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 0x1d7a7c0660265e30ddf0a7d5b266f74315ee0a2a4ef3916e90f7d401b9d945ac. 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/d6720649-bc81-4b5a-8343-134b4a6125e6.json and https://artists.proofprofile.net/proofs/artist/d6720649-bc81-4b5a-8343-134b4a6125e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x1005205ec2dab0d57ce5813e6acad67b490d6469bf428e09bd25b412168d16d5. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ITK261600208.
Renato Ferrari Plays Ludovico Einaudi With Ocean Sounds
Dream Music Around Me (With Ocean Sounds)
Baby Sleep Aid: Piano Lullabies for Sleeping Babies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8fc4013f41066f78da0e1011d88a1052e1973195e6b604cd49e070d21b7073. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/ITK261800487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261650dd4744c95b7c50d78caa8bd49ca32476d37bb4ae108a19532b8c8eeee0. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/ITK261700367.
Gentle Classic Piano Moods with Ocean Sounds
Adorable Johann Sebastian Bach: Classical Music for Relaxation, Reading, Studying and Stress Relief
Memories: Piano Music from my Lost Heart
Classical Piano Pieces: Famous Classical Solo Piano Masterpieces, 15 Modern Piano Transcriptions
Symphony No. 40 in G minor, K. 550, I movement (Piano Arrangement)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa316dc24cb28f9015303d662c90c31f4556d49ae7cb446af2da4792b8c00ad04. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ITK262100237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a8bd622a8995d395ddbb0fc28fc014cd51ff60e4bc3180faf0b04a34083d7d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ITK262100239.
The Nutcracker, Op. 71, TH 14: No. 13, Waltz of the Flowers (Piano Arrangement)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06510cc1ebe5bff67ac955c96ce376b80560105b35aad52971e63ed1c49a34a6. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/ITK262100240.
Song without words, Op. 62 No. 6 "Spring Song" (Piano Arrangement)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85a3f000b1dda70550f435bbb8549fc95a49bc71ea58afd98d1c4f5dd73ba1c. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ITK262100242.
Ellens Gesang III (Ave Maria), Op. 52, No. 6, D. 839 (Piano Arrangement)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17463416c7f1539ad1be9da4989abbc0d3796a5708da2e24cb898f59cff44a28. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/ITK262100243.
Chanson Triste, Op. 40 n. 2 (Piano Arrangement)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a5af636247af8f5e175e9796af179a49cede3753b48a6693c12530d2b0e76e. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/ITK262100244.
Beautiful Classical Piano Pieces: Clair de lune, Arabesque and Other Classical New Age Piano Music Favorites
Suite bergamasque, L.75 - 3. Clair de lune
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b98de3660bd6eefcaf2b625b27856856e04b57352470ab505c924f1f4692a7. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/ITK262101134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590cbf3abcdce3219964c467ed121dff00633fc07018196992f90f30ba81649d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITK262101135.
Piano Sonata No. 14 in C sharp minor, Op. 27 No. 2, I Movement, Adagio Sostenuto (Moonlight)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195a03b4b27f69eb7bf57175d17d94b87d49c1cb52553fe427f2059ab52139e4. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/ITK262101136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63748781a33820ea03f5d7191610ce84b636d9c9ca3052d7f7689bc685cf4ebd. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ITK262101137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6426655fc3150088d288bee61260b6fe84f98bdea0d7e118dca150d3b28b6f0b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ITK262101138.
Beautiful Classical Piano Pieces Vol. 2: Classical New Age Piano Music Favorites
60 Most Beautiful Piano Classics, Vol. 2
A Romantic Evening: Soothing Piano Jazz Music to Relax
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39a606794c0f2c858cd3332a83a6126ce407777923422a509fda9955f37b91b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITK262204161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c93575e20b2b70fefc9eb2f318c1fdad47c81b4ae49bdf56677b30bb2e7662. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITK262204164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273c9e98dc8ff8cca173a956b68862df231b9796cd8363e3e040b7e6815a2ac1. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ITK262204165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b02298f380a16c8117fe5f6d5d16ea1e6fa3b6973863eeb05abfadd04e3cee0. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:38:29Z), 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/ITK262204167.
Bach, Haendel: 12 Beautiful Piano Classics
Deep Sleep: Calming Piano Music for Sleep And Deep Relaxation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013248bf7a99c45a8c4b68f42ae42d1de678eef86549a7fce5a39098365bc0c9. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/ITK262300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5e7b6ebadf58e7d2566b892afc9304712dc1b22d62dae3ce754dee404ebada. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITK262300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3be0e83c3d70c6cd822297b498619b0f71ed87235cae516e53605124b84d4ae. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ITK262300049.
Sleep Jazz 2: Piano Jazz Music to Relax, Slow Jazz for Sleep, Jazz for a Quiet Evening and Sleep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269443c3f055ac70b94a8aa9282f5a76d71de27f37693ed8647070f275cabd51. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ITK262300282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6428c0d8bcbbe454f57d197bc51672d77cde42389f8d8cebe1c6799a0ca42b. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/ITK262300283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb747cdd8417c125bf19a954d7bc7cc41e85080831678deb9ee958db05a51509. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITK262300284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc60a1e08a05eb6989beb1fd9f191020fdf028ccc47dc3dd2249afb31fdb7c5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK262300285.
Calming Piano Music and Ocean Waves for Deep Sleep & Relaxation
Deep Sleep: Calming Piano Music for Sleep And Deep Relaxation, Vol. 2
Classical Piano for Deep Sleep: Calming Piano Music with Ocean Sounds, Vol. 2
Dreamy Piano Christmas: Joy to the World, Silent Night & many more…
Piano Christmas & Ocean Sounds: Silent Night, White Christmas & many more…
Nocturne in C-Sharp Minor, Op. Posth., KK IVa, No. 16, B. 49
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf78c018784c668589eb587e53f51b40b09ef33e643518ae0cd3abfb6ad26fc. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK262400764.
Solitude: Sensitive piano for quiet moments