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 0x57a2ff80806419deb5e67efd5509f98db4f995d37d29118488ae08bfb4615ed1. 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/7023d963-5167-48b8-a33f-0ed2f46bdb97.json and https://artists.proofprofile.net/proofs/artist/7023d963-5167-48b8-a33f-0ed2f46bdb97.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 0x2b72d4029162075f37953006e3be925799dc554eb0df4ba2e7355fdcb1fe99c9. 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/3U1fwI0EVrHjbP5DEXRiqv.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/3U1fwI0EVrHjbP5DEXRiqv.
{"copyright_id":"0xc325924e8411db6008f08284e345bcf859eda3f134fcffb6e1c6720cca719441","isrc":"FRR642201012","name":"I'm Not Alright - Metal Version","registered_at":"2026-06-05T07:13:54Z","spotify_id":"7BpzgSpHxuj06CrK9jPAwy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc325924e8411db6008f08284e345bcf859eda3f134fcffb6e1c6720cca719441. 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/7BpzgSpHxuj06CrK9jPAwy.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/7BpzgSpHxuj06CrK9jPAwy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ef6f68c9161c601781d85036f1562557712b4a7d1d46ee2d0ad853173d956f. 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/2y5dGHas5Wg17vtJXNRmt2.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/2y5dGHas5Wg17vtJXNRmt2.
{"copyright_id":"0x3a6d821b76b0c19c49e701987cf0b790910ad84a8ee7318a360ea3cf971c2fcf","isrc":"GB2LD2210093","name":"On & On - nuumi Remix","registered_at":"2026-06-09T08:27:15Z","spotify_id":"2BAeoP1vAhFZCH3wAgXzLt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6d821b76b0c19c49e701987cf0b790910ad84a8ee7318a360ea3cf971c2fcf. 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/2BAeoP1vAhFZCH3wAgXzLt.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/2BAeoP1vAhFZCH3wAgXzLt.
{"copyright_id":"0x5b9e387ff3359fbf3d376c04992c3c0f4d2ae0e9419ce6a565a7cdfb2a2a0419","isrc":"GB2LD2210095","name":"On & On - Affe & Cole Phillips Remix","registered_at":"2026-06-17T04:13:46Z","spotify_id":"51QLhKVg45ArGsnKxhcuj3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9e387ff3359fbf3d376c04992c3c0f4d2ae0e9419ce6a565a7cdfb2a2a0419. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:30:53Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/51QLhKVg45ArGsnKxhcuj3.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/51QLhKVg45ArGsnKxhcuj3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870f308412ed1bac6bca264fa81437cdbbfcca1029eb39dcd236d7146cd20dd1. 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/2cVJq55ISQ7LNkWibZzRSY.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/2cVJq55ISQ7LNkWibZzRSY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff964c0cdd0c08f8570945099cec203d584236926ace90b218916a19022c1db. 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/0WS07xZiFLjsKz0QjsJ715.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/0WS07xZiFLjsKz0QjsJ715.
{"copyright_id":"0xc00453be7898f8a3618eaf8702adcb08030ad4ab26aa188fd21607bc00ec71b3","isrc":"GB2LD2010094","name":"Howling - Charlie Lane Remix","registered_at":"2026-06-09T19:21:08Z","spotify_id":"3mm8DpIAGJDp8NYnlN8OU1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00453be7898f8a3618eaf8702adcb08030ad4ab26aa188fd21607bc00ec71b3. 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/3mm8DpIAGJDp8NYnlN8OU1.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/3mm8DpIAGJDp8NYnlN8OU1.
Here / Feeling (Piece Of You) [Liquicity Presents]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4f166b34f8c2d5a4adcb17f09daec4a8aec6ba5ac6987a7144f01ebb90163d. 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/5B9o5Hd2wQoGDhTBDREEiY.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/5B9o5Hd2wQoGDhTBDREEiY.
