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 0x6be6924da3c92f20aecfe0d47af717df3772de9cf6617b786ba40f604edfbe2e. 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/1c697104-d06c-475a-b97e-6a473685f4e3.json and https://artists.proofprofile.net/proofs/artist/1c697104-d06c-475a-b97e-6a473685f4e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Thunderclap Rhythms: Music's Dynamic Force
Binaural Birds for Cats: Softened Shadows - 80 88 Hz
Concentration Creek: Binaural Bird Harmony - 78 72 Hz
Gentle Resonance: Relaxation Music for Ease
Music for Concentration: Calm Study Tunes
Binaural Aviary Anthems: Birds of Rhythm - 92 96 Hz
Nighttime Ember: Binaural Sounds for Sleep
Binaural Lullabies for Baby Sleep: Gentle Tones
Thunder's Cradle: Binaural Sleep Soundscapes
Meditation Frequencies: Binaural Harmony
Study in Rain: Meditation Ambient Sounds
Cozy Naps and Serene Flames: Gentle Binaural Journeys for Calming and Reducing Cat Anxiety
Earth's Liquid Flow: Binaural Yoga Soundscape for Inner Harmony
Water Meditation: Binaural Waves for Deep Relaxation
Binaural Focus Resonance: Clarity Echoes
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 0xe13728057136688fdf667d91a6e1868a666bb456b8fc83a7ae6b695dd9d3fd55. 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/QZFML2321031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba903674676c5c40a01eea2f2a5e99c1ecadaa817d329a40dd756005670d9a5. 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/QZFML2321032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27975dc6eca246f047598a2f7ca0fde6da4c2b36901f1ea8bad1cd31a0051c4. 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/QZFML2321033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabc27b1b697c9b249e13741d53224580c6a642a46a6a4a00750274ce0a6eef7. 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/QZFML2321035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3367e96d03ff4ee338acfb31d2065ca3ba813e426d06d024589b70dcb867a87. 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/QZFML2321036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ed34d92adb67635a677692a8ed2d38e14e28b74f09a17891c409e5b35c2a34. 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/QZFML2321037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8dd3f3b63fac6a995926484274bcc5c6c524f67384c1dc5cda6971afa63800. 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/QZFML2321039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7048f28c996b0772f1ef238a400c61e3400c63b5bb62a1ff7d97c0dd7b3c5c. 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/QZFML2321040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b442d8a0e65b5c7ad574c250a53bb15e3901e43bfc4acc8491d17b70d8fc9f. 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/QZFML2321038.
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 0xef5e028e251886946b93abfed6a55d769a2c6c059a75490e4909ecc6effaf1da. 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/QZFML2114568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86314b48767b4cb17d218184335a2371e121872488aa020a9144a19b717ad095. 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/QZFML2114569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4059d7f21049cfc301e677fad3405eef241104ec8e0e5225d22277e4b406ab. 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/QZFML2114572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396ccabcbfc021bb295acdeafb07b613f60f77ecfb6a490d351ab0bb063e194b. 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/QZFML2114580.