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 0xc012ebbe07c5cbcbd0b59531292116aa22da6ec0041b8f00b4651f7eb3e6cb38. 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/52c20559-1066-4047-a2a7-b444cf62b5a1.json and https://artists.proofprofile.net/proofs/artist/52c20559-1066-4047-a2a7-b444cf62b5a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
High Noon / Do You Ever Think of Me (Mono Version)
My Silent Love / Fat Man Boogie (Mono Version)
The Breeze and I / Whistle Stop (Mono Version)
The Cha Cha Cha / Shaner Maidel (Mono Version)
Arthur Murray Cha-Cha Mambos, Vol. 1 (Mono Version)
Hernando's Hideaway Anything Can Happen Tango (Mono Version)
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 0x347c8f6cb8de4701c1013f40361796d61c28548d9383dcde1b18a268fc869bb1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTR80301181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6296fa00de1e1c0f0890eab95eabc0f1218c07d5afa0d63a9e99967ee50f075f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTR80301183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb48f3dcfeda49e80836870d16150d86530d82a1c3999d4f59f68c58367bb201. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:01:29Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTR80301185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72cac86c4bdaa729278ba3b08fff07e618fc2f9c24fcfa23432e017836c472f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTR80301189.
Let's Go to Town With Billy May & His Orchestra
Swing Essentials Vol 3 - Billy May & His Orchestra
Two Albums In One: Sorta Dixie / Sorta May (With Bonus Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f60c089286293aead0a87170ce2980b0921cab701e954d097219032e6f73df6. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGN32100715.
My Uptown Blues - the Swinging Sound of Billy May & His Orchestra
Essential Classics, Vol. 176: Billy May & His Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a71d1cad8a14673ae64dc274c918187a2a8dd0988799e1789bbee973f0c973b. 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/USEE10180048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e9c7acf062e3bde03c81532827a8ee230f1c73906558ac5144497a19baefb0. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USCA25100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e4d1489cf9d60d9dc7cff483a5058e1b8d2f1b3e415c61d4c955655ad0202a. 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/DEB639112916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2ea4c963d6cca2e1aea19f624a9f37a7feb605ecab792e317d26b4c359724a. 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/DEB639112919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fa3619bb4636cd5e4c786c33436991cefd644c66deb7e4be6a90cb37a94401. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEB639112913.
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 0x1a6d49053fe8701cd0fbcc8d897dfa3358bd575fc10e6af3fb906e20ccfee3c0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB639112914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7384b7d465c5b627e27379c78d4b57528449fd954dad344340b5ee0faad5b01d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEB639112915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad4f72019588c0be6a266e6b290f94287c1f1b8098d9b7ef2993d93123e7a50. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB639112923.