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 0xcd2a35a3aedb972a3d8ca1ff40b7985b87cda4ddf5e8464439cfbe55f8863a32. 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/d6b37fc2-2343-4254-a41a-14bb202338b0.json and https://artists.proofprofile.net/proofs/artist/d6b37fc2-2343-4254-a41a-14bb202338b0.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 0xfa31548cef6430eda6c5573f54a00b68640ff4685ce277577a5068cb4dafa338. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/BXSPK2000140 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db3001b44bb3ace3fef982233c8a2af18c09ef5545e2376190f829ee264226a. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/BXSPK2000141 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b18630989555d77893572f81205cc715bceeea7a5c8c895d698bd2b8beaa4b7. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/GBSMU8532313 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0bef9d89409c7b67b93ab7687d405722ef8e21e210a9a1919b3fd2aecc3d5d. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/GBSMU8532315 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe32669d542b3a19abaeefc75314004206d00df538c3f62c8d82d7d14adfad5. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/GBSMU8532318 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6284e0d343873192927a37f6f3496c8e75b3dbd7a24686aefd96a242b48322. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/BXSPK2100004 — a six-check JSON result.
How Does a Moment Last Forever (Piano Version)
Noble Maiden Fair (A Mhaighdean Bhan Uasal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f711707159d4440b9f3e2d6901b4c97baf9ba9603b2d5abfe608e020abedfb. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/BXSPK1800045 — a six-check JSON result.
Arlo Makes His Mark (From "The Good Dinosaur")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca3ffed9cab2b55ba3615de515e8b22ce7511bac916de2a1a976ff2b0b6adea. 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/BXSPK1900003 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59b5d841b865330bab0671da87f8a7dd079e4a762c07993ca653fe7f7348daf. 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/BXSPK1900006 — a six-check JSON result.
Noble Maiden Fair (A Mhaighdean Bhan Uasal / from "Brave")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd88840d02cea1063985e9984e8566b8e1bfc0d6c8e32580d37da3faea3f4af. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/BXSPK1900007 — a six-check JSON result.
Joy Turns to Sadness (From "Inside Out")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba549e8ab9ef686da0981bb9da82ff87352e63c90a81ef8904f684f300a09b1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BXSPK1900008 — a six-check JSON result.
Hannah and Volmer (From "A Cure for Wellness") [Instrumental Version]
Deliver Us (From "The Prince of Egypt") - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a837afd1d1a3544746aa00ec2836ab03a1d9bd146a467c23f5ae788825ea13. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/BXSPK1900133 — a six-check JSON result.
When You Believe (From "The Prince of Egypt") - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18903f25f4c4920e60eff1d1a3b2474e53137c5c440d52fbffad24e5f0e9dd01. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/BXSPK1900135 — a six-check JSON result.
You Give Me Hope (From "Letters to God") [Instrumental Version]
Parting Gifts & New Horizons (From "Toy Story 4") [Piano Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd109a26afc77654b1507d8f7cf33d4d4676ae601c24d5afa9470c8dee9fb77. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BXSPK2000117 — a six-check JSON result.
When She Loved Me (From "Toy Story 2") [Piano Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2d897acbd1bb5950941cd9d1fb98561ab6c75ec0f614f81ca7b764bade2082. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXSPK2000118 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c0c23eb0a028b20ec8df2f41d5202bf5f3ee83eeaa5ad999f4e9c3074b1659. 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/BXSPK2000121 — a six-check JSON result.
Adiós Chicharrón (From "Coco") [Piano Version]
Wish I Could Spend The Day With You (Piano Version)
Remember Me (From "Coco") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc345f60c303142d077b6ed1ba5e7d92b92c6fdcf61e0568093766f83119d3c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BXSPK2100033 — a six-check JSON result.
I Will Go Sailing No More (From "Toy Story") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df411d6a1979a19774c73ad817958119134f4edf33f9a1317704449d2062d7b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXSPK2100035 — a six-check JSON result.
You've Got a Friend in Me (From "Toy Story") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bf0b5489ef22550472afa68a9cccbb2f853a683329e9c71973aee247aae9cf. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/BXSPK2100036 — a six-check JSON result.
