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 0xf6427692a7b9b7f4a20b2c4f3d5165ea638425be2ce628673a557cf8a210756c. 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/825e86d2-937f-4e5d-b572-86c6f0501dfa.json and https://artists.proofprofile.net/proofs/artist/825e86d2-937f-4e5d-b572-86c6f0501dfa.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Buddha Blues: Piano Bar Music, Cocktail Pianobar Background Music
Paris Piano Bar Music Collection: Easy Listening Music, Slow Piano Songs for Night Soft Music, Background Music Bars for Drinks, Cocktail and Pianobar Soft Songs
Chicago Piano Bar Music: Cocktail and Drinks Pianobar Instrumental Soft Songs, Jazz Café Bar Music Background and Easy Listening Dinner Restaurant Music
Roma Piano Bar Music: Italian Pianobar, Restaurant Music Soft Songs, Roma Café Bar Music, Easy Listening Wine Bar and Romantic Dinner Music Background
Ibiza Piano Bar Music: Buddha Piano Lounge Cafè Soft Songs Ibiza Beach Party 2013 At Sunset Time (Sueño del Mar Soothing Piano Music collection)
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 0x26ceed4949ed35d426db8308997d04bc96b64081bc4ccafca41f4b7c2f676416. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101300687 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519b2288edaae80656422158f03808f0c9335521f994c025708b589cad7b4059. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101300688 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aaf55faad8175bf7d041d0046d84de13e4f0d8354810008bb9915ed7468059a. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ITO101300689 — a six-check JSON result.
Relaxation (Relaxing Summer Piano Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87adef7e5d7207a2f2afb99255fc46aee217dc6ef4836ecbd4d34f28f4ba66f5. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101300690 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9a9742e26e86406d41129cea5c99e93c118c001abcb43e241ad0382eba827c. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/ITO101300691 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd061938c4d812c75fa9f67a691120259b7a76fe1b8db2a0f98053c5df30a0b80. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/ITO101300692 — a six-check JSON result.
Summer Piano Bar (Piano Party Music Delux)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9821ee4a8cf2495a98b17bd058460adf87b5ed0b6ada03ce613245b0aac5e5. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/ITO101300693 — a six-check JSON result.
Love Piano Notes (New Romantic Solo Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653794665dcd0e6f3d4e305c202180f1d49e3c0e2b26fe82d51b73d23e2b046b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101300694 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586871df03387532ca99cc6937ed8e7193d6e12eb22139cc04a32858106b4e1c. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/ITO101300695 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a374606115d4ee633db9adfc8d9de7affcc88792dfdf6672822fe2bc4813a86. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101300696 — a six-check JSON result.
Secret Life of the Sea (Ibiza 2013 Piano Bar Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5168591e38f381bd590d6ed78b206bacfd5af4d63a956d51e754b914b3b870. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/ITO101300697 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b16e308402e850e3c8d5d4c52ddbe124abc5d44a5e5b1e7833c890c85002dce. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/ITO101300698 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f77ba44c3443750c3d3646429bcfa82d2b930f109986cd8fe569bf1b7ee66ac. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T12:45:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101300699 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7a48e40f2e51b8262336f5b06f8062a40c8fa659d743dd3653bf9d3a4054ac. 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/ITO101300700 — a six-check JSON result.
Beautiful Mind (Calming Music Interlude)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c15e6f4698a7867e71f0b5d46cd8b31a0347652c6b8f4125fef3db5fac4894. 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/ITO101300701 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4c1871495f4ea0d947a17d2379028156a9644985ac7cbf5492de2009838f56. 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/ITO101300702 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1bb471b28002035247c2792a93f65c3c662d003cbcd5f12cdaeb77b120adf1c. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/ITO101300703 — a six-check JSON result.
Emotional Space (Ibiza Romantic Holidays Music Background)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a6aa3011411849b7a1205e57eea326ad09fb014db7ed39a29cc9cb73b58592. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101300704 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65343d54b6b95d908337a5eafeb952b2fe6686e3601696f5a1b98a0de6bf53e4. 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/ITO101300705 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ca0dad14c4a6c36c813b5e34c5573d7b0c765e1f83c9df33c82504ba32e654. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/ITO101300706 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3964217ab9a8318b101aae605d9579ebe672fc5ecc2fb11400a3ea6ea893ccd. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/ITO101300708 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9680412adebdc7364cdd67d5099db1b54769d474502b5182e1de8084b04ae32. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101300709 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e24d3ee1ff6e46738c13c4c54b06834861b69addf4742721829a8633fde83a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101300710 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ca254f0490fab12fb938760f1aa87babef179db1eda02f6db3e3741a32adc6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101300711 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8d7733a23ced5ba9d73986796ce74895c4c2dce20def63f24a17174eed62fe. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101300712 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8b8777afe9be0c05ec0f7d71cb444a6629d86d0686c6b1cab240360670a839. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/ITO101300713 — a six-check JSON result.
Philadelphia Piano Bar Music: Jazz and Blues Instrumental Soft Songs, Mood Piano Cocktail Music and Soothing Bar Music Café
Los Angeles Piano Bar Music Collection: Classy Jazz & Soft Piano Music for Background, Moody Piano Café Songs
Venice Piano Bar Music - Italian Cocktail Party & Drinking Songs, Jazz Piano Atmosphere Ambient Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e803b845cc53c11a5076aa35d2f03aef6a5fbdbbb81e4bf4cd1facf972718c. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/ITO101480643 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121eb27457a633293f28a28a23d17273cff44868964f2465eda1ae3e9c3d9ee2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101480663 — a six-check JSON result.
Piano Bar Blues - Romantic Pianobar Music, Smooth Jazz Piano Chillout Club Background Songs
Smooth Jazz Instrumentals - Lounge Pianobar, Guitar & Sax Music Easy Listening at Midnight Club Ambient
Conscious Awareness - Exam Piano Bar Sleep Spa Music to Improve Concentration and Wellness Day with Instrumental Spiritual Healing Sounds
Piano Meditation Mix - Deeply Spiritual Piano Melodies for Ultimate Deep Focus & Powerful Meditation Sessions
Yoga Music Playlist Classical: Zen Music for Yoga, Classical Piano, Meditation Classical Music
Piano & Jazz – Night Background Music for Dinner and Romantic Moments
A Magical Miracle Christmas! - Peaceful and Enchanting Tunes to Enjoy with Loved Ones
”2020 Deep Winter Deep Focus Piano Sessions for Study & Relaxation”
Piano Music to Fall Asleep Faster - Natural Sleep Aid, Music to Help Me Sleep, Relaxing New Age Music, Special Hypnosis
Piano Bar Ambiance Blues - Romantic Pianobar Music & Smooth Jazz Piano Chillout Songs
The Ultimate Collection of Soft and Soothing Piano Music
The Complete Relaxation Zone - 25 Beautiful Tracks for the Perfect Down
25 Comforting Sounds for Sleep and Serenity
50 Ambient Classics for Complete Relaxation