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 0x29e4556caf005e27f389b249383300fa4b5298b158160ba68411236623ed64e3. 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/09a7f365-d261-4c5b-abf6-d62b1c0035f2.json and https://artists.proofprofile.net/proofs/artist/09a7f365-d261-4c5b-abf6-d62b1c0035f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
All My Demons Greeting Me as a Friend (Deluxe)
{"copyright_id":"0xd41b40ffd67847565adde7b89b5b696823a298c06407176f4dd5a0f42d69c6ed","isrc":"GBUM72102606","name":"A Dangerous Thing","registered_at":"2026-06-04T07:52:05Z","spotify_id":"0PDlmmYkuQCUAFhMXvtlsU","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 0xd41b40ffd67847565adde7b89b5b696823a298c06407176f4dd5a0f42d69c6ed. 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/0PDlmmYkuQCUAFhMXvtlsU.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/0PDlmmYkuQCUAFhMXvtlsU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b31f317ca7c9b579a51c7718426214991d3a72b68efbce27f0770d127508f88. 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/6tVahG14lCjexVQnYWKgwF.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/6tVahG14lCjexVQnYWKgwF.
Girls, Vol. 3 (Music From The HBO Original Series)
{"copyright_id":"0xa51cee446d158a5c11bfc82b027dffea750e1c7bbce9933debf7a3f65cccd8d0","isrc":"GBUM71600167","name":"Life On Mars","registered_at":"2026-06-04T11:35:42Z","spotify_id":"6tdixrrHbOHQfdamvcyOes","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51cee446d158a5c11bfc82b027dffea750e1c7bbce9933debf7a3f65cccd8d0. 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/6tdixrrHbOHQfdamvcyOes.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/6tdixrrHbOHQfdamvcyOes.
{"copyright_id":"0xcdf96370c5ff8bf663dea5c18fc3ae66ece2838d6c0dbd4d81e827a4168e867a","isrc":"GBUM72203299","name":"Runaway (TikTok Classics Version)","registered_at":"2026-06-04T13:32:11Z","spotify_id":"0DuAbSrZUbPILSWAM6Xeov","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf96370c5ff8bf663dea5c18fc3ae66ece2838d6c0dbd4d81e827a4168e867a. 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/0DuAbSrZUbPILSWAM6Xeov.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/0DuAbSrZUbPILSWAM6Xeov.
{"copyright_id":"0x09042b3bbfade442ecfe34d3b0bac9e4946bfd62160ca9e4590b019807c6e911","isrc":"DEU671700201","name":"In Bottles (feat. Aurora)","registered_at":"2026-06-10T14:35:23Z","spotify_id":"3EWAUYRlZ9fFRuXmr9NZX1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09042b3bbfade442ecfe34d3b0bac9e4946bfd62160ca9e4590b019807c6e911. 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/3EWAUYRlZ9fFRuXmr9NZX1.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/3EWAUYRlZ9fFRuXmr9NZX1.
Een onbekend oord - Van "Frozen 2"/Originele Nederlandstalige Soundtrack
{"copyright_id":"0x72b274240ac223bb41df879f17dca7de0cd2eb41ac4e88ce5551324bebe33502","isrc":"USWD11994899","name":"Een onbekend oord - Van \"Frozen 2\"/Originele Nederlandstalige Soundtrack","registered_at":"2026-06-04T15:17:21Z","spotify_id":"13f0DEH6OdpgRnCPQCyoKl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b274240ac223bb41df879f17dca7de0cd2eb41ac4e88ce5551324bebe33502. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/13f0DEH6OdpgRnCPQCyoKl.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/13f0DEH6OdpgRnCPQCyoKl.
{"copyright_id":"0xa80181d73af2dbf941b9acfda7d0bc77ed0a0e60fa8921bbccaf712311906549","isrc":"QZUCN2200702","name":"BRING BACK THE COLOR","registered_at":"2026-06-04T08:29:58Z","spotify_id":"2AHd1SRo5rAFvJOCEwLyTi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80181d73af2dbf941b9acfda7d0bc77ed0a0e60fa8921bbccaf712311906549. 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/2AHd1SRo5rAFvJOCEwLyTi.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/2AHd1SRo5rAFvJOCEwLyTi.
