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 0xc653f30a098049826d16c5ba3cf38f02e9a4f3732d0561f755c2616381276717. 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/ad40a438-0858-4817-8cfd-93faac912532.json and https://artists.proofprofile.net/proofs/artist/ad40a438-0858-4817-8cfd-93faac912532.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 0x128ed357bd91e94b5dd439bb85e9b536a597bce465b3a23c4928656abab05854. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZZ42149426 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d090c0abc40489d00aceb6f1ca756d80122ffa7d21f0bcdc182b543fce162c8. 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/DEZZ42149428 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b3cf514c3f76de2a65ba052f714fe69f5fc1248030ff0587dabfaff911a66a. 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/DEZZ42149429 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ec5e98d127ce3cd1b840572a5796e9a5c48d0621f7e2fb9232b6c04ea1b24e. 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/DEZZ42149430 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb5167dff7961fd21c9be6298ddd34b39d42bd016b6731b5d7f8039f3ba0385. 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/DEZZ42149431 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde467b50967ab6a79a47d0f47e8858d13da9db72c064da2baf73f7dede805f8c. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZZ42149432 — a six-check JSON result.
Vintage Vocal Jazz / Swing No. 170 - EP: