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 0xae65699ae8d17b678de6d8c441222675bf2c06605325fe72984926926b25c009. 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/1c02fb95-9056-4e96-97dd-c4ba91a725d6.json and https://artists.proofprofile.net/proofs/artist/1c02fb95-9056-4e96-97dd-c4ba91a725d6.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 0x88975085b6a10103ca25031c8f13d3b64c80699178557e434166b741692ffbda. 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/NL6VJ2232387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66a68e0f00fea54147ab02da13d9f19980c0a8eafbc21befed56576e0bc7458. 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/NL6VJ2232371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476c65f01c0fec39dc327fb87c5116cc1f4da2b440ca10fbd25c70b6872d9c44. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL6VJ2232372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74edde6db2be3ea251b06e5da8dcf43d1dc849924243055f206084c120db2227. 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/NL6VJ2232381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc293f16984c15ae498877825eebbe589ad358ad73a36f4ca46ca0a505653d85. 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/NL6VJ2232382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003ad3bd846e5d34c5c22c3dbfc211cf8424fdfa923bc3f65709f9d13d5db911. 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/NL6VJ2232385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc889fae873e7af8feb2debd233e06a918c2ab7caad604b09df1fc55c4927f7fd. 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/NL6VJ2232373.
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 0xf0034050483b019b53f052d749ead1587ed91b77592b6d01b950d1a8cd81fe69. 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/NL6VJ2232374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa8f0ae0bf8ff7af7f699f85905c54aaa523138d07916b3f2e43a2f6526818c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NL6VJ2232376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeceeb9fa5484846cc41b6f48fab8d17db14368d6b346306bea33144e2aaa862c. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL6VJ2232377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d84164346e770322ac3b49b63d4c324a530c72ad495a8f497a44a6d065a7d26. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/NL6VJ2232378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799029685c09c7a8698aba6e3f7839e5e5003012d7ecb1ae4a64e704afb08f91. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/NL6VJ2232379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b568a93ee579c07472e4370f4dc8c20aeae0c158300578902fa2ee321d1ee8c. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/NL6VJ2232383.
Canciones relajantes para niños pequeños
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263a11ae5d17dd6fdf86b302f92de59c934630a2f5e19d501be5758703a7de8b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL6VJ2232341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa375af4aa5b5d67df006254adba1f3d25d71eff155111945344bdde59e155dde. 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/NL6VJ2232342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3d1b544268043a9d8bebccf17915c3035fdb64dc0c5e99b825ad022a771671. 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/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 956312 (2026-07-02T05:09:12Z), 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 956312 (2026-07-02T05:09:12Z), 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 0xa603c8501d5f49d3a87f391439870e9792d271f9b0513a9d447d8e1c26f8a695. 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/NL6VJ2232349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf695b521c8ecf4939365f5ed4bf1d202693db1a58b59faad8b8a73b4f1828f47. 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/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 953536 (2026-06-13T17:25:41Z), 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/NL6VJ2232353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ab132fe9871b78a81df6175bbab96d4f8183afa94b11309ee9568fc2208f89. 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/NL6VJ2232354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac689f767f93729952da580bde066840316881c3cf064c8f5b296f186805fc3b. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/NL6VJ2232355.
Caminando En El Bosque (Sonidos De La Naturaleza)
Música Relajante Para El Bebé Que Duerme (Sonidos De La Naturaleza)
Los beneficios de escuchar música clásica para niños pequeños
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b99824f66430c296c3c228971e00207d35a2d08674fd19f720adb7cc54b381. 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/NLGM12122768.
Música Relajante Con Sonidos De La Naturaleza (Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d49d8eb4dcc2681045ce9fcbd54e5858c4315f2f0d3be729b761e6f6ce269e. 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/NL6VJ2516826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb56fefbd6ce47ea529b5f0fbfaa5c7d7317b6d15f9f1e8458426ea11dda253. 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/NL6VJ2516830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb91e6896e21711f335bd8ecc94d65b4f4e22c9a296c469f83e2f0316ce4ea19. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/NL6VJ2516824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce45762ef3237bbd74114ae08f64bbafc90f5ad8758d2d9ea86ff7c46b4622e. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/NL6VJ2516825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c92f63ccaadc5973e41f14a9d9f7bde9bbeba730d505b14b6fa6f0fa951221. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/NL6VJ2516831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4116aa76ec63f713b5351a848aa3334e75dd438314f80cbca6476844ddeaee5. 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/NL6VJ2516833.