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 0xf17a6aaa0e2137e47d9c0e58335deb37929650263b77a1b8dd1e25df27826c2e. 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/b9676962-744b-4293-876f-d5fe12146c8b.json and https://artists.proofprofile.net/proofs/artist/b9676962-744b-4293-876f-d5fe12146c8b.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 0x80250b6946f7362ad65509827f383731504bb06d53fd59902f646aaed163daa3. 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/QZWDE2460435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553f6363533265875413c95e82ab55bfa3ead2af9a9912fe61c18038f8403a7b. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDE2460428.
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 0x3abb96b6b4ba1dc7d43c0e831e30c0aa1080dab9ec1ce1434e5079169a206e95. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZWDE2460443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7cc904dff5ab3ebe4782ee76f822c7ac17a82d18065e14cd37e03ad021426e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZWDE2460448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b0751d15acabb6c819b18027e5d9f394ae7e7f137fd4bccec4906ee133d223. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDE2460455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ddfb3dd63419026fe6dc95662a32206fede995be12695c15c89e0abfb650ca. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDE2460469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a8bf607251256dcdc0ecf59d6490cdd6442eb54ec51f30864d23d9e895260f. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZWDE2460477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242d6fd47459b3bc07b6f3347faf87ac1416af1959e820d027887f3d86d5247e. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZWDE2460485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3288bffc0d5536662cb59b019b7f96a7b231a91afb8dfb5b9c8e8e86214b6aa1. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZWDE2460492.
Meditative Calm: Resonant Music for Focus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3681b7347f5edd8773c33f17fd6d971e72a3071cded474554846b8ba8e99f42b. 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/QZWDE2404249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238d32651ac267cb44b16d29c4f1d8edcc59ed48ba43b67cb4e57cf28c84d633. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDE2404269.
Gentle Repose: Chill Music for Relaxation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a8bafa9e4234c70d35f85770494aff55585bfb999dcdfed2274e9646e7f5ba. 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/QZWDE2406122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe3918e2f5ca9af76ed5b856bf5042643f6d3d0b1941049269fc927a3ab38bd. 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/QZWDE2406132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4a9d87c4c3947cf885ef5b312c163806e8b95e1629a2a0953ca97262fd5207. 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/QZWDE2406151.
Baby's Warmth: Soothing Fire Sounds and Music
Serene Birds: Binaural Relaxation Soundscapes
Rain's Nighttime Serenade: Gentle Sleep Melodies
Binaural Birds for Cats: Softened Shadows - 80 88 Hz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337aab550e98841621a6217b15d0b9dd5c5240192df83405b8b83e6881777be4. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBWUL2492102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d274fae1440aa05a320d67818c147d49320ce5b335b3be0af6e579eb310fbd. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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/GBWUL2492109.
Echoes of the Waterfall: Ambient Nature Music
Calm River Retreat: Peaceful Stream Relaxation
Binaural Relaxation: Peaceful Ambient Sounds