDru","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf540f6ec92036da1a49b40621f97bfe2fcd8d809acaf8b47e1dc96c5ce988379. 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/2fD1KCdKqW2fovdBfLZDru.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/2fD1KCdKqW2fovdBfLZDru.
Levemente: En Vivo Desde Carricitos, Sinaloa
{"copyright_id":"0xd72d19559a25276643e91c5e2269b3aacdc575833ac7a8c3f5a7a88bb0464f3e","isrc":"TCAEO1910574","name":"Te Permito - En Vivo","registered_at":"2026-06-24T16:52:56Z","spotify_id":"6FYUgbeDHOxero5owgs11I","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72d19559a25276643e91c5e2269b3aacdc575833ac7a8c3f5a7a88bb0464f3e. 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/6FYUgbeDHOxero5owgs11I.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/6FYUgbeDHOxero5owgs11I.