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 0x651df90b73294c03768eb3a04713624d3b60701272b954361ac1e2011bbab6e1. 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/d4ad1558-7d11-4a41-8bfd-43bf5854c417.json and https://artists.proofprofile.net/proofs/artist/d4ad1558-7d11-4a41-8bfd-43bf5854c417.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xad4b7c965153108103f97bfe85cfd29cfc61b7e432aba32247116366a5dd4232","isrc":"BRD1E2100097","name":"Aquarela Luz","registered_at":"2026-06-04T10:00:07Z","spotify_id":"5XTShiHeVnUbzSVNRRFvfV","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 0xad4b7c965153108103f97bfe85cfd29cfc61b7e432aba32247116366a5dd4232. 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/5XTShiHeVnUbzSVNRRFvfV.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/5XTShiHeVnUbzSVNRRFvfV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dce5236a4228112c13e33594b74cd8a7694dc2b0c1ae4807c6837668b584e82. 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/7gJDb2G8NntS0efvcH4zZH.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/7gJDb2G8NntS0efvcH4zZH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4b7c965153108103f97bfe85cfd29cfc61b7e432aba32247116366a5dd4232. 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/28x49WEQBd3yYK6C4OU2Os.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/28x49WEQBd3yYK6C4OU2Os.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dce5236a4228112c13e33594b74cd8a7694dc2b0c1ae4807c6837668b584e82. 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/6HbOd1q3jpPgBnAz49SsXh.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/6HbOd1q3jpPgBnAz49SsXh.
Dada Yute No Estúdio Showlivre (Ao Vivo)
{"copyright_id":"0xef6c86965f9417b3df56351eb777da586025caf151d2b3adf3121b249bfd8ba0","isrc":"QMFMG1524792","name":"Rototom City","registered_at":"2026-06-25T09:21:28Z","spotify_id":"4JlEQxXFaOo5cfDwl5W78f","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6c86965f9417b3df56351eb777da586025caf151d2b3adf3121b249bfd8ba0. 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/4JlEQxXFaOo5cfDwl5W78f.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/4JlEQxXFaOo5cfDwl5W78f.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2247053a055a1f728b96b5ed009a98298fbe1f4969ebbf74e3ce71f3dee211f7. 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/4ehMOp5e5vJfGlcNT73t9E.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/4ehMOp5e5vJfGlcNT73t9E.
{"copyright_id":"0xdc322b537aa86bea0b9f4e5feb54e048d8a7daf34a9a2714376696619b7c3de2","isrc":"USA561338804","name":"A Geração de Emmanuel","registered_at":"2026-06-24T17:17:37Z","spotify_id":"2DbjqDd8XuJCBPraKfoSuu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc322b537aa86bea0b9f4e5feb54e048d8a7daf34a9a2714376696619b7c3de2. 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/2DbjqDd8XuJCBPraKfoSuu.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/2DbjqDd8XuJCBPraKfoSuu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777a6895f3374e24eaa366b1e0bf062692055a1519718137e12601f60a1dff07. 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/6aEBvGAtjoEyJ1TmP0k8EA.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/6aEBvGAtjoEyJ1TmP0k8EA.
She's Just My Friend (Message in the Bottle Riddim)
She's Just My Friend - Message in the Bottle Riddim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5484a972477a68a4707b77a72d53f4b6fd9242e313b55d8e2cc01523a9391618. 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/4htZS5lL93RBaYZfNctjPC.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/4htZS5lL93RBaYZfNctjPC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602178d0c1fd96f035da3c105d207da0ea7102ffef8db197161941bd6216df76. 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/5CUtvritrkPZ7nSUiT8a3V.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/5CUtvritrkPZ7nSUiT8a3V.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80fab0e8f3f31422c5f7534e9b5f0574b657b999f662667332a20dc04b936aa. 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/4MCe3HZsKyqpSLnoGHSIhi.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/4MCe3HZsKyqpSLnoGHSIhi.
{"copyright_id":"0x2df179c8697109d4e4ddb01814f5a6f7dc9140f7788cca639e4b8cdaf81f62b9","isrc":"BRD1E2000040","name":"Ainda Dá Tempo - Acústico","registered_at":"2026-06-19T11:44:59Z","spotify_id":"3eRL1enQviaA4NFIAbkeiy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df179c8697109d4e4ddb01814f5a6f7dc9140f7788cca639e4b8cdaf81f62b9. 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/3eRL1enQviaA4NFIAbkeiy.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/3eRL1enQviaA4NFIAbkeiy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43b31ca9337fe27aadc74cdf45aed6a74f232b6b090365824ff61bc9eed9ad7. 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/6S4maC6wed9lK6AJzSWjsN.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/6S4maC6wed9lK6AJzSWjsN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8645cae25ca3f2db717dcd44aa954a86734c0a287cd1221e3b71c8e39e13d227. 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/0hLgXgdXYR5lsVpu6x41gA.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/0hLgXgdXYR5lsVpu6x41gA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43b31ca9337fe27aadc74cdf45aed6a74f232b6b090365824ff61bc9eed9ad7. 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/0x67bEmDm7ju91IYTu0a8l.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/0x67bEmDm7ju91IYTu0a8l.
{"copyright_id":"0xf411c98baf9a78c3a49ccc4b0aaad60d2e95e60518d9304bb679ae3d0f9092f0","isrc":"QM6N21466980","name":"Kingdom Come (Reino De Jah)","registered_at":"2026-06-25T09:18:24Z","spotify_id":"6xROXPPee3dtPogEvUG79P","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf411c98baf9a78c3a49ccc4b0aaad60d2e95e60518d9304bb679ae3d0f9092f0. 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/6xROXPPee3dtPogEvUG79P.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/6xROXPPee3dtPogEvUG79P.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e640056ad904f526e2dff40a6457f9b7034f20d7cbd649894b091e7162924d9. 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/3G6ydQHTfcqotD36aMZnv7.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/3G6ydQHTfcqotD36aMZnv7.
{"copyright_id":"0xf9dadb2ae2acb1bb6202bfba1ed7fba6898312ac238884ed8b70282cfc498a1c","isrc":"BX3FM1900006","name":"Todo Dia","registered_at":"2026-06-21T02:54:09Z","spotify_id":"2q0k16fKNtp8G2z9qKFVlb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9dadb2ae2acb1bb6202bfba1ed7fba6898312ac238884ed8b70282cfc498a1c. 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/2q0k16fKNtp8G2z9qKFVlb.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/2q0k16fKNtp8G2z9qKFVlb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7840a5cbe1d53e0cdad38e4031b835511c674e008133f56ad47807164ff62280. 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/0ejIuyPf23kkGuIjFnQ3Km.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/0ejIuyPf23kkGuIjFnQ3Km.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e8fed9c23ce65ef6e514c69635c34a9f002162616aa92f191b896acac9c5d7. 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/2QMIepg6ysCC54jDSHUZ2Q.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/2QMIepg6ysCC54jDSHUZ2Q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf5d099e74ed479509b40daca5cb9ead03935954d51674a510a0ffc58ea87d9. 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/0kZMzrMqhdqbkpS76H4IWa.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/0kZMzrMqhdqbkpS76H4IWa.