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 0xd8bf6751defe35327f1a7da71b70bad87dcef7789393b87a6e7fb9982db805bc. 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/6e654662-66ed-41e6-9a74-f8accc8b0dca.json and https://artists.proofprofile.net/proofs/artist/6e654662-66ed-41e6-9a74-f8accc8b0dca.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Rhinestone Cowboy (Solo Piano Instrumental Version)
Laughter in the Rain (Solo Piano Version)
Arthur's Theme (Best That You Can Do) [Solo Piano Version]
Golden Pond Lake Loons (Melodious Loon Sounds)
Lake Loon Soundscapes (Nature Sounds of Loons with Music)
Amazon Sounds with Mood Music (Relaxing Rainforest, Parrots, and Jungle Sounds)
Waiting Room (Music for Work, Office, & On Hold)
Nature Sounds with Mood Music (Ocean Waves, Forest, Waterfall, Rain Sounds)
Gregorian Hymn Chants (Zen Buddhist Spiritual Mantras)
Popping Piano for Parties (Upbeat Instrumental Dinner Party Music)
Nature and Music for Love & Romance (Romantic Love Songs Music for Sex)
Worship Hymns of the Hallelujah Chorus (Prayer Music for Church Service)
Pachelbel's Canon in D Wedding Prelude (Church Organ)
Mendelssohn's Wedding March (Cathedral Organ Recessional)
Jesu, Joy of Man's Desiring: Wedding Prelude (Celtic Harp)
Air On a G String: Wedding Prelude (Bach)
Relaxed Baby (Lullaby for Babies with Nature Sounds)
Tropical Rainforest Sounds with Amazon Music Beats
Studying, Concentration, Thinking (Teacher Classroom Study Music)
Call of the Loon (Common Loon Sounds with Music)
Morning Watch (Music for Bible Study Hymns & Quiet Time)
Loons, Loons, Loons (Loon Sounds with Organic Ambient Music)
Babies First Music of the Rainforest (Baby Lullabies for Bedtime)
Amazing Grace (Greatest Hymns of All Time, Spiritual Songs for Easter & Church)
Ceremony Wedding Songs: Canons, Preludes, Marches
Mood Music for Birds (Parrot or Cockatoo Bird Music)
Babies First Hymns for Quiet Time (Prayer Music for Babies)
Echoes of the Loon (Loon Sounds of the Earth)
Joyful, Joyful, We Adore Thee Wedding Recessional (Church Pipe Organ)
Wedding March Recessional (Mendelssohn's "A Midsummer Night's Dream")
Bridal March Here Comes The Bride (Wagner's Lohengrin Bridal Entrance)
Church Pipe Organ Wedding Marches and Canons
Chants for Babies Deep Sleep (Mantra Baby Lullabies)
Best of Tibetan Monk Chants (Benedictine Mantras for Meditation, Relaxation & Deep Sleep)
Best of Meditation Moods (Gregorian Chant Mantras for Meditating & Relaxation)
Best of Chant (Tibetan Music of the Soul Meditation Mantras)
Rainfall Sounds of Rain (Rain Sounds for Deep Sleep)
Tibetan Chants for Deep Sleep (Monastery Mantras for Sleeping and Night Anxiety)
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 0x3bcdfbc405f60e2b7508465e26f83d78c2b639b614a38e2aadea92fb67d4aed4. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ22B2053221 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648771a7b17a1a914de00a1d1529fd6d65434e5d6018d38739768a72c7415dc8. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ22B2053224 — a six-check JSON result.
The Sound of Rain Meditation (Autogenic Training, Deep Sleep Relaxing Sounds)
Fan Sounds for Babies Deep Sleep (also Vacuum and Blow Dryer Sounds)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57acce705832efde0aca769e5fa43aa93c4b3fbe31c8b6bc92cff46b4f373ce1. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ22B2053289 — a six-check JSON result.
Church Bell Tower Hymns (for Prayer Time, Church Service, Bible Study Church Bells)
Rhythmic Tibetan Singing Bowls (Chakra Healing Sound Therapy for Relaxation)
Classical Baby for Babies Brain Development (Baby Lullabies for Deep Sleep Learning)
Ocean Waves White Noise (Masking Background Noise for Deep Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ead44e56cf0a41c931504856a38d2ede7e598a2680e3867d406ae0db90ab5ac. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ22B2069816 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0157fd8e9ad6de830c89a9dab09b3fbfae211b016e1aa848a8fb553001a9c378. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ22B2069817 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598db6a6df6967d01fe74ef18eb3699943d20f9e35bdda9a009242126e8081a2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ22B2069821 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf060b2de1dfe6166f95bdb6f92c2a8f00fd168cb530de410fbb90c1a579e0df. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ22B2069823 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae7df07c958c86310b516a85a2e90dd3dfdf9f781596c29035339fd920eb94c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ22B2069824 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10ddf7dd20c83c5f47c2af99fa95187d0b9153952711319cae67bafdc83ca20. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ22B2069825 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57420e15580f002542f50101a567b226fc897a2c286a21b94ac40eb3c5c4a874. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ22B2069826 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75e6de31ae499d6ded53cb6e6699e79bf4f3ceef6ce528ff9619a2f726c1496. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ22B2069829 — a six-check JSON result.
LOL Sounds To Make You Laugh (Happy Sounds to Brighten Up Your Day)
Danny Boy (Greatest Instrumental Irish Songs of All Time)
Box Fan Sleep Sounds (Sound of Fans White Noise)
The Homecoming (Quiet Time Solo Piano Version)
Bell Tower Hymns for Church Service & Prayer
Mindfulness Meditation Rhythms of the Dalai Lama
Baby Canon In D (The Best Classical Music for Babies)
Sleep With Soothing Waves after Studying
Relaxing Sounds of Babies (Baby Sounds to Make You Smile)
Mozart for Babies (Classical Baby Lullabies Mozart Effect)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1323d2275ce38074acab91dd2009024275787f26373cc177d9fe6614f912e4bc. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWW1950433 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01090b8c301be02d9a78db950d43f5579aa12b2dbbf187ed5d0a712b31d81323. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWW1950437 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2316927880091154c7cca0002f9708784926fa64b19e2e4198f26f80c9e68fc2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWW1950439 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c90587c02c35dde6e41fde7a03197d5c823dafb5eee34e0186452df8d149429. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWW1950444 — a six-check JSON result.
Cathedral Hymns (Top Christian Hymns by Tower Bells)
Classic Irish Songs (Instrumental Songs of Ireland)
Classical Workout Music (Exercise Music for Working Out, Walking & Stretching)
Insomnia Sleeplessnes, Wakefulness Restlessness (White Noise Rain Sound)
Prayer Meditation Sounds Devotions, Quiet Time & Bible Study Music
CALM Tropical Ocean Waves & Beach Life Sounds