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 0x89df238fee792f5cf954ad027c736e07d599a888fd2c24aea05142916a8a1031. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6123ffaf-2e01-45a0-a509-a0000bfa5ac4.json and https://artists.proofprofile.net/proofs/artist/6123ffaf-2e01-45a0-a509-a0000bfa5ac4.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
City of Stars (From "La La Land") [Piano Cover]
Three Nuts for Cinderella (From "Drei Haselnüsse für Aschenbrödel") [Piano Cover]
Grow Old with You (From "The Wedding Singer") [Piano Cover]
The Departure (From "The Leftovers") [Piano Cover]
Watching You in the Morning (Piano Cover)
Reflections (From "Tigertail") [Piano Cover]
The Notebook Main Title (From "The Notebook") [Piano Cover]
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 0x10cb8f03cb93890940af065afc4c6d41c9a468e1f357c66d518c9780fc5d3bd3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZPJ32164120 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7ca1dbd32790fe8bb74680ff749dc9223bc2f1e44f09041cf7aba787a4776b. 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/QZPJ32164113 — a six-check JSON result.
Fairy Tale Main Theme (Slow Version Piano Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92a71071a8b112fdb202e944c09ee36c425129c3964a8c8e6cda0bdc86b88de. 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/QZPJ32164118 — a six-check JSON result.
For Those Who Can't Be Here (Piano Cover)
Christmas Star (From "Home Alone") [Piano Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2538ae98f77bc73a414772ffc5b6cf8ba854f191a98ff0b534c8e02a5d0129. 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/QZPJ32210697 — a six-check JSON result.
Fallen Down (From "Undertale") [Piano Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e21d6aad547162b874074acf67dce1c4940dee98b220fbe0868404513c95840. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZPJ32230616 — a six-check JSON result.
Ciao Papa [From Guillermo del Toro's "Pinocchio"] (Piano Cover)
Relaxing Piano Music with rain and thunder for stress relief and sleeping (Piano Cover)
Any Other Name [From "American Beauty"] (Piano Cover)
Hope (From "Tales from the Loop") [Piano Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c7916f61446c464aa2f29bed587ba123f1437dd1b0be80dcd0c7b1395fb933. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32277280 — a six-check JSON result.
Once Upon a December (from Disney's "Anastasia") [Piano Cover]
All I Want for Christmas Is You (Piano Cover)
Two Of Us (from "Chizuko's Younger Sister") [Piano Cover]
Have Yourself a Merry Little Christmas (Piano Cover)
I’ll Be Home for Christmas (Piano Cover)
I Think It Must Be Christmas (Piano Cover)
Somewhere In My Memory (from "Home Alone") [Piano Cover]
Cavatina (from "The Deer Hunter") [Piano Cover]
Call of Destiny (from "The First Tree") [Piano Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04a510302b9ad0f05267b96890790c6f13d667b012a1b88ae773eaf839dc806. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZPJ32394209 — a six-check JSON result.
Hymne des Fraternisés (from "Joyeux Noël") [Piano Cover]
Professor T Main Theme (from "Professor T") [Piano Cover]
Prologue (from "Beauty and the Beast") [Piano Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c231f7b178ff5aff102d92a4fe698618310300385d325a6190bdc990e1a7937. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/QZPJ32419844 — a six-check JSON result.
The Quality of Mercy (from "The Leftovers") [Piano Cover]
Gran Torino (Theme Song from the Motion Picture) [Piano Cover]
Claudia's Theme (from "Unforgiven") [Piano Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30671020872c5b4f9b7dfb6817888df02e8704f7334e15cfef3d98cfcc0705f9. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZPJ32447797 — a six-check JSON result.
The Dreams of Miyo Saimori (from "My Happy Marriage") [Piano Cover]
A Little Girl, Sometimes (from "The Watchers") [Piano Cover]
Preludium (from "Ad Astra") [Piano Cover]