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 0x8acdc5dd06917a1a8eeff074606ff639e07f43849cf5178a7ac50d6bfcb78711. 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/1dbc3736-4624-4cd7-ad3a-7c4974f6a19a.json and https://artists.proofprofile.net/proofs/artist/1dbc3736-4624-4cd7-ad3a-7c4974f6a19a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x6443f52c352baf3a6095cca9de7b9638bdc297fc376e240c95dc423672c11dd7","isrc":"QZAKB2406899","name":"Beachy White Noise","registered_at":"2026-06-01T11:25:46Z","spotify_id":"7DcwvYZDbJpZaGn2goeG9f","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 0x6443f52c352baf3a6095cca9de7b9638bdc297fc376e240c95dc423672c11dd7. 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/7DcwvYZDbJpZaGn2goeG9f.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/7DcwvYZDbJpZaGn2goeG9f.
{"copyright_id":"0x2d0941b9ee3937a531a0ddf95aefccdd583e4898ae5afa3e2c369d9fa313d333","isrc":"QZAKB2372593","name":"Mommy's Whispers","registered_at":"2026-06-05T21:01:28Z","spotify_id":"17fK9m8oSBWlZv8f5urALl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0941b9ee3937a531a0ddf95aefccdd583e4898ae5afa3e2c369d9fa313d333. 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/17fK9m8oSBWlZv8f5urALl.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/17fK9m8oSBWlZv8f5urALl.
{"copyright_id":"0x04fd7b3ebf8b6f405ded0afaca7267785f3beb226f9067ed92f44b897dad6613","isrc":"QZAKB2366991","name":"The best Sleep Noise","registered_at":"2026-06-04T04:20:18Z","spotify_id":"6cNCm1mNVc81UwLQc3Ze03","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fd7b3ebf8b6f405ded0afaca7267785f3beb226f9067ed92f44b897dad6613. 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/6cNCm1mNVc81UwLQc3Ze03.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/6cNCm1mNVc81UwLQc3Ze03.
{"copyright_id":"0x9e6d3ec3dbd3f04e978a1a84770f0db6ec463e57c2715007a82359f57a0ec30f","isrc":"QZAKB2361507","name":"My little White Noise Machine","registered_at":"2026-06-05T21:01:36Z","spotify_id":"2JEp7APVgK2rwgOfMP0g9g","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6d3ec3dbd3f04e978a1a84770f0db6ec463e57c2715007a82359f57a0ec30f. 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/2JEp7APVgK2rwgOfMP0g9g.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/2JEp7APVgK2rwgOfMP0g9g.
{"copyright_id":"0x236c81702980d040d8a6cdc970311ca5fc87c7e5679583f53a74041b809bbb8f","isrc":"QZAKB2352212","name":"In the White Noise Cave","registered_at":"2026-06-05T05:06:00Z","spotify_id":"1sV9WPCpIZeqnQ9qoYAuzt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236c81702980d040d8a6cdc970311ca5fc87c7e5679583f53a74041b809bbb8f. 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/1sV9WPCpIZeqnQ9qoYAuzt.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/1sV9WPCpIZeqnQ9qoYAuzt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9d7446b4efb80d98f1df5c24478b18d74849e1701879e8d9c5f627bac7ce75. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3OOuy4jyh0P188FsiJ33dk.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/3OOuy4jyh0P188FsiJ33dk.
{"copyright_id":"0xa4ad954662131bfa2bcbffe2092520057f1f88ac1c395ea0a7ede9aa34e791bf","isrc":"QZAKB2202704","name":"Pink Noise Exploration","registered_at":"2026-06-20T02:47:28Z","spotify_id":"5edAkQKqXjEP8ADi1Nb2PO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ad954662131bfa2bcbffe2092520057f1f88ac1c395ea0a7ede9aa34e791bf. 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/5edAkQKqXjEP8ADi1Nb2PO.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/5edAkQKqXjEP8ADi1Nb2PO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188380456ab85e5a89d80358b4317c5172bb09edf4e0135a64668d71ca62d285. 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/7cciCforXqryV24fglimTx.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/7cciCforXqryV24fglimTx.
{"copyright_id":"0xc966fd8121aa3b8955aa0997cb3d2b1afe9bf39e59384f49d3a3c2be2eeffea2","isrc":"QZAKB2202706","name":"Pink Noise Satisfaction","registered_at":"2026-06-01T22:09:44Z","spotify_id":"3HRDr4iGCIH6IjYpduxVJl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc966fd8121aa3b8955aa0997cb3d2b1afe9bf39e59384f49d3a3c2be2eeffea2. 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/3HRDr4iGCIH6IjYpduxVJl.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/3HRDr4iGCIH6IjYpduxVJl.
{"copyright_id":"0x2421dd40682bafdb0097d0bfe0214aca7b4ffb15c1b5764c183391132ac4da87","isrc":"QZAKB2168230","name":"Pink Noise is for Studying","registered_at":"2026-06-10T02:33:00Z","spotify_id":"6FkorhjKsHFyAmjNchtF7D","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2421dd40682bafdb0097d0bfe0214aca7b4ffb15c1b5764c183391132ac4da87. 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/6FkorhjKsHFyAmjNchtF7D.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/6FkorhjKsHFyAmjNchtF7D.
