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 0xbae5fee835405026d7aeee87baf3f2ee4561a77386fad0322f62ea247a843f32. 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/83aeafce-70a8-4b1c-9c45-da703c8cad88.json and https://artists.proofprofile.net/proofs/artist/83aeafce-70a8-4b1c-9c45-da703c8cad88.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x3cba7092f62751ca425b656992b6f33e73722695f69824e1af764fc7b3d44f7d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80686458 — a six-check JSON result.
Tribute to Richard Clayderman: Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd0414037e680f1a0053502e01b20916be6a927d1da4978cccdb7f0ff843b81. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR6V80590497 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d59915684963a6471a80692106199e031cf9aaea008c2cfd6160c386234c37a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR6V80590499 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55cfcfe0a139c9e14d83aa9bab4cd4517346e2ad3262d9feeec5ae8ba9f1dcf. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/FR6V80590500 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6728dceba79a6927de5c08534e49f37d3c5db5fdb60adb3ddfbc2e86212313e2. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80590502 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4535624e1a161420a0afe10c23f9a295533502f6a05e1ef0077907df468151. 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/FR6V80590505 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aef4c2ab0a9cfa6f86c280ac085507bea9353c1b79bcae241d34c4253944670. 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/FR6V80590506 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c5b313af73ca66cddae1c21ecd5be131717c1d9f0a266d160b265ac724ba20. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80590508 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03c176c160024391d04af7ef7c8bd4d7ea908ee8115cfbeffe8d867b3f5e1e3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80590510 — a six-check JSON result.
Tribute to Lionel Richie: Piano Collection
Tribute to Vasco Rossi: Vasco Rossi al pianoforte
Tribute to Michael Jackson Human Nature Piano in Love
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca14fce0e38e802042bb2145afc628508f55c2d9f7c176c910574eb3c7df432. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FR6V81964126 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997b9938cfd15d7aa18c3f16c83fc17ee5d368828984002ed9eb9f7b56633677. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/FR6V81964127 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e47a39010afdfda0f75c55323e1c157403a3f28611a58d3b3d902d4b7f9fcf3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR6V81964132 — a six-check JSON result.
The Last Snows of Spring (From "The Last Snows of Spring" Soundtrack)
Je t'aime... Moi non plus (Theme) (Piano Version)
Endless Love Suite (Piano Version from "Endless Love" Soundtrack)
Tribute To Claudio Baglioni Piano Hits Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c41c07aaefae3a0d6bf7e247cb6376ede84e8d388e6adf562f0c9a054e660a0. 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/FR2X41478450 — a six-check JSON result.
Tribute to Claudio Baglioni (Piano Hits Version)
The Da Vinci Code Main Theme (Piano Orchestra Version)
The Sound of Silence (Simon & Garfunkel Piano Version)
Best Soundtrack Theme Collection Piano Version
Top Gun Maverick Soundtrack Anthem (Piano And Orchestra Version)
No Time To Die (Piano And Orchestra Version)
Now We Are Free "Joslin Gladiator" (Piano And Orchestra Version)
Quantum of Solace Soundtrack "The Dead Don't Care About" (Piano And Orchestra Version)
Remember "The Lion King" (Piano And Orchestra Version)
Terminator Six (Piano And Orchestra Version)
Eros Ramazzotti Best Collection Piano and Orchestra
Ennio Morricone The Legend Best Collection Piano And Orchestra Vol.2 (Piano e Orchestra Version)
Ennio Morricone The Legend Best Collection Piano And Orchestra Vol 1
Super Hits Whitney Houston Piano Version
Elegant Fashion Compilation (Best Lounge Chillout)
Ennio Morricone Definitive Collection Piano And Orchestra
Blood Diamond Main Theme (Piano Version)
Theory Of Everything (From "Arrival Of The Birds")
Theory Of Everything - From "Arrival Of The Birds"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1843a7c1bf76a9dd148600ddc2f9f8e897584af54484c2b1853ccde8766228f6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD52042462 — a six-check JSON result.
Xmas in Love (The Most Beautiful Love Songs for Christmas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc24447a62f718ba3a7bbd3361d31bf3d744030b7b9ff12fa8229ee76bd83be. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81480560 — a six-check JSON result.