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 0x5e939e38c3458754593fad840c4c2d74f4e6650d6d0268e3a7e334a85f91cfbc. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33c35c51-4f4e-4d14-8eea-4af7512888f5.json and https://artists.proofprofile.net/proofs/artist/33c35c51-4f4e-4d14-8eea-4af7512888f5.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 0xa284d95b8a20f540f6f4af0a549c51c2067196798945ccc8676306de66b03367. 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/6Jt2IahkeqCD7fktAiyUS6.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/6Jt2IahkeqCD7fktAiyUS6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817e7769df2a8b808b3efd355c4b3f7ba7d062a6724d24103817d78a90d1b408. 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/4FdYfhh4sS19jqK2e5jfzt.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/4FdYfhh4sS19jqK2e5jfzt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d8e5ed1ac9d6de206348e25ac0f541525b48538dd2855fb631fe3f69d5667b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ZpQF7VA6H1OYMX1CE2YAq.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/4ZpQF7VA6H1OYMX1CE2YAq.
Zói de Gato (feat. Mc Menor Da Ms & MC Filhão)
{"copyright_id":"0x1f86f5e55a8907b932bc40026021d3bf02c8f9d9d215138cb86b9ade9efc35c7","isrc":"ESA112457212","name":"Zói de Gato (feat. Mc Menor Da Ms & MC Filhão)","registered_at":"2026-06-21T20:28:35Z","spotify_id":"052k4gAhtWClgUDtK8RSt6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f86f5e55a8907b932bc40026021d3bf02c8f9d9d215138cb86b9ade9efc35c7. 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/052k4gAhtWClgUDtK8RSt6.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/052k4gAhtWClgUDtK8RSt6.
{"copyright_id":"0xb0d6b567705e4f15ed2ce85c9c3517629fc1ba1f497e2d8feae484d3d3f42e33","isrc":"BKM2L2500079","name":"Noite De Crime","registered_at":"2026-06-04T14:14:44Z","spotify_id":"5jIYOSU4mq1A41lozsrAsa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d6b567705e4f15ed2ce85c9c3517629fc1ba1f497e2d8feae484d3d3f42e33. 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/5jIYOSU4mq1A41lozsrAsa.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/5jIYOSU4mq1A41lozsrAsa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38566be459090243c8d0e4e9df3df1727b6666d50262d0792135af134e0259c4. 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/2AxSzDhKHILJKI2DkZLJAV.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/2AxSzDhKHILJKI2DkZLJAV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817e7769df2a8b808b3efd355c4b3f7ba7d062a6724d24103817d78a90d1b408. 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/0yJY5X0zsJAEIGaog2xVaT.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/0yJY5X0zsJAEIGaog2xVaT.
{"copyright_id":"0x61dd2d81b56d9dfd4abb0a1e0b9d69abb78f92d5d2736bdff45853b8b86b44bc","isrc":"BKM2L2400300","name":"Reunião De Vagabundo 2","registered_at":"2026-06-24T09:04:52Z","spotify_id":"0IUi3Djaxj6qQxdObxJ1Nw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61dd2d81b56d9dfd4abb0a1e0b9d69abb78f92d5d2736bdff45853b8b86b44bc. 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/0IUi3Djaxj6qQxdObxJ1Nw.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/0IUi3Djaxj6qQxdObxJ1Nw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa284d95b8a20f540f6f4af0a549c51c2067196798945ccc8676306de66b03367. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2NLq3lzFFfcVSHbIfNF1qp.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/2NLq3lzFFfcVSHbIfNF1qp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7dd1a0b6292674111ebed7a1e5386df7f9acd8b0ea3861d3e69ad9a1dd9b878. 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/1bpB9HijFiDPvM0A0aojgl.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/1bpB9HijFiDPvM0A0aojgl.
{"copyright_id":"0x6efd6d50225fa3729ca859cf4e8d4b4c41c65de85700c33178eff149d0dd07be","isrc":"BKM2L2400104","name":"Dia Após Dia","registered_at":"2026-06-24T09:04:44Z","spotify_id":"2nQeUB9ScxAkCFIgXBOYbj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efd6d50225fa3729ca859cf4e8d4b4c41c65de85700c33178eff149d0dd07be. 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/2nQeUB9ScxAkCFIgXBOYbj.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/2nQeUB9ScxAkCFIgXBOYbj.
Sem Sentimento (feat. MC Santo Amaro, Mc Filhão & DJ Dollynho Da Lapa)
{"copyright_id":"0xc3bf080a365de56587ed4bf0a5fa3fcf465230defb9b4180f0dbb42dc073e277","isrc":"AEA3A2235717","name":"SET BRUXARIA MULTI BRISA","registered_at":"2026-06-10T17:23:37Z","spotify_id":"6GQvptc6isx5X6tmr6xDaP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bf080a365de56587ed4bf0a5fa3fcf465230defb9b4180f0dbb42dc073e277. 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/6GQvptc6isx5X6tmr6xDaP.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/6GQvptc6isx5X6tmr6xDaP.