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 0x844bdc49aa55b17e2a57c5b52c6a09f1a9b7e5e27b49bafd9b48acab63aefb1c. 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/06934c59-c5e1-42aa-ac4a-fe6879314891.json and https://artists.proofprofile.net/proofs/artist/06934c59-c5e1-42aa-ac4a-fe6879314891.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Caminando En El Bosque (Sonidos De La Naturaleza)
Música Relajante Para El Bebé Que Duerme (Sonidos De La Naturaleza)
Cantando En La Lluvia (Sonidos De La Naturaleza)
Los beneficios de escuchar música clásica para niños pequeños
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 0x4539cc6d19a4362d0d225fdb619726aa413b990bc920563f9f6b861829333b3b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLGM12136864.
Sonidos De La Naturaleza Del Sueño Del Bebé
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbeb93c5588f6fc30124c7e255751e6045683d8841994a3cbd5d52975668a87. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLGM12136380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cdc44eec2b58118f5d47cd268d88f6442664008eccd61af1008845060364a6. 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/NLGM12136381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fcc24e367d4bf1b4b075287ee641cc35668c58cef0894313ce50a945473e4d8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLGM12136388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af3a66abfbe26cace2e76db14a7261beef617af226cae578e1b92e75c25b11c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLGM12037022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc29f67fa9ef38d37f3faef8fd505cfca5c6d459a4685dbe5ffcba094882bc57. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLGM12037023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce541c665e966821b4646dabc1851a920a971def5d0654928f7a6afcd58847ab. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLGM12037024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8411424777a3fe53195d9ce62fd1597253ced2a8ef38d8520a9c53159c1a990b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLGM12037025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05479a8ce97441e8ab7c85fcf73ddb345e39f0950a750091583a7a8ebe3d94d0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLGM12037026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ae8ee2ece533c3eceeb91a242c0fcd342067827a4225ae87579c1e10279855. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLGM12037027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6619a5971bcf77ba8c65d71c18fe3ae647c0a895b0c7067573cd265a8d3567. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLGM12037029.
Canciones De Cuna Y Sonidos De La Naturaleza (Piano)
Música Instrumental Relajante Y Sonidos De Pájaros
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1ff19083c98dd9bca96a1d015520e5d22d3fad957f5fb5a0a88e99a8cd69be. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLGM12036783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f3df157efd06c85b40580cb56cfaec28bf622fe09583eae008e62718e7ed4f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLGM12036794.
Música Relajante Con Sonidos De La Naturaleza (Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38eafb89d781b461e0e418710c6fb6f551e3f1436426602a0b8bca4e0be5cb00. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLGM12036543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88975085b6a10103ca25031c8f13d3b64c80699178557e434166b741692ffbda. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NL6VJ2232387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476c65f01c0fec39dc327fb87c5116cc1f4da2b440ca10fbd25c70b6872d9c44. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL6VJ2232372.
Canciones relajantes para niños pequeños
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263a11ae5d17dd6fdf86b302f92de59c934630a2f5e19d501be5758703a7de8b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NL6VJ2232341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa375af4aa5b5d67df006254adba1f3d25d71eff155111945344bdde59e155dde. 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/NL6VJ2232342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3d1b544268043a9d8bebccf17915c3035fdb64dc0c5e99b825ad022a771671. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL6VJ2232343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775e30eb9ad3c9b862e60dc3997cfce61cc3bd13dd68f5015ee3930961907f18. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NL6VJ2232344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fbf13cee43ee8eab310070269629a0c87e76cbeb00b01237c2709acddf982d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NL6VJ2232345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb69826e022ef71e1bc3d3a2e7a59d24a693aeb1fae322e1fe819e0e4ad8a1f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NL6VJ2232346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599a57bd2577ce63182b685d55d9a2b82cbd07fcc69f9aff4cd7b901c1ccc1be. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NL6VJ2232347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9448322b4a81be730b188f9d6c29b69a4e120a7f95f1622cb2c9c85c65c89f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NL6VJ2232348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf695b521c8ecf4939365f5ed4bf1d202693db1a58b59faad8b8a73b4f1828f47. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL6VJ2232350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42e085e34148d40bf2ee9ec3cfd6ac4c758f0f2674e6f5fd945fffc9282fc48. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NL6VJ2232351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa285de4197de46175c4d976e94a9765e4af834842a5af8299c3e440422c1db. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NL6VJ2232352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74b4c6d23f9de358450f0d8f7a6306c4ae3c89c947445c73e0f569d3fffe326. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL6VJ2232353.