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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994bbbf4f5d3f995c4b4c747dc75888859ee628c35725ff863009a027c6c9ef8. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c0491107-12b9-42d7-9866-5b6daadb69db.json and https://artists.proofprofile.net/proofs/artist/c0491107-12b9-42d7-9866-5b6daadb69db.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Música Calma para Crianças - Top 25 Canções de Ninar Leves, Música para Dormir, Doces Canções para Bebês
Feche Seus Olhos Pequenos - Melodias de Piano para Sono do Bebê, Lullabies da Lua,Piano Calmante para uma Noite Repousante
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73551df42ebd0797ff5a1bac04134ffb782e2d2aa761a82ba4559960237ad67. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLL431787205 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd12030ee7ebacc5e7324bcaba65949254059cbfcdd73a2590f797eea8fc33c. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLL431787206 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350bc3cb4bb0cb31d044d9fca84a42c4be568608dce8f0c8556f83fcc924d092. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLL431787211 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bb3588c4114cc3443043c113aff662766521ac13d34d255637d9daf958325b. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLL431787212 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1564b4b6c0bf6b77b65bcf6d734f361e60a03e0cc5a832a160474f5dddb87fbb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLL431787218 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89810cdc945e8988e19e3fa9511909d30097fb698e4d76e3d3e4577be984aa72. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLL431781415 — a six-check JSON result.
Jazz Instrumental para Bebês: Música Perfeita para Relaxar
Baladas de jazz para crianças - Canções de embalar que trazem alívio
Música relaxante para piano - Descanso para o pequeno e paz de espírito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319ea52bb3f7904356237d6b201ccbdcda7467c5671c11aab176de0751c66654. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS922022740 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba94e09b97e8d9bbbc5ff1a82241bf119d0306bd7f41308c98496a3960d5d1e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS922022741 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cb4862c5e3e4e1dc7b75f8f279e45d586e2eff88ca4b7e818858fdd56c5f90. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS922022743 — a six-check JSON result.
Relaxamento do piano de jazz – Canções de ninar suaves que lhe permitem dormir profundamente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5807254976a2c408eaf7fadd630c3cf33dd4c4c2ee163aada229eca3d8ed9e9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS922022826 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd982a05a131ceda889adc7e37d4bd0444ad44d4dc5774cc9fc13cd61f736123a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS922022831 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329dc04b15c599185721747e5a14756bab61b9428766ed2e8f74f3872a59eb84. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS922022835 — a six-check JSON result.
Melodia de jazz solo para piano - Canção de embalar para crianças
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6f1dd16fe9b1a10ddafadce9bca5bae9a839a7052fd45304dadf65cccd18be. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS922001929 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec96b7b013fde4270102cbbff7a597035511a8f432e4f6aae5ad336ac61b8c8. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS922001933 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f19abf9ffc82b078b81e9794cc6eaf324a6c529d30d092ebe630a89f0ad0636. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS922001935 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8749d13cd29affd5ef00b713f8e8c668c166b9028348d1f35cf384c2b928aa55. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS922001939 — a six-check JSON result.
Durma bem - Canções de embalar jazz para os mais novos – Sono rápido e relaxamento profundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9705576dbc1c77a6e38b7c85d943aaa059dbd941c9d420951fae85e59d09356f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS922056243 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b27583bfd5143f39487dae5eaa0aa0161516b11761fd78ee6d6ffbdb4e3b22. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS922056244 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245883d196da5f14921a8755d8e6ba6d9af555d824b9f784de8eeae757fda75a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS922056246 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3ca4e2835f6e4f4024f6aa64eef674c178a172a1a77730d3de00a14f7dbb1a. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS922056249 — a six-check JSON result.
Piano para bebês: Música suave para o bebê dormir, Canções de ninar, Sons relaxantes para recém-nascidos
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Piano Jazz para Bebê – Calm Toddler, Nighty Night Piano Babies Lullaby, Smooth Jazz Room for Newborns, Jazz for Babies in the Womb, Hush Baby Jazz 2022
Jazz de Ninar Aconchegante: Dormir com a Água Serena, Instrumental Bebê Dormir Música Relaxante
Bebê Não Mais Chorar: Canções de Ninar, Música para o Feto Calma
Para Mamá y Bebé: Relajación, Sueño Profundo, Paz Interior, Canción de Cuna 2022
Canção de Ninar para Piano para Crianças: Canções de Ninar Relaxantes para Piano e Música para Dormir
Canções de Ninar e Música Suave para Bebê (Piano Instrumental)
Sons Puros para Dormir: Canção de Ninar, Música Calma para Dormir, Relaxamento Perfeito, Ambiente Silencioso
Canção de Ninar: Jazz em Miúdos, Sinfonia para Dormir, Música Calmante Rápida
Melodias para Dormir: Música para os Mais Pequenos
Música para a Hora de Dormir para Bebês: Piano Noturno Melodias Suaves para o Sono do Bebê, Sono da Criança
Melodias Tranquilas: Canções de Ninar ao Piano para Bebês
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c32c2ae3f3c564c2b3d494b4e24c9f1464a5cec886df947208a50900e73f77. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82532057 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a68a2c3482867fb25b0dcf7973fc7ad7d1059a5bc21ab1ce08363f9491ff4d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82546137 — a six-check JSON result.