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 0x60ae203309923ed14e5861b0eec5317938486dc6adf74f72e0e4cd15aed350cc. 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/a3276c4b-4dd9-463c-8443-29a12b4363f0.json and https://artists.proofprofile.net/proofs/artist/a3276c4b-4dd9-463c-8443-29a12b4363f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Zolang Jij Er In Gelooft (feat. Jairzinho)
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 0x1f58cba7f236ac7f13300068796d490560d7e6172ebfa3a5c6b9261984d9c1c2. 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/6ABkVsmdG7HDxWfbcbFFAu.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/6ABkVsmdG7HDxWfbcbFFAu.
{"copyright_id":"0x15bb042e675b3c952bed1c1c5be7831c5ba6feecee47a60b38f9f0d0873f0cce","isrc":"NLS5K1800090","name":"Op 1 Lijn","registered_at":"2026-06-25T10:39:55Z","spotify_id":"1AAsXAjT1WDwS33xeKOMac","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bb042e675b3c952bed1c1c5be7831c5ba6feecee47a60b38f9f0d0873f0cce. 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/1AAsXAjT1WDwS33xeKOMac.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/1AAsXAjT1WDwS33xeKOMac.
{"copyright_id":"0x21f460b3a985f0be03665d708e60ebcb9a7fb4fcd3543ed013a96cddaa834ae2","isrc":"NLS5K1800091","name":"Rennen Door De Velden","registered_at":"2026-06-22T07:27:48Z","spotify_id":"5u7H7ZrBkTZT2hUicrIy2g","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f460b3a985f0be03665d708e60ebcb9a7fb4fcd3543ed013a96cddaa834ae2. 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/5u7H7ZrBkTZT2hUicrIy2g.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/5u7H7ZrBkTZT2hUicrIy2g.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76041878b5667050a0ba6215b8984d6d181272e6f57916ce7ec49842b7ae2f42. 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/60418dpoLQ48E13jSB5a2L.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/60418dpoLQ48E13jSB5a2L.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba1f6f0e1b72e7dd5700372a2bbd0b84358a451d1e2d2314d819c38cad31e25. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1qHwH6olgsfHfsV59lWnzc.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/1qHwH6olgsfHfsV59lWnzc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24b7262ff0865a381b6ba4d3e1968aba74528cc311cc92ac2c834003a6dc043. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/60LMg8NnJnz0mEkkXcte6b.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/60LMg8NnJnz0mEkkXcte6b.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7170f48a78a4187e598b6f69c79b3ba1282289b50ad8de2bd56001fa165db46e. 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/0a7Q76UHi5X5jhq8J39xFz.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/0a7Q76UHi5X5jhq8J39xFz.
{"copyright_id":"0xef765b0c46a3a5718780da1bd9d415fef6266fd016c8bdec898bad0f9421b441","isrc":"NL5HJ2300187","name":"LATE NIGHT (feat. THABITI) - Remix","registered_at":"2026-06-22T06:33:39Z","spotify_id":"0PFFrqTdAUGb2x5qqvW2a1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef765b0c46a3a5718780da1bd9d415fef6266fd016c8bdec898bad0f9421b441. 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/0PFFrqTdAUGb2x5qqvW2a1.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/0PFFrqTdAUGb2x5qqvW2a1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc56a060606bd2e914a34a13729326995f0bc5a5e8ae7d3378803a3ac7f79a89. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2PMec0qgEG1212bNx6aniG.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/2PMec0qgEG1212bNx6aniG.
{"copyright_id":"0x776f6c17d6b970fc7fdd4c2cc7a1e476b5a0cd7aeaa8857144d70676433370fb","isrc":"NL8RL2438947","name":"Pinky Promise","registered_at":"2026-06-08T05:00:27Z","spotify_id":"4wmTrhqOpMZoh8QSvgW0Rs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776f6c17d6b970fc7fdd4c2cc7a1e476b5a0cd7aeaa8857144d70676433370fb. 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/4wmTrhqOpMZoh8QSvgW0Rs.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/4wmTrhqOpMZoh8QSvgW0Rs.
{"copyright_id":"0x776f6c17d6b970fc7fdd4c2cc7a1e476b5a0cd7aeaa8857144d70676433370fb","isrc":"NL8RL2438947","name":"Pinky Promise","registered_at":"2026-06-08T05:00:27Z","spotify_id":"5bFulnSGkAu7mj3lMnraIc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776f6c17d6b970fc7fdd4c2cc7a1e476b5a0cd7aeaa8857144d70676433370fb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5bFulnSGkAu7mj3lMnraIc.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/5bFulnSGkAu7mj3lMnraIc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e196d9197cb3afd8083859bfd8363437f216a897f43fcca3e0262bbdf9b5c62. 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/0x9NRVHI9CpyFtfG3BCwR6.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/0x9NRVHI9CpyFtfG3BCwR6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bd94d6f02e4786dfc152ec6ace6253ac323e9363cbe859b4a186ba85aca549. 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/3U0BPLo0CzqPaDR40fSkkT.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/3U0BPLo0CzqPaDR40fSkkT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9383104259ba67f5008547a91dafbbfc39dca3b1d09f8f0f4c25dedcd91eb4. 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/0jtCTpEirkTqhsS9UzD4KO.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/0jtCTpEirkTqhsS9UzD4KO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90af0129f722d28db9aecb09391e11fe0f8933c5b2b6832b048d15c66e736d59. 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/4tQ8howNzwjJQMpGk67u3s.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/4tQ8howNzwjJQMpGk67u3s.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b07c9c021aa4fc79d8162bb3afea914db67ee77c29acb525fc36ec0bf8b814. 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/703ZRGW00Fra2Et6d0e4bK.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/703ZRGW00Fra2Et6d0e4bK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe880849627549ce813d34dfa45b6d6295f3ed43c8697c9ef944b9ed5efc115d. 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/2Ee6pnctsfAW37xLVj2YnI.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/2Ee6pnctsfAW37xLVj2YnI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1f345dc5341c0d6f8e692e07eea740d3362924d3c6936408a1fc52c9861cfa. 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/7lPjW4be5L01g0FE9nHqsa.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/7lPjW4be5L01g0FE9nHqsa.
LEMONADE (feat. Chip Charlez, Sarita Lorena & Revie)
{"copyright_id":"0x2e3efcb4da8ab7c4a8091cf939109bbb26af8d852660add9ae6eb70a0d990b66","isrc":"NLS5K1900180","name":"Zoveel Meer","registered_at":"2026-06-18T14:53:53Z","spotify_id":"5FiAQwix8f7xdvumyTwv5K","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3efcb4da8ab7c4a8091cf939109bbb26af8d852660add9ae6eb70a0d990b66. 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/5FiAQwix8f7xdvumyTwv5K.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/5FiAQwix8f7xdvumyTwv5K.