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 0x1adf6181aa085c1cef9dc17fee5f8f77384de4000c6ac1180171f58e97daf663. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3da21f8a-f2a8-4446-b2f8-001c29c2ddf2.json and https://artists.proofprofile.net/proofs/artist/3da21f8a-f2a8-4446-b2f8-001c29c2ddf2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Calabrese, Chris: Ragtime at the Magical Kingdoms
Dearie - Sidewalks of New York - Smiles - Coney Island Baby - Yankee Doodle Dandy (arr. for piano)
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 0xc3e4a66d474a2beb68b3d59d83c244544473ab47898d9967e5b7fe2d93d56227. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USASX0845101.
The Tiki Tiki Room - Let's All Sing Like the Birdies Sing - Hawaiian War Chant (arr. for piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d05a655a3b68dca71fdf89407518b2444a08384fcc47df3739bddff7dc6cb1. 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/USASX0845102.
Yo Ho (A Pirate's Life for Me) - Grim Grinning Ghost (arr. for piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb3ea55d4b2c3b79c98a1517366ee45e8038bc505dc8969868e0f299ae3d8a8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USASX0845103.
Bear Band Serenade - Heart, We Did All That We Could - Come Again (Come On In) (arr. for piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7433b9c8aaa391d70bdf465c8b60fe8c22e40ae688ef2d7b0fe07beb91c3ebce. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USASX0845104.
Song of the South: Zip-a-Dee-Doo-Dah (arr. for piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533929244c905a842fbf73a3e52e9795a585a61543f8f842a27162d2fadd9008. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USASX0845105.
Peter Pan: You Can Fly, You Can Fly (arr. for piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb56abb3f93153d3ad8305a5c45ba86eb9c46c9945bf14c68279de818cb2b436. 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/USASX0845110.
Alice in Wonderland - All in the Golden Afternoon - The Unbirthday Song (arr. for piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6b3dea7ea4d9836e1af9ce303abf9d3d329adc6acfef8a49b0191ea57359df. 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/USASX0845111.
Minnie's Yoo Hoo - The Mickey Mouse Club March (arr. for piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec99de8ce44a0b0a648a09e31c873612a6ed61d787cb04eecef6f264f1bdf2ea. 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/USASX0845113.
(There'a A) Great Big Beautiful Tomorrow (arr. for piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7c56cda7300a4b1705f9fb64a943804866218c1ca3474b466567ff2d9db5a5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USASX0845116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2343264a8a2a595227ebbb8b8f01a9a992450e11ccd8357563fa1bd21ad8ece6. 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/USASX0845122.
Cinderella: Someday My Prince Will Come - Whistle While You Work - I'm Wishing - Heigh-ho (arr. for piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0170615f9327ea38e6313393718cfe0f310662ea12863c3806aceae811afadd9. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0845109.
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 0xd4eba6c15819985bd9cd2f758fbbfb1b283700e71c237137dfe34ccc570f41e6. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0845120.
It's A Small World (After All) (arr. for piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c0cc3c13aa58cd59d44286e408c490f24840796ca6fa6356a1651de998ce02. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:02:38Z), 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/USASX0845121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a56d3cdc2221e652466711eeba768b775da01dde064d9b48ede8fb3f018a8d5. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0845106.
Hello Everybody … God Bless America - Golden Horseshoe Revue - Police Gazette (arr. for piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d23a4dc9ddac59504bd06eb550194f7c3c2e4a559dfb0a43492669954a725f. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USASX0845107.
Castle Salute: Cinderella - Once Upon A Dream - Little Wooden Head - When You Wish Upon A Star (arr. for piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e800adaf9b8dff0165f6ca54cd57231a18b347f9d27f11b53bd6c3d75d499a2. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/USASX0845108.
Miracles from Molecules (arr. for piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddaa58b9dd657e2cd543bdaefc28efe6825f962f16e70e520cc229f00d3bdf30. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0845114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01d0d80bf0084e8121fc30be2de4b57b55a005b1aeffab1706f750b2a150c85. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/USASX0845115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10b7297131659ce3818b5933337e59f8a41ff9329f47c59f4e5276cbba87556. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USASX0845117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada7c7e3cb0c58a9823e77b80c1a307fe9e1bfa4dba8a52ebaf9b8c5212a673c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USASX0845118.
Canada (You're A Lifetime Journey) - Wonders of China - Fiesta in Mexico (arr. for piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52f543375458c7d7051711fb66497c22ecd55e5b309a916f701d405cc4700e8. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USASX0845119.