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 0x3cd42ea227d208aaec4b87e2db9455de6a563910789d7611274ea33d01ea9114. 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/e1abb7b8-8c99-482f-94f5-8f811ef1e85f.json and https://artists.proofprofile.net/proofs/artist/e1abb7b8-8c99-482f-94f5-8f811ef1e85f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Powerful Transformation (Bus Ride Sound) (Sound for Sleep)
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 0x7029d33bcbee97eb2817bfcfb9842a02c8dd761c72a5a6f15ac3fb364cff489b. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/PL52J2285278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9d7973cfc650246363046d2e11663b5a709531aa97a8a2f811fcab7c887baa. 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/PL52J2285280.
Night Bus & Rain Sounds (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cdf982c3be1009d351040eb9c1eca4c168facfba002c32700087734c374781. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/PL52J2285281.
Night Bus Ambience Sound (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fbca4ef7ea9aa53b2f5aa1d7063c42b98af6cc3e438d3d59c4dd47db125009. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/PL52J2285282.
Pure Healing Sounds (Bus Ride Sound) (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a4bdef8eea04ce341c3c7f1c974e418fd7d47da46dcba9c4c2c986fa3c086e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/PL52J2285283.
Relaxation (Bus Ride Sound) (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d2ac6f779bb4a4847e03d3c37f0ff82d9994a8923462d99c4e4e2bf1eca24c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/PL52J2285284.
Raise Positive Energy (Bus Ride Sound) (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efc54d16d5442fc6f0f18fa80c5685bab0f9630ecc847d988ff155319bab5a2. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/PL52J2285285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186a2b4ced3911c127df3acfc95edb8fd9ee44a249df816d362fbdf8d28286c2. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/PL52J2285286.
Total Relax (Bus Ride Sound) (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a111591adba01af849cf2dd28a478dac663009f344ae4e835f24668ee6557e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/PL52J2285287.
Beautiful Imagination (Bus Ride Sound) (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b04c479225067927deb410ea61093d619dac300d34b66a508d9f12f675144b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PL52J2285295.
Inner Power (Bus Ride Sound) (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101ec366bb8c3b644a582f86d101d1c14a75450604e41102cf6e15d047ff8c4a. 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/PL52J2285297.
Sleepy Journey (Bus Ride Sound) (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4280e690e92216a52edde3f9c12902deaac8927cad9c11904b0ff0e0be65e214. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/PL52J2285298.
Sleep Cycle (Bus Ride Sound) (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44568147a53adec0637cac7d79a136a5ed45219c51ad6da8897cee6ac0e51b24. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/PL52J2285303.
Bus Noise, Cabin Sounds for Sleep and Relax
Relaxing Bus Sound (Best with Headphones)