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 0x3bf8f9e07ecc0dc3e9314e010c02b63685f1ffff98a84b488ca73bd9299289c6. 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/0f11c9b1-3cce-4b0a-94ad-6914c6639321.json and https://artists.proofprofile.net/proofs/artist/0f11c9b1-3cce-4b0a-94ad-6914c6639321.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x8123e3c3e7bf396cb877925cc0a7d2f04788370308f98e489c1779cd499b845e","isrc":"USRE10902084","name":"Down with the Sickness","registered_at":"2026-06-01T13:34:16Z","spotify_id":"4ImIJRZNJhNQLLdUFSYJoS","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 0x8123e3c3e7bf396cb877925cc0a7d2f04788370308f98e489c1779cd499b845e. 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/4ImIJRZNJhNQLLdUFSYJoS.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/4ImIJRZNJhNQLLdUFSYJoS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66616e5b1d66c0a94421d47399171613365dab1e41f809534a32c01776c24296. 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/4ClGNWLK9vZMBtO0CpnyOE.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/4ClGNWLK9vZMBtO0CpnyOE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f55328cc3e1095b19e0ac220353d38cbd434d00e652d6824c2f8783d0ba58a. 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/78ObTPtTR1gQ1b6tcVeBdA.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/78ObTPtTR1gQ1b6tcVeBdA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec5c6be97d0dfa3f7244a0db7805f283b577f2213284398013f04d3400d0b7c. 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/2of76eyCdCH3zTRNSdFf0x.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/2of76eyCdCH3zTRNSdFf0x.
{"copyright_id":"0x8264a4c5b46332ff302cc01c3147ed059d07c74088560f3a1a7328fb4466ac3c","isrc":"USRE12400063","name":"The Sound of Silence - CYRIL Remix","registered_at":"2026-06-01T02:45:21Z","spotify_id":"1LY3GhF0zxIVgbYEQjCbUO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8264a4c5b46332ff302cc01c3147ed059d07c74088560f3a1a7328fb4466ac3c. 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/1LY3GhF0zxIVgbYEQjCbUO.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/1LY3GhF0zxIVgbYEQjCbUO.
{"copyright_id":"0x983b61830de94d86aab0def3b4a0e1f82ce67917b5596b5befd51efc799fa3ac","isrc":"USRE11500180","name":"The Sound of Silence","registered_at":"2026-06-01T08:33:49Z","spotify_id":"0eZBeB2xFIS65jQHerispi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983b61830de94d86aab0def3b4a0e1f82ce67917b5596b5befd51efc799fa3ac. 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/0eZBeB2xFIS65jQHerispi.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/0eZBeB2xFIS65jQHerispi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636032672c365740da1f500e4d33d056ddc4151bcb42ebba994119640f705929. 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/54gHtLZx6LzToQBuHmIQHc.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/54gHtLZx6LzToQBuHmIQHc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d7ff5a95f69f0b8b8a7ff08bf739b81c0e094b4be70527d18a336cc49df91a. 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/48ra1MC5YRsr9RpWWUgTnR.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/48ra1MC5YRsr9RpWWUgTnR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e953d0ad987ec8712b2b11a84fb33345b5d89f4acc2e35b3be1c5d57153ee14. 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/3ryxuYYFsA7RPuOUtmPadv.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/3ryxuYYFsA7RPuOUtmPadv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3acb4c75c9380d77b571abf4d9704122623519cb329d5a471cc4f6cb43c9250b. 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/7k0rh74p8aQcxSwbAlOtMe.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/7k0rh74p8aQcxSwbAlOtMe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe71202d8638009981d0c3a1cbbfc661c8ab371a5c791753d6d19563a555692. 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/5t2Wv4h5MO2ZyRBsLbFz55.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/5t2Wv4h5MO2ZyRBsLbFz55.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77e717bb71f63cd8165ddadf7be250325637016f1b5c757827141cce9efac54. 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/1rlo5nf8AxMJasd2QlnBoo.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/1rlo5nf8AxMJasd2QlnBoo.