Vespa è Libertà (From "Luca") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db94b22e8bc7e09b978f5211181df6c4a3b8f57f4d17c8a4bec46eab23d8de2. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/BXSPK2100039 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97179d99380e0ad94365ae9024606e87b916d1399b115e0a2dafe525c72b837f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BXSPK2200011 — a six-check JSON result.
Fairytale (From "Shrek") [Piano Version]
A Narnia Lullaby (From "The Chronicles of Narnia") [Piano Version]
Concerning Hobbits (From "The Lord of the Rings") [Piano Version]
The Summer I Turned Pretty (Main Theme) [Piano Version]
Stranger Things (Main Theme) [Piano Version]
Steal the Show (From "Elemental") [Piano Version]
Steal the Show (From "Elemental") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7bad1ac0f7cf9f0b8dd92240f1ca4c24639f8754ea0ac2d454921194cbfc6b. 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/BXSPK2300009 — a six-check JSON result.
The Hanging Tree (From "The Hunger Games") [Piano Version]
The Chronicles of Narnia (Main Theme) [Piano Version]
Pure Imagination (From "Wonka") [Piano Version]
Pure Imagination (From "Wonka") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74bc476cb372d6ef1ae012abe548b5372683821a14364d89a8e457fa73f9afc. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/BXSPK2300014 — a six-check JSON result.
Spacewalk (From "Passengers") [Piano Version]
Game of Thrones (Main Theme) [Piano Version]
What Was I Made For? (From "Barbie") [Piano Version]
Engagement Party (From "La La Land") [Piano Version]
A Close Friend (From "Fantastic Beasts and Where to Find Them") [Piano Version]
The Reason of My Smiles (From "Queen of Tears") [Piano Version]
Inside Out 2 (Main Theme) [Piano Version]
Inside Out 2 (Main Theme) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446d77b1e899f05328d1069334d4f38f05df29287b546a726b74620d1a3c77ce. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/BXSPK2400011 — a six-check JSON result.
Love You with All My Heart (From "Quen of Tears") [Piano Version]
Sadness and Sorrow (From "Naruto") [Piano Version]
The Theory of Everything (From "The Theory of Everything ") [Piano Version]
Anne with an E (Main Theme) [Piano Version]
Somewhere Over the Rainbow (From "The Wizard of Oz") [Piano Version]
Marriage Story (Main Theme) [Piano Version]
So Long (From "Toy Story 3") [Piano Version]
Outer Banks (Main Theme) [Piano Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c18d768f891f664d89c1f134a16970976fb19d848424eac97722fb573126cf. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXSPK2400020 — a six-check JSON result.
Dear Mr. Killian (From "Joy") [Piano Version]
The Wolf Who Became A Woman (From "Rebel Moon") [Piano Version]
Monsters, Inc. (From "Monsters, Inc.") [Piano Version]
Monsters, Inc. (From "Monsters, Inc.") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ade965c8fbd57f656cb740ca3fa85e0a4a1e8d48d4e8b864e28f39a7c6e9c6e. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/BXSPK2590000 — a six-check JSON result.
The Wild Robot (Main Themes) [Piano Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9195bb8d534c08e96e298e00317b7679e8d10cba39ce0eee2d5817b038a76f32. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/BXSPK2590009 — a six-check JSON result.
Junto de Você (Original Motion Picture Soundtrack)
Life's Incredible Again (From "The Incredibles") [Piano Version]
The Brutalist (Main Theme) [Piano Version]
Paradise (From "Win or Lose") [Piano Version]
How To Train Your Dragon (Main Theme) [Piano Version]
Lilo & Stitch (Main Theme) [Piano Version]
M3gan 2.0 (From "M3gan 2.0") [Piano Version]
Me Before You (From "Me Before You") [Piano Version]
A Whole New World (From "Aladdin") [Piano Version]
My Life With The Walter Boys (Main Theme) [Piano Version]
Alice in Wonderland (Main Theme) [Piano Version]
The Wild Robot (Main Theme) [Piano Version]