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 0x9eba3e8b9e878049d79d7413e1a789588daa4e9c9353ed30fdb147bb7878e4e3. 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/e6571c5a-12ee-4daf-8140-4a7a7052b739.json and https://artists.proofprofile.net/proofs/artist/e6571c5a-12ee-4daf-8140-4a7a7052b739.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lullaby Moon: A Dreamy Baby Lullaby Journey
Music for Evening: Dusk's Melodic Embrace
Calm Stream: Gentle Ambience for Baby's Sleep
Moonlit Slumber Serenades: A Baby Sleep Journey
Music for Relaxation: Gentle Melodic Calm
Sleep Serenity: Music for Peaceful Nights
Infant Idylls: Gentle Tunes for Baby's Day
Ocean's Sleep Harmony: Music for Quiet Dreams
Happy Pets: Cheerful Music for Your Furry Friends
Barking Harmonies: Day Out Music for Dogs
Calm Streams: Soothing Water Music for Cat's Comfort
River Tranquility: Peaceful Sounds for Pets
Fireside Spa Relaxation: Warm Ambient Tunes
Flowing Water Focus: Study Meditation Tunes
Cradle Songs: Ambient Music for Baby's Nighttime
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 0x6bb13c95e4ffeed1beb992e3f95407d69719f5f3212f46bd25964e2316a7a05a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USLZJ2401691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabf827dbfc7d00523d6acb40215a649ade12be489f6957d4f3af9adba0b4a36. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USLZJ2401698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38699ee19171df0bdcfd53d6d8f0d70d023ff7c21e4c6d6e4d994f2f3c7ab22. 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/USLZJ2401739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4bdfe062f58600b90757d1d3f5ca93c116ed3913005d0ac754ba93b37baad8. 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/USLZJ2401753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae85e401b042f5c9007ad7b890250b8b3f7d82937cd2fd3331484608b88f8ab. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USLZJ2401761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588d1a9d5e4f06359b35f6db42f909480dda2dc213034125b04cb5a1535afe47. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USLZJ2401706.
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 0xfcce95eebf1316483ecc35f682aed3f95d474f5326fcc88a96b26c1b469064cb. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USLZJ2401714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfaad5dd1cc213dc431c8ed98583ec7343e403108e703ecb9020e78c38b9d78. 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/USLZJ2401719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746732134929e812023dee58f9b7040abfeabde0ecf198d420a0a9ba601b642e. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USLZJ2401730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369d09040d149c81bb60ab2d9cc0cd5eaf755707b0bc55f475e6694bd55ea356. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/USLZJ2401748.
Cat Serenity: Melodies by Streams and Waterfalls
Blaze Harmony Baby Harmony: Music Cuddle
Ecliptic Equanimity: Chill Music Fire Fantasia
Tranquil Melodies: A Journey of Relaxing Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534e19583e72a792439565d9dbd85270c0c49a6f0b9048b7d7fe8a78ea511ab9. 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/SE5IB2257729.