{"copyright_id":"0x8050bae858848385c784e80cd9bfe1020a11cb2204d9e0af5a2724fb0b9a4200","isrc":"USRE12200451","name":"Feeding the Fire","registered_at":"2026-06-04T09:08:35Z","spotify_id":"3ijMstMAXNOUCZCt9GLXaa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8050bae858848385c784e80cd9bfe1020a11cb2204d9e0af5a2724fb0b9a4200. 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/3ijMstMAXNOUCZCt9GLXaa.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/3ijMstMAXNOUCZCt9GLXaa.
{"copyright_id":"0xba90725470446a77ef936e77c71da1e87b1f130f6b727228efd8836cf9f4d1ed","isrc":"USRE12200453","name":"Take Back Your Life","registered_at":"2026-06-04T14:07:37Z","spotify_id":"4LQKQgbvePm0LUONqRWyhe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba90725470446a77ef936e77c71da1e87b1f130f6b727228efd8836cf9f4d1ed. 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/4LQKQgbvePm0LUONqRWyhe.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/4LQKQgbvePm0LUONqRWyhe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2d8104e6da0893aba6fc439551878bfbaf61c7480400f63d700c5dbdb61d9f. 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/4DjnH6htLO5pLyIfNNtJZq.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/4DjnH6htLO5pLyIfNNtJZq.
{"copyright_id":"0x7eb6619a036092fd707effa83e35d8f13e4ae5d949f744a89c4bd4a4f2db7c6a","isrc":"USRE12200455","name":"Won't Back Down","registered_at":"2026-06-04T10:32:58Z","spotify_id":"42NCnHb3aryOKUWScfVKPJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb6619a036092fd707effa83e35d8f13e4ae5d949f744a89c4bd4a4f2db7c6a. 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/42NCnHb3aryOKUWScfVKPJ.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/42NCnHb3aryOKUWScfVKPJ.
The Golden Trail (feat. Anders Fridén of In Flames)
{"copyright_id":"0x0e17d6ca2995d97d21f87e4f56ed8e6fa2e88bfcd5427cd15ce625d71404b718","isrc":"USYFZ2163801","name":"Dead Inside","registered_at":"2026-06-06T07:21:15Z","spotify_id":"0DIStdtP0gEKAwKtLGK56u","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e17d6ca2995d97d21f87e4f56ed8e6fa2e88bfcd5427cd15ce625d71404b718. 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/0DIStdtP0gEKAwKtLGK56u.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/0DIStdtP0gEKAwKtLGK56u.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee450bbb55ba214f11ebc6ef10c3b1be2575280a2a0ce83f778ea2313f4e5e5. 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/6mdgrr5hgtrDpKbAyes5eq.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/6mdgrr5hgtrDpKbAyes5eq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddaf8cdd62f0c7ef5d7cd323cd050b66b5ddfb334539f8a0fc4e003a756684b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3t3PuysqXk9h9Fm7Brt4SI.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/3t3PuysqXk9h9Fm7Brt4SI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7409170ad8ceec44f5178b4801a1a15275417ab15884129e11d055fd110c07. 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/0Nd3TrkVaJVf4JG8m312og.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/0Nd3TrkVaJVf4JG8m312og.
{"copyright_id":"0x983b61830de94d86aab0def3b4a0e1f82ce67917b5596b5befd51efc799fa3ac","isrc":"USRE11500180","name":"The Sound of Silence","registered_at":"2026-06-01T08:33:49Z","spotify_id":"3Aa8LGU4OBN2oZ12y2jhnU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983b61830de94d86aab0def3b4a0e1f82ce67917b5596b5befd51efc799fa3ac. 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/3Aa8LGU4OBN2oZ12y2jhnU.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/3Aa8LGU4OBN2oZ12y2jhnU.