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 0xd26616334518e649d5d5ff0ffd7b58fdd9b2810ab52087e558cb89076bef96c6. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acca4791-5a39-43de-8694-faadc863e791.json and https://artists.proofprofile.net/proofs/artist/acca4791-5a39-43de-8694-faadc863e791.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music For Reading Most Beautiful Piano Songs
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 0x225e660ea80d51aab549911e7da5140fb5272b1f90399ce798e49a18431418e1. 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/ITS781600214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee1377bd1ea3ac1c3eabeef6e70fa4f04dcb80ca408e541a0f5e53b476d1e17. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS781600216.
Classical Music for Studying (piano music and strings, music for concentration, piano and violin)
Piano Music for Concentration (Piano songs playlist ideal for relax, deep focus, intense studying, atmospheric calm, soundtrack for study, acoustic, perfect concentration, focus now)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019e6bedb1da55bdb32a5cc64154c6f4f64fe9af7d59fe4450480d96ecd979b5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITS781600998.
Study - Focus - Concentration - Best Music for Brain Power (Intense Studying, Study for Exam, No Stress, Memory, Relaxation, Deep Focus, Music for Maximum Concentration, Music for Office, Hom
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2002aa05df58a26d25eb080e18369747fc412adf704b2415b4ed0f0576a1f2b. 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/ITS781604596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf550843d5e5b4cc20ad6e32bc5a5c54481f051539dfb4772d77d26cbaf5e9243. 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/ITS781604597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cbfbce79a4e4490a5b8f09391f87dfd4fd1ae13a5bb500c914dc8c9f061104. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS781604598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5791e9a226599b50cd9547d591273578e30c3fa45b61e09df2b1af0d1c7f6c. 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/ITS781604601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1353278970b9af4fc6f6bf7aa3235dd1ca823a3f6dec4ef8488482dbe87f21c4. 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/ITS781604602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b805d17a003996cb919d258c122c6f473ddd0d0f4fbd712a8bf971dbb2b92a9. 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/ITS781604607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c0633e380a17b4b35f3553ea3bac8a07921ade61aad5f4fa5ff73095750f1d. 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/ITS781604608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc663b879c0ed72cc9c97537198fca527b3c8635466351fd9c8ce0397c8fcf70e. 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/ITS781604609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d6c5396cbbbc80d99050f80b3a31e4780b35ba30cd9cc63c3b910fcedcb6f6. 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/ITS781604611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae6e77ceb342b7ca9aa7f0496e34c31f7008ad0bca86eee503531425eb8016d. 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/ITS781800905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08234eac7a7c9b1f40adda2331d9e7947ff9057fb418dc6c5074beb17891c136. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS781800913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95221bb145c2cbcaffe4d83ea93adbb73f8befc81b361e439f43fe0cd521130. 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/ITS781800915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1da3300614abbb332a91143f9dc87f8f281ed5337bf91eb66c244f59c2419ff. 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/ITS781800916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328a9f873d8a56fdc66f66a29d3e785b2e0b0dcd5561de65c7ed6dea9d199d40. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS781800815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8070a7e5138b32be3c90ecd3a19b50f03b65f546c629f856d4056d26f967349. 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/ITS781800706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ee7a5a6709f26e120d42cb23f044d4bc78b12392190270cbb8915205eb6d7a. 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/ITS781800715.
Taste of Piano Vol.4 : Pianists Today Playing with Emotions (peaceful piano music, relaxing piano songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388d7c0b5579e8d48c3fe222248bfae7df4a66f6ad1f67c6c823f7c72db0b1da. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS781800205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c0db6ec1524521ea510e4a9af7e6c484d92cda2fad511780b4c6874e09e60c. 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/ITS782000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395af5ccc13c973d897347a852cdc916b00268fc6d912f7e852ca00218c5b3d5. 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/ITS781800223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80da58b0853d2dda8962d231ceaab7c8cc3462f7a704cd76f4f7632bd420afcd. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS781800413.
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 0x2b665d1d08fad6c51244d39cfd7ab26d63d679084c8df0814c75aa2035cd5745. 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/ITS782401467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9098ae5457374ceb1b283869c9ac9b57cecbc125c2731a1e219cb8bf4c33c243. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ITS782400242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba79382fd5600f4f99f6d90c2436728ba18b4b0361b01ce2e6d0b4306050f01. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS782400243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f125c3df84406cfc08f488f10972b77648280b722de10f4311034c0da4cf9e9. 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/ITS782400085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1997218bb1df12780f207ba965bb4e79290d59a7dcd3d0761db7da4d14074381. 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/ITS782400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3399b065b177e099a736a9c88f119ec89526913960a4122ae823c3b3ec554052. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ITS781901291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717edf3cfd4d874dd53d37ef486f4ec4231673a8853053f34dc035bdbceda6c3. 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/ITS781901292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adbf8f4adbafdcced9c71429943fd7b27f3bf5cb2cef6522b2f77c730582d0a. 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/ITS781901293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3151903b0773932fb96f1d09cb88bf8fd5358f145b627f894e445951694ee6a. 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/ITS781901294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fcb651c253ab8a747e4bc2c07bec7a12f1204b380d43c50601839b9c0698268. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS781901295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182d9c91f689e64dcfa151a10ebaac0846fb691b86d1a7f5bed5f64359f24575. 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/ITS781901296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71fcf362f586b9cbb8226593e957d4163698220789a543280de051f33dc5dd3. 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/ITS781901298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d02d28ee3da8b10acf265e3308d8c21d4d5abb5a3622dcaf4778761cbe9fd0. 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/ITS781901299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c16c9d074215123b2f84e68bfdab21124de86be5d3f1e9aa2f0df163a9cedb. 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/ITS781901300.
Emotion : Soft Piano Music Vol.3 (Peaceful Piano, Relaxing Piano, Piano Moods)
Shades of Piano Vol.3 : Mellow and Peaceful Piano Pieces
Shades of Piano Vol.9 : Mellow and Peaceful Piano Pieces
Piano Mood Series Vol.7 (peaceful and relaxing instrumental piano music – no lyrics)
Unique Vol.2 : Piano Expression (piano mood, peaceful piano)
Unique Vol.6 : Piano Expression (piano mood, peaceful piano)
Shades of Piano Vol.6 : Mellow and Peaceful Piano Pieces