{"copyright_id":"0x0acb49ad5611573216c17300177ed8fa57e2bb8169d3fc84033cd61d46c798dd","isrc":"QZAKB2167395","name":"Pink Noise is for Sleeping","registered_at":"2026-06-25T17:01:48Z","spotify_id":"5Tgai9SkLgP2bsywMzvEtR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0acb49ad5611573216c17300177ed8fa57e2bb8169d3fc84033cd61d46c798dd. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Tgai9SkLgP2bsywMzvEtR.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/5Tgai9SkLgP2bsywMzvEtR.
{"copyright_id":"0x3927cec71f4c307f2b1c14a2c4ea59c47415c7684f0b28c742cb10d30a66722f","isrc":"QZAKB2163051","name":"In the Clouds with Pink Noise","registered_at":"2026-06-06T02:21:13Z","spotify_id":"0zxmtrQnQd9J8sZTYKuWRr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3927cec71f4c307f2b1c14a2c4ea59c47415c7684f0b28c742cb10d30a66722f. 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/0zxmtrQnQd9J8sZTYKuWRr.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/0zxmtrQnQd9J8sZTYKuWRr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb299af8b44b9800bfab4a8b697a7c8258049a58c1c6f11e3a6855bd39a3a3065. 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/323XAHV4xNmDv1TRoRFYu0.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/323XAHV4xNmDv1TRoRFYu0.
{"copyright_id":"0xed4cd61de3d85b74599853babd4a5d0b4a4eb07024b5c5b2efec7ca52aa55eb5","isrc":"QZAKB2153778","name":"Pink Noise for Endless Nights","registered_at":"2026-06-23T04:20:59Z","spotify_id":"0OUAk5Tspn0F7rqdiPZiR3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4cd61de3d85b74599853babd4a5d0b4a4eb07024b5c5b2efec7ca52aa55eb5. 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/0OUAk5Tspn0F7rqdiPZiR3.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/0OUAk5Tspn0F7rqdiPZiR3.
{"copyright_id":"0x96dc962d3bd6d9fbed75cd8328d60b16f6c87efac76f17d2c1a63080ac615766","isrc":"QZAKB2135967","name":"Brown Noise zum Meditieren","registered_at":"2026-06-09T14:31:09Z","spotify_id":"6BMfqlroCwtGxEefckkcQI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96dc962d3bd6d9fbed75cd8328d60b16f6c87efac76f17d2c1a63080ac615766. 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/6BMfqlroCwtGxEefckkcQI.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/6BMfqlroCwtGxEefckkcQI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc024b68f347271d6197cb81178b8b932f03c645a214e2e52ef99d509b06831. 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/4hbUmOmvkhmmGahzjEBdGT.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/4hbUmOmvkhmmGahzjEBdGT.
{"copyright_id":"0xb4e72b2fc8f692f6b34f077811c09634f05e7da16c1d74c9f4a6fa1141f50950","isrc":"QZAKB2135969","name":"Brown Noise in Space","registered_at":"2026-06-21T19:32:27Z","spotify_id":"6j8fSORyc3YQCfYbIJL29q","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e72b2fc8f692f6b34f077811c09634f05e7da16c1d74c9f4a6fa1141f50950. 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/6j8fSORyc3YQCfYbIJL29q.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/6j8fSORyc3YQCfYbIJL29q.
{"copyright_id":"0xd26b272f22ba5e6f2bb8eab4a846b341734c5ac22412abd92a28564e1e24c6fd","isrc":"QZAKB2101670","name":"Dreamy Pink Noise 457Hz","registered_at":"2026-06-25T17:13:42Z","spotify_id":"139JoD24onKjhrGr8I3oep","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26b272f22ba5e6f2bb8eab4a846b341734c5ac22412abd92a28564e1e24c6fd. 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/139JoD24onKjhrGr8I3oep.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/139JoD24onKjhrGr8I3oep.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f8a3ba5c251c2fc0d3c18fd4d8959043561b149c556c55556ee1f748b7e19a. 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/24tWDzy6H6g3MpQFFzL7iZ.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/24tWDzy6H6g3MpQFFzL7iZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818b1840936b761ec805d2969e181f82e41c58c2853441eff5b75792094fab25. 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/79T9Dm63dHw8I5JMc9LVxz.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/79T9Dm63dHw8I5JMc9LVxz.
{"copyright_id":"0xd29033923b3ad62dd68c3bae74c942a3f3df4b4c48111ccd37e86ebc668e9f10","isrc":"QZAKB2003451","name":"Ocean of White Noise","registered_at":"2026-06-01T23:50:27Z","spotify_id":"1U32wy73T96IdYuq1L6yDf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29033923b3ad62dd68c3bae74c942a3f3df4b4c48111ccd37e86ebc668e9f10. 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/1U32wy73T96IdYuq1L6yDf.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/1U32wy73T96IdYuq1L6yDf.
{"copyright_id":"0xe4fa77e4bb983aa0172cf80eb527a53c248bd8974c91c6171fc578e6c50b8da6","isrc":"QZAKB2003452","name":"In the Air Pink Noise","registered_at":"2026-06-04T13:38:37Z","spotify_id":"0SKVt9FLtATRPUk9p9lcpA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fa77e4bb983aa0172cf80eb527a53c248bd8974c91c6171fc578e6c50b8da6. 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/0SKVt9FLtATRPUk9p9lcpA.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/0SKVt9FLtATRPUk9p9lcpA.