{"copyright_id":"0xa80181d73af2dbf941b9acfda7d0bc77ed0a0e60fa8921bbccaf712311906549","isrc":"QZUCN2200702","name":"BRING BACK THE COLOR (feat. AURORA)","registered_at":"2026-06-04T08:29:58Z","spotify_id":"575i9kr1iypkCZyfJuoAlZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80181d73af2dbf941b9acfda7d0bc77ed0a0e60fa8921bbccaf712311906549. 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/575i9kr1iypkCZyfJuoAlZ.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/575i9kr1iypkCZyfJuoAlZ.
A Soul With No King - Remix (feat. NATURE)
{"copyright_id":"0xed09d58f3391bdebe0ad41db2a94092bb3053ab14dd83c23bc9ca04e7898ea9d","isrc":"TWFE12200001","name":"Storm（feat. Aurora）","registered_at":"2026-06-06T09:06:28Z","spotify_id":"42ay8bo0rowYXdSWipGS2H","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed09d58f3391bdebe0ad41db2a94092bb3053ab14dd83c23bc9ca04e7898ea9d. 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/42ay8bo0rowYXdSWipGS2H.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/42ay8bo0rowYXdSWipGS2H.
Storm（English Version）（feat. Aurora） - English Version
{"copyright_id":"0x17049d0b54f9c840e8cac79120abe338554d2ba96a850fee497567ce035de9d7","isrc":"TWFE12200002","name":"Storm（English Version）（feat. Aurora） - English Version","registered_at":"2026-06-05T16:02:22Z","spotify_id":"2ymlzGnOLM7zXiWWeaP7V4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17049d0b54f9c840e8cac79120abe338554d2ba96a850fee497567ce035de9d7. 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/2ymlzGnOLM7zXiWWeaP7V4.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/2ymlzGnOLM7zXiWWeaP7V4.
{"copyright_id":"0x2cd69253af96ed9250ab54b6de4a1827d1be14e7395aca1b3b8bb19d9924b73a","isrc":"USWD11994907","name":"Ud i ukendt land - Fra \"Frost 2\"","registered_at":"2026-06-06T05:02:12Z","spotify_id":"3UT0Na8p3SE6xrAwEXBOyS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd69253af96ed9250ab54b6de4a1827d1be14e7395aca1b3b8bb19d9924b73a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3UT0Na8p3SE6xrAwEXBOyS.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/3UT0Na8p3SE6xrAwEXBOyS.
Frozen 2 (Originele Nederlandstalige Soundtrack/Deluxe Edition)
{"copyright_id":"0x72b274240ac223bb41df879f17dca7de0cd2eb41ac4e88ce5551324bebe33502","isrc":"USWD11994899","name":"Een onbekend oord","registered_at":"2026-06-04T15:17:21Z","spotify_id":"59a4YDcQtZJW6Y6JQq2Ubh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b274240ac223bb41df879f17dca7de0cd2eb41ac4e88ce5551324bebe33502. 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/59a4YDcQtZJW6Y6JQq2Ubh.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/59a4YDcQtZJW6Y6JQq2Ubh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed09d58f3391bdebe0ad41db2a94092bb3053ab14dd83c23bc9ca04e7898ea9d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6BlvxZU5IpzeLe9eJvPrSb.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/6BlvxZU5IpzeLe9eJvPrSb.
{"copyright_id":"0x1a8c9594fddc3c7eb7a3aad593ab7865504d89cb7015611c5e91b7992cd11540","isrc":"GBUM72102600","name":"Everything Matters","registered_at":"2026-06-26T16:45:46Z","spotify_id":"16giKKUy5ksklSfqZCWnUK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8c9594fddc3c7eb7a3aad593ab7865504d89cb7015611c5e91b7992cd11540. 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/16giKKUy5ksklSfqZCWnUK.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/16giKKUy5ksklSfqZCWnUK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91617c484d9f3b9af656d0da8ecb4824d4f9d0104e1848dc50952c833279c5a0. 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/3PIla3hOLQxw5l6GW2jdZu.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/3PIla3hOLQxw5l6GW2jdZu.