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 0xff3fc7024c25622caecc62e9ff425e29cdbafb7ffab2c6fa5f0fc8802c1e4deb. 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/8687f780-65a4-4f18-9830-f21f23da283c.json and https://artists.proofprofile.net/proofs/artist/8687f780-65a4-4f18-9830-f21f23da283c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x4cbbd8b8fd4da2bf70f19724f7f816746cad31dfa14b6234b1b5207d6075f209","isrc":"QMFMG2322813","name":"Cypher Mnd #15: Santoz & Brapis, Vol 1","registered_at":"2026-06-23T08:40:29Z","spotify_id":"0nW5qwttntrxCrNp1z3mqC","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 0x4cbbd8b8fd4da2bf70f19724f7f816746cad31dfa14b6234b1b5207d6075f209. 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/0nW5qwttntrxCrNp1z3mqC.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/0nW5qwttntrxCrNp1z3mqC.
{"copyright_id":"0xfdd5fc9bc4ac1bc0066574f89955fb6ccdac2ff151c848e3c80665d79b392c4c","isrc":"QMFMG2323127","name":"Cypher Mnd #15: Santoz & Brapis, Vol 2","registered_at":"2026-06-24T13:19:20Z","spotify_id":"2PXcO8CnxVIC3NzSRVmtk0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd5fc9bc4ac1bc0066574f89955fb6ccdac2ff151c848e3c80665d79b392c4c. 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/2PXcO8CnxVIC3NzSRVmtk0.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/2PXcO8CnxVIC3NzSRVmtk0.
Like Boss - Remix (feat. Duki, Bizarrap, Akapellah, Polima Westcoast, Moonkey, Zanto, Santoz)
Like Boss (Remix) (feat. Duki, Bizarrap, Akapellah, Moonkey, Polima Westcoast, Santoz, Zanto)
{"copyright_id":"0x32bb4fea832ead23fcf0b02f0b70e3c10a5d5e998fac041631f04cf355e819c2","isrc":"UYM121903567","name":"Like Boss - Remix (feat. Duki, Bizarrap, Akapellah, Polima Westcoast, Moonkey, Zanto, Santoz)","registered_at":"2026-06-04T09:05:17Z","spotify_id":"2H2pkZBzWDX2TzGW7sp014","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bb4fea832ead23fcf0b02f0b70e3c10a5d5e998fac041631f04cf355e819c2. 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/2H2pkZBzWDX2TzGW7sp014.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/2H2pkZBzWDX2TzGW7sp014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5449ab25b9a1f24354003182d91a567a16fcf3d430dc97ef513bdf9dcdb715b4. 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/5b2nvUoIVPjCeVeQ6DPcEH.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/5b2nvUoIVPjCeVeQ6DPcEH.
{"copyright_id":"0xfd8527ee228fa406c8a47adbd2dbf30418ba49314a9f8070c2b8c0fedf1fb630","isrc":"AR78A2300001","name":"CYPHER, VOL. 1","registered_at":"2026-06-05T08:43:58Z","spotify_id":"6vigUc0kSdD3kvVPEfgjrN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8527ee228fa406c8a47adbd2dbf30418ba49314a9f8070c2b8c0fedf1fb630. 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/6vigUc0kSdD3kvVPEfgjrN.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/6vigUc0kSdD3kvVPEfgjrN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6919240a93a54e5bcc3b5ffd31cca35f51b2ba94f6c01e413bbff5d11511a320. 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/0cb9ckfF5AZQynYVTKg06v.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/0cb9ckfF5AZQynYVTKg06v.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22882ed295ff5bef918a6d8223f3f81d97725c333e1d13c2c12804b5972b8190. 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/0FmvPSRXyZZp1Z5SSt0wcM.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/0FmvPSRXyZZp1Z5SSt0wcM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78417ecd3a4f60dd42ccc4a7450276b3c6fa453b42259ea90c9fe224c4e39cf7. 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/1ja01u83Emnnw9aT8NM8Qr.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/1ja01u83Emnnw9aT8NM8Qr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfca403c6d231a84b3860d90a00881cf49f216d1d339a20a090531037f4bd220. 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/3uiKd8RJLvLgfHveWW90Fe.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/3uiKd8RJLvLgfHveWW90Fe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae60740042f3c99a46e8f18646ee8f9e95216a507aaeb7b29b689742b324081b. 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/7ikW8SL8ImUBohM5XC1JfT.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/7ikW8SL8ImUBohM5XC1JfT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a3154f06b9d15b8ce12ca00ccb3711885b654e238e3729a65bcd85b244bb1c. 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/1MfBcmTrp4S4xw6eDluacK.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/1MfBcmTrp4S4xw6eDluacK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5968890429df6d1c03cedf53c56b8813d6113a2bdffe74d70ff2187d1531fc5. 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/2xmM9A8TrFiwUV7Ej6FGy9.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/2xmM9A8TrFiwUV7Ej6FGy9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a298b8bb1a6b8a3291ac74de3d6803a8c4640f56106b866731035bf8b4c6a61. 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/0MbHB6J0fAroord0VamzkK.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/0MbHB6J0fAroord0VamzkK.