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 0x844a13e16f5b9fcab3d2525a8c1a146fd8b22b0db8a7ff8bba95ce4867997538. 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/a838f9cd-ce16-4ae6-a2d1-f9e87e5d8290.json and https://artists.proofprofile.net/proofs/artist/a838f9cd-ce16-4ae6-a2d1-f9e87e5d8290.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 0xaf0e682e2894eddded04289ee107ef6e311f4c21f3886c05f776f07e7313a00f. 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/4HIhqwsLjmjwXDIIsRg9lt.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/4HIhqwsLjmjwXDIIsRg9lt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7e157f8544c1e00ea8033eff2ce5d48f7854620192ef63309539d1d23c53c0. 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/5s31B1nL5SEcKifOCgHr71.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/5s31B1nL5SEcKifOCgHr71.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7639879dd86085dc8ea4f9b267060f19aaccd719afee42f0a1d0863570d6758a. 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/6648Hiddj61tqFiy21HJEY.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/6648Hiddj61tqFiy21HJEY.
{"copyright_id":"0x0c316e6265ebf0cdde53b574a5722ffaaf22aa7fd7df637cc0e5527b86e4053e","isrc":"GBLV62304151","name":"Only Me & You","registered_at":"2026-06-08T05:06:15Z","spotify_id":"41TGVZy7cVA9XRCiPuneKY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c316e6265ebf0cdde53b574a5722ffaaf22aa7fd7df637cc0e5527b86e4053e. 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/41TGVZy7cVA9XRCiPuneKY.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/41TGVZy7cVA9XRCiPuneKY.
{"copyright_id":"0x6b65f572dc45c0b2005ceabd26de39617551c5e0405c8bbfc2ade40d880beb10","isrc":"QM4TX2262869","name":"ripping at the seams","registered_at":"2026-06-18T05:41:50Z","spotify_id":"1zIsKoPZjgZU3UUI8SXDn3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b65f572dc45c0b2005ceabd26de39617551c5e0405c8bbfc2ade40d880beb10. 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/1zIsKoPZjgZU3UUI8SXDn3.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/1zIsKoPZjgZU3UUI8SXDn3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f153781a7020695d7cb3189a85a33cda365576c2ec2163a7ac7259f4e3ac2d6. 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/1Fs5E8w2v3RJom5XG2QFJg.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/1Fs5E8w2v3RJom5XG2QFJg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbd82b69b72e8c8ba4e8763ea5ad45ce11bac5609a040b0728153db721d99df. 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/654DhX8bNWBbb3DpCLops7.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/654DhX8bNWBbb3DpCLops7.
Restaurant Lounge 2023 Vol. 1 Background Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7639879dd86085dc8ea4f9b267060f19aaccd719afee42f0a1d0863570d6758a. 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/3odLEAY1Nlmmpue0mmfizk.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/3odLEAY1Nlmmpue0mmfizk.
Bar Lounge 2023 Vol. 1 Background Music (Music for Bars, Cocktail Bars or Coffee Bars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7639879dd86085dc8ea4f9b267060f19aaccd719afee42f0a1d0863570d6758a. 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/4qqqO4ZpTfL3UzgxuFGOtN.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/4qqqO4ZpTfL3UzgxuFGOtN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7f33048516f36ec3574bfda33dd427e7a511ae5ef339c10c5e2c350ea613a2. 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/3HUk5vrTiUco4O4U28SDwo.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/3HUk5vrTiUco4O4U28SDwo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4b51e9e0d7137a597e4a19456f7d10be14f63c8f446b6f4aab80efd14f9584. 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/6NXbo9uRUt7NltVN8korMy.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/6NXbo9uRUt7NltVN8korMy.
{"copyright_id":"0x9fdc1cb5c6dec15822042724baa217a0d1ccd40affaa0c5053c92880a2c1ccd4","isrc":"GBKQU2416239","name":"Brighter Days","registered_at":"2026-06-09T08:56:42Z","spotify_id":"0HBSO5V3OGp9YYNxu8vfM1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fdc1cb5c6dec15822042724baa217a0d1ccd40affaa0c5053c92880a2c1ccd4. 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/0HBSO5V3OGp9YYNxu8vfM1.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/0HBSO5V3OGp9YYNxu8vfM1.
{"copyright_id":"0x4befe6c4ca787e5d5dbce2a9d5524e00f8169a4caea250f50f26baa7ae7d091a","isrc":"GX89G2296270","name":"Free Like a Bird","registered_at":"2026-06-07T03:21:31Z","spotify_id":"3JTeTrY6msIOERQKRdeA3s","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4befe6c4ca787e5d5dbce2a9d5524e00f8169a4caea250f50f26baa7ae7d091a. 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/3JTeTrY6msIOERQKRdeA3s.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/3JTeTrY6msIOERQKRdeA3s.
Restaurant Lounge 2023 Vol. 2 Background Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7639879dd86085dc8ea4f9b267060f19aaccd719afee42f0a1d0863570d6758a. 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/1pBp9sGt0CwX3ORPtJ0X3A.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/1pBp9sGt0CwX3ORPtJ0X3A.
New Years Lounge Music 2023 - Background Music - Dinner Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7639879dd86085dc8ea4f9b267060f19aaccd719afee42f0a1d0863570d6758a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1c4mdiRQ6xkenfwd9NkIPB.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/1c4mdiRQ6xkenfwd9NkIPB.
{"copyright_id":"0xe36ffc3d1153df910369d8cea4f1434e52466eabc6ae8a43c97278d8de3e82d8","isrc":"NLT2H2200522","name":"Talking To A Stranger","registered_at":"2026-06-23T13:52:39Z","spotify_id":"5fqnDLnhFM2hkZZrdXlk7M","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36ffc3d1153df910369d8cea4f1434e52466eabc6ae8a43c97278d8de3e82d8. 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/5fqnDLnhFM2hkZZrdXlk7M.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/5fqnDLnhFM2hkZZrdXlk7M.
{"copyright_id":"0xa0901a6bca41538c18cd0bfdbc9cc64c120ae98d60369f14efc69f6ed1b2e87d","isrc":"GXGUF2500049","name":"Sunset (feat. Ima Sobé)","registered_at":"2026-06-05T06:55:43Z","spotify_id":"6lFQL7wcWMEKlmLY352af5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0901a6bca41538c18cd0bfdbc9cc64c120ae98d60369f14efc69f6ed1b2e87d. 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/6lFQL7wcWMEKlmLY352af5.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/6lFQL7wcWMEKlmLY352af5.
{"copyright_id":"0xca69a1c2358f1ec885f084d6628cc138b19d07dc0744cdeea50a9214cf6e7836","isrc":"GBKQU2405046","name":"Walk Away","registered_at":"2026-06-11T03:24:05Z","spotify_id":"2FCltzpqmJ3sZRcXmOTVID","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca69a1c2358f1ec885f084d6628cc138b19d07dc0744cdeea50a9214cf6e7836. 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/2FCltzpqmJ3sZRcXmOTVID.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/2FCltzpqmJ3sZRcXmOTVID.