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 0xebba4e52f99e6e56c291f5ee032f9a1bca0a890e8505573b3404292cc0d99842. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/88053e23-ea7e-4b38-82fa-9cc3a610e61b.json and https://artists.proofprofile.net/proofs/artist/88053e23-ea7e-4b38-82fa-9cc3a610e61b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Binaural Birds for Cats: Softened Shadows - 80 88 Hz
Cats and Birds: Binaural Serenity Sessions - 92 96 Hz
Purrfect Harmony: Cat Relaxation Melodies
華麗なる猫の居城: 高貴なる猫の贅沢な休息
王冠付き子猫の湾: 優雅な猫の静寂の場所
王室の猫の住居: 貴族のための豪華な隠れ家
猫的午后梦：萨克斯风爵士的轻柔音符
ネコミントの城: 威風堂々な猫たちの王宮
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 0xe8ec846414c98b435060ab8c03555b72f8d68ca7b47c3860983c8bb9465fabdd. 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/GXC5E2420057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3015409f122aa119a39721b438551e6bd3f9adf89ad63cda344cf3e0edade37. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GXC5E2420049.
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 0xdf446baf1de5a922300a8c5126c8769c254f6e11a0b5247c86741e1e863537b1. 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/GXC5E2420058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3063025948dbbd0c65137fb2bdc4841a1df150dd079253d7f33aff80fbf9454. 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/ESA012406113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcd39e72d8de4340b98039bf8c5d2884cdf7f689a7a7baefcd9ab8a4b013822. 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/ESA012406119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c0bd12e2973dbb401265a136a2721b9981850546faac3168f41a6c1f480dd3. 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/ESA012406118.
Cat Soothing Harmonics: Gentle Purr Sounds
Feline Ocean Harmonies: Calm Music for Cats
Cats in Rain’s Calm: Binaural Birds Nature - 92 88 Hz
Binaural Birds for Cats: Feline Soothing Sounds - 92 88 Hz
Binaural Fire Felines: Cats Melodies Unleashed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172e8302ee9bd1a239d33fb59bec5ff8fbd3fb2e6ba4fde1e98b3fc7bf79749c. 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/QZZ972484624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8779737e4fd9eea2a229a8de9e8b6f5286210f90cd71b131659b211f244cb8bd. 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/QZZ972484626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc571ddfd30483b77e3c08694f63de8cb90d87cdfd5d73225c62f05f7b70eaf4. 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/QZZ972484627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc331bb5df91800ee7c2ee10d273de08dfb66aa2257af67a1324771f95724a806. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ972484622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddadc11073f7fbefd2dd738def87a51e2a5cfe4e2599fab0f4efbb9c2ff28e1e. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/QZZ972484628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2863dc037b41222332f25eb06c79ed1d186207f43d58fdc1b14daa213c918225. 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/DEXO42337186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902d85dac6c3629f5037d5519ac83a785a78e78f0cbc4660d1e21d54c0c493c7. 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/DEXO42337190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8503e8a07d9e9688506feb843ed58c3bab08966c3bcfb30ca7bd4f568a2fb960. 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/DEXO42337185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf102254e157986e128ad5101e887f9acbcf8d78e4da746a70a2adb3d84d2d73. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEXO42337187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d04a8dbf28ad422f1741ed1f950b85f58481a7d007a234c2ca42627354d736. 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/DEXO42337188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6935c8ab75e2b4a8489b784ee1c33dd1a2c25801566c3824ee126ad7ab497111. 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/DEXO42337189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20919da94e5b819de0e551a2b3946e9dc8d02350d50a4c7265d11e29c48c9d13. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/DEXO42337191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e2c0b2cb2b5cfdef462acf17c2387a87bfc889d836fca5023f651e7fa34f56. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEXO42337192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424762dc8202915a807e0bb5170a17e2508873a69482713031b458760ede35b6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO42337193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba4b9150f5a5e93bba818cf34b9b13c27efd3e118d09fc84d5ec8d87cfda0f1. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO42337194.