1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x0aabadb333118be121a6a3f7b9d6e153c832a840a861bde60e866470b6ee7cb1. 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/ac5c21e7-8a62-4f92-a10a-5584603ae86a.json and https://artists.proofprofile.net/proofs/artist/ac5c21e7-8a62-4f92-a10a-5584603ae86a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
! ! ! ! Violão ao Som de Fogueira, Música para Relaxar, Música Relaxante, Violão Relaxante, Música para Dormir, Som de Fogueira, Ruido Branco, Som Noturno, Paz, Calma, Relaxing
Violão Relaxante a Noite com Som de Fogueira, Música para Relaxar, Música Relaxante6
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa489355dcd67913885dbd06fb35d0e1d908bcd37b1d4152b6c77e45c5ea5510d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544221.
! ! ! ! Violão Relaxante e Som de Fogueira para Dormir ou Relaxar
Violão Relaxante, Música para Relaxar, Acalmar a Alma, Musica para Relaxar, Calmaria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0423338d1fddb74e23cfda28be899f5f2a326dc8653c8e3e07d7aaffd9872eae. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544198.
Mais uma Noite de Calma, Paz de Espirito, Musica Relaxante, Violão para Relaxar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907c9a4ca26c1f2226d2d570e18fd24419438b1298c6d0790afdcbb204c04341. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544212.
Calmaria da Noite, Musica Relaxante, Acalmar a Alma,Relaxar, Espiro Livre Musica para Relaxar, Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50167e8c80c83e92790757dc6d24c053906525090c624c94dd6ec5c8162f747. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544226.
Violao da Fogueira, Violão Relaxante para Dormir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab96778050cdbb6e17b56002a8f65b5256e40f0a2e072707c928d7846c20465. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544261.
Paz Relaxante, Violão Relaxante na Noite, Som de Fogueira e Lareira, Curar, Música Relaxante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324f37f98678af6d25a72e02421dbd371a1b56a3a324ed35a71bf17bdba3b829. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544296.
Um Tempo Atrás, Violão Relaxante, Música para Relaxar, Acalmar a Alma, Espiro Livre Musica para Relaxar, Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f12c16f38ce855e4adcfb3516d1f325fcc023eafefced30cd0f3466c0b850d4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544310.
Calmaria da Noite, Musica Relaxante, Acalmar a Alma, Espiro Livre Musica para Relaxar, Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa47fe7d7095dc0a7a06b21524f827e8860097479509e9dd68e9ab9c1b84715. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544192.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Violão Relaxante, Música para Relaxar, Acalmar a Alma, Musica para Relaxar, Paz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8196d9d0dc9907842141e233710b5107608a17f5e814cb4fb50dc4e2c7138cbd. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544205.
Paz de Espirito, Musica Relaxante, Violão para Relaxar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa742ac21276eabc8c107633325c51ee067ac21b4776dd81e282a65f041976f91. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544219.
Paz Noturna, Musica para Relaxar e Ficar em Paz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401dd1ef0d34ccab09c415dba963e2e01e805c10ddb1769803d0ec7a189f9ae7. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe95b11073fcc222fe642ffc9906b43606b5c6a724412ad5ae707dd86586219. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124384a8c62a8ebad87b69ea37bc2365e78ff4af3020cd90f2e1c285bd2a0ac5. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544247.
Tempo do Relaxar, Violão Relaxante a Noite com Som de Fogueira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6576d17c9fb89bb2b335e579834c4ab6e095e6371b8c1eb45e02cfc646fe4b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ed55d592ecb14f0438c64e2c2021cf1d2dfe24bdf092a29c0900d0cdbaa99a. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544268.
Paz na alma, Acalmar a Alma, Musica para Relaxar, Calmaria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127fce5c2df4cbc0f6653f6e1df8486e167aa6c99de0284563b5fcdad364fc45. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544275.
Paz Relaxante, Violão Relaxante na Noite, Som de Fogueira e Lareira, Música Relaxante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785ea2ff8fd162b1c7a5a7fe1ae7bee162aa07fd5e4e5f9364535377d30f609a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544289.
Violão Relaxante, Música para Relaxar, Acalmar a Alma, Musica para Relaxar, Dormir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b9a15daebf69edb7a694b4c68bfb74ddb7af794936360f332a4644ea23235b. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544303.
Violão Relaxante, Música para Relaxar, Acalmar a Alma, Musica para Relaxar, Felicidade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d3ce75fcdd53383dc37e0094155dcd638a0287f8717360c101c306df74752c. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544317.
Paz na alma, Acalmar a Alma, Musica para Relaxar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbb3e90990a214bab754fe631f7751253eebe5e06917221ee62e802f32de0f3. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544324.
Violão Relaxante, Música para Relaxar, Acalmar a Alma, Espiro Livre Musica para Relaxar, Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11618aa620b6aac805638ccd607694b38faca590e3e605471b8d4630f57a501. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26b6f59bd1998c35cde6ed286bfa49ef106f50395c3f8e9f8444c0649ae83b6. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2544337.
! ! ! ! Relaxing Music for Peaceful Relaxation