{"copyright_id":"0xfbca35d0cfc4d08e57e02bd0974d033b3d90548011b6e7ad64c5ee1dedca45c3","isrc":"NLCK41032001","name":"Feeling (Piece Of U)","registered_at":"2026-06-11T13:50:58Z","spotify_id":"4iqNzbW605i6tTJ5fl5LlN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbca35d0cfc4d08e57e02bd0974d033b3d90548011b6e7ad64c5ee1dedca45c3. 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/4iqNzbW605i6tTJ5fl5LlN.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/4iqNzbW605i6tTJ5fl5LlN.
{"copyright_id":"0x647cbfeb36fa63e592a58fcd864542094707041fe83788a3756e11e272fad6cc","isrc":"GB2LD0902343","name":"I Remember U - Xilent Remix","registered_at":"2026-06-08T04:42:35Z","spotify_id":"54rBtWJwXlPyeabaNQlysA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647cbfeb36fa63e592a58fcd864542094707041fe83788a3756e11e272fad6cc. 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/54rBtWJwXlPyeabaNQlysA.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/54rBtWJwXlPyeabaNQlysA.
{"copyright_id":"0x4a93b28b9d8d85bc063685049ee4e19eabdb3b37c19350bb9ce2689c93a7bd5d","isrc":"GB2LD0902300","name":"I Remember U","registered_at":"2026-06-04T09:42:00Z","spotify_id":"2FTaTyEHyMQXPbaxorcKfE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a93b28b9d8d85bc063685049ee4e19eabdb3b37c19350bb9ce2689c93a7bd5d. 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/2FTaTyEHyMQXPbaxorcKfE.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/2FTaTyEHyMQXPbaxorcKfE.
{"copyright_id":"0xf5ecaabfa185ef4204ca1826d71c079a652c14c3164818adf0df8117c95b0e07","isrc":"GB2LD0902301","name":"I Remember U - Extended Mix","registered_at":"2026-06-08T13:34:22Z","spotify_id":"6ngMUVClHUTwkEWUjO5m54","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ecaabfa185ef4204ca1826d71c079a652c14c3164818adf0df8117c95b0e07. 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/6ngMUVClHUTwkEWUjO5m54.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/6ngMUVClHUTwkEWUjO5m54.
{"copyright_id":"0xaa6b4b22d33c580fcc8b756975423fe2bdf2cc654089925915bf6da9e0530776","isrc":"GB2LD0902279","name":"I Remember U - Ownglow Remix","registered_at":"2026-06-07T21:12:44Z","spotify_id":"2ehD3Lh8CGdR76XfTMGuDP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6b4b22d33c580fcc8b756975423fe2bdf2cc654089925915bf6da9e0530776. 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/2ehD3Lh8CGdR76XfTMGuDP.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/2ehD3Lh8CGdR76XfTMGuDP.
{"copyright_id":"0x8ef36dea32813cb28122252282d919349b3a8e8effc9a25e80ec60479ccf9cd7","isrc":"FRR642201433","name":"I'm Not Alright - NLCK & Dimatik Remix","registered_at":"2026-06-04T12:10:38Z","spotify_id":"42SXIBHkSp74NfGVkpVx2T","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef36dea32813cb28122252282d919349b3a8e8effc9a25e80ec60479ccf9cd7. 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/42SXIBHkSp74NfGVkpVx2T.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/42SXIBHkSp74NfGVkpVx2T.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4175fcbdeabcc53affac7d3f76b8e1f5ad8640903698dd43958ca10ae17f16. 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/6CnejyYJYlNlZGrq5pGeF9.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/6CnejyYJYlNlZGrq5pGeF9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd110e9feeab3626a75a0d2b7139b19bd272e07f3e2958c244482612d5b3a83d. 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/2Iks5m5CbOIjgOq129erIA.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/2Iks5m5CbOIjgOq129erIA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82e8161f20436fe5657c4417c881568c2d900d0cb64bc821898a08f584cb74b. 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/1I23ZdNcezc4N7QUc30rXx.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/1I23ZdNcezc4N7QUc30rXx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e5381793620d96895a2c17696b32bfcc75a66385eabef6a501d6e743099a46. 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/5fua9U5Yo7MJLeyhQKAvdE.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/5fua9U5Yo7MJLeyhQKAvdE.