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 0x4ad4f355d08db4fd76667c3b55eb2b5e54fc63c6b32b5276e9081e3e91aec038. 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/94d173cb-71ea-4878-a0af-8f1d81e52d92.json and https://artists.proofprofile.net/proofs/artist/94d173cb-71ea-4878-a0af-8f1d81e52d92.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
DORSEY, Tommy: Music Maestro, Please (1935-1939)
The Swing Band Project, Vol. 5: Swinging and Sentimental Trombone
Tommy Dorsey plays Tchaikovsky Melodies for Dancing
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 0x97853eebeaf2e564b1d011f0e55cd55dadb3f4005e0943de54c9a050f9ab968d. 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/GBLPF0279220.
Showboat (From the Musical ''Show Boat'')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204ad721c229418621a399543f0270944559833f2d0e06001f17183574e473c4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US3L61480305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ce7c3bdf5e6b48c5e46165e53fbe25fd3bae2c086e4b9f4db64200505fd492. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US3L61480306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f966f296a469cd9bb441ea004d64ee3a7f827b3f1450d1de04e4dce435a8cd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US3L61480308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4ceba6fadf09123841bad1a32006b75bc63e44273e7b75819cc2cbfaa274b2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US3L61480309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3edca4b0e4ebbdcc4e021d463922ea7b3696b2278019d6cd4916ffa845ff09. 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/US3L61480310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c36d10971c1a16a3ccff12ecb7eecfb121a3881d22c2a6a6864ed1c617e28f. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/US3L61480304.
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 0x5f8e39208e4c95af81859ea10ac3080b61a3e22d7e44672c8821e7932bf7aeb3. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3L61480307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114def59569397dfdca50c535da90552a6c93076f68ba6f7d059520d0b6ce8ad. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES6601801092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f00b886173b32956c6bb21f658bd6a9cad709e44ceb32f53469d1bca7869a34. 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/ES6601801093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69ddd2271f84d150ddf2bbd4aeb7c1df5ccf4d97c534e575c856d1fb81f65ef. 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/ES6601801101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e204a08a5731fa1f1cc670e644a7eb3ecfc0875fe5df44f8ba8e6e02db0fd7c. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES6601801094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde09f619a8903842cc2c6349ac01bf004c989d4a20774f63f82b9bc0acc8c6bd. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/ES6601801095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085b58db8e12771052d2d177f7f971dd3215d1c076b955f262c8f322ab0e19a9. 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/ES6601801096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fddf835b156d1208a67ee4cdf041581b3196a6be59f9e03562b57b73b566826. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ES6601801097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db144770a1c5fd7fa5bae5d5c908c823bc0e6b9257152452d0f4c3ce8987fe6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES6601801098.
Tommy Dorsey Orchestra Featuring Warren Covington
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ea2290d226cbc6d7b950cd34306a13dc033597fbde7ca7b544c015c6975791. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/ES6601801099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58e4d307a1e21155e73d22b05a17983f46e5948d1a8124c64a79ed9df47819c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ES6601801100.
Sweet and Gentle (Me lo Dijo Adela) - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202b087173569c2f6d54def243a741fb4f73204568a08cc53cae98b1ce8ed1ec. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES6601801102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c95507ede29d16b11ab7d580fc2e6f813b6fa12a6a0d4d3ac43c24bc72bada6. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ES6601801103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6393d55f8f4037d8a4f6f7a8d7306d3017b1660c1a18e5da048396f761ddb3e0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DETL61610252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf7a1d7d38efb7996d4c945b948e198f5e0423c8febfc0186c473152f4980f8. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/DETL61610264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3b82458e22d2da36cfb379307fcbe5a06a7b1f824b88b394e9f74be2650900. 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/ES5331410052.
Jazz Figures / Tommy Dorsey, Volume 1 (1935-1938)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8a0bd6af9dd6335dc832228712f0cee9f9cbfb9c1a4c4d4ed51bc56dcd1123. 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/BGA671177203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48eef2a0d2f54b1dbf17abe0abe25688fba37072253ea526559bcf217a05b076. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BGA671177217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99711baf91b83c251edfb6ec462a8aa6372775504983cb7be6c70e1d13c2b84. 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/QM4TX2390384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b35cca606ad3b41ec05677c74a2abcea678c759656abb0b16bd3e24ba6fa3b0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM4TX2390769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4748e7007b4a1b566c18f66c03e8210dfc0c8dc4a8ea3941439ce79440ea5873. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QM4TX2390775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6d63af61288d08a0860e83cc6084f241fcebffe46bb341fd0dc1794fc57c9d. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QM4TX2390770.
Music from the Broadway Hit "Hello, Dolly!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b27544868e520a4fbb096cd47014be3bf4da8b46f9649d9b92ef46975fa81b. 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/USRC11400113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c4fd7bc5acd4d11bc8104122acc103b931de47cff3f1bb492b09c28218b8b5. 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/USRC11400116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d8f50d111861ef1dd3a16996bea0189285b362906ce38b99ea54bcdd895415. 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/USRC11400115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380603c2aa4a2d98b7d8f7f1440f1d212fb0b37875afd2c848e75140e8f92af5. 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/USRC11400119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9eff162f1e45229ddc3bb9af770b8720f989cb31e2b90681061f61fb221e24c. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USRC11400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5ea4d9f0e604bea7be58ed720561516bd8a7d2ee05dc021a83ac04a3ac147b. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11400124.
The Fabulous Arrangements of Tommy Dorsey in Hi-Fi
Tommy Dorsey Plays Cole Porter for Dancing
Tea For Two Cha Cha (from the Isme Christmas TV advert) - Single
Tea for Two Cha Cha (feat. Warren Covington) [Mono Version]