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 0x45cf0def46747013001d634bcbad8946a9effe8e2c7f3504118b70cccdc5799e. 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/d6881118-ed25-44d3-92c4-ae2c7217a532.json and https://artists.proofprofile.net/proofs/artist/d6881118-ed25-44d3-92c4-ae2c7217a532.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x9b38e8162fb30437ef229fd2b3bbc48a19e3308dc9ebe0d3436a9d38c17a1ff2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZJDZ2100950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c1c4089fb6bbc0e94d564989724cf4ffa4497dd4fd024c6f087ea7298fb4b6. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZJDZ2100961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4620f8322aa98a5e5c079c0c0b776b3d0c592aae3aa657c857d116d9f93dc6fe. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZJDZ2100964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb841a9e275da48f7259a17d9934bc5c89dc2856d3093e6d90fae3619993f342b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZJDZ2100968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2addbc1853b304e608ffada641946635c8a1b9ec4be087115c8991ce37cdc0. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/QZJDZ2101092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3977978fff4e9e9674e63940ff6bd8876e89b44f2826ce8df901678f027497. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZJDZ2101086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f3700d6f48d5a60c6c46f2f86d1cca850cf8b46ceab12e49a37b54f4c71a4c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZJDZ2101082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c3153b7c31e78512dab95863823bf5dada394fdbbfcb74021779f76e4177ee. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZJDZ2101080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379f0d5c4a9b87159aac80235ed817ba3d888dd18b8254d9d01bf2179a58aece. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZJDZ2101083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e74c608f84f183beac5093903cbe598b250dd1d740b08de9e0430f7449db77. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZJDZ2100969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de960eb2f63944d551ba9a8abcbbb2be0b8a3c9a9411107eeed620d6a3c4a99. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:26:00Z), 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/QZJDZ2101244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d1cb736598c79c813aff578e8d618fcdeed76bf40f5bc940bb9e1335cc7c73. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:23:36Z), 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/QZJDZ2101247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12024e8e35b731842aefebe14ab1337454f7a80d00ca023d4f28ff7c6c5a214. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZJDZ2102174.
Ambient Rain: Rainstorm Madness Recordings
Ambient Rain: Increase Work Engagement with Ambient Music Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e89539e53e32cb030c2d2788317c6d1b8fa6290dab2e543113c7d88490c0382. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZPJ32233867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3204f04e32b2bb24845933eecdaa74eedb17db6b70e0d771348fd310faa2d1d9. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QZPJ32233869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21111200ad8f4c99d46be0e4fe617654d5e8b451c5318333dfb8d5162c0efd81. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZPJ32233873.
STREAMS: Smooth Toned RAIN Sound for Rest Vol. 1
Relaxing Waterfall And Nature Sound to Sleep, Rest, Read
Soothing and Peaceful Sounds of Birds in Nature
Sound of Nature for Seeking Mind Clarity
Serenata Oceánica De Sinfonías Binaurales
Naturaleza: Sonidos Serenos De La Naturaleza Para Una Relajación Profunda
Ritmo de la Naturaleza en el Lugar de Trabajo
Relajación En La Naturaleza: Un Río Poco Profundo Con Aguas Apresuradas Vol. 1
Corriente: Hermoso Fin De Semana Para Relajar Junto Al Río Vol. 1
Dulces Sueños: Vientos Relajantes, Pájaros Y Sonidos Del Bosque Para Dormir Profundamente Toda La Noche
Naturaleza: Melodía Relajante De Insectos En Verano Vol. 1
Los Elementos De La Naturaleza: Relajación Con Sonidos Del Bosque Para Mascotas
Naturaleza: Sonidos De Un Verano Tranquilo Para Dormir Relajado Vol. 1
Sonido De La Naturaleza Inspiradora Para La Relajación Última Vol. 1
Relaxing Raindrops: Collection of Rain Sounds for Sleep, Meditation and Spa Therapy
Ritmos De Relajación: Sonidos De Naturaleza Armoniosa Con Música Relajante
Aguas Somnolientas: Baladas Nocturnas Del Río
Ritmos Relajantes Del Sexteto: Melodías Fluidas De Arroyos En Armonía
Tranquilas Corrientes De Río: Relajación Junto Al Agua (ASMR)
Serenidad Bajo La Lluvia: Yoga Al Ritmo De La Naturaleza
Mentalidad Enfocada: Sonidos De Un Océano Armónico
Bebés De La Costa Mística: Silencio De Serenidad Oceánica
Los Susurros De Las Olas Del Océano: Un Armonioso Retiro En La Playa
Música Relajante: Calma En La Oficina Junto Al Hogar
Oasis De Orquideas: Retiro Acuático Con Música Relajante
Gatos Zen A La Orilla Del Océano: Abrazo De La Naturaleza Y Los Felinos
Ensoñación En La Orilla: Paisajes De Arroyo Para Relajación
Serenidad Nocturna De La Lluvia: Lluvia Tranquila Para Dormir
Concentración Zen De La Lluvia Cascante: Música Relajante Y Ensueño De La Lluvia
Sueños En El Arroyo: Relajante Música Acuática
REM Sleep Music: Binaural Beats Delta Waves
Improve REM Sleep: Sleeping Remedy, Have a Good Night
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd786f20e9fbc3ff7e8341e670252f41a5c493816730124f21f905f1cc2058130. 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/PL29Q2224526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829e98074266c954ed5c390fb01170a1df1caa7f8b0fb66bd81f8f9893bb6008. 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/PL29Q2224485.
Music of Smooth Nature with Bird and Water Flow Talk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85d32d1234fa6f6dce6abc281926c90870a826f397862cf7fe1de58c6ecb556. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL29Q2224472.
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 0x5d373824700bfa2568437689dd9c2e3749d8fe99b6c726050d3606e4faebf265. 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/PL29Q2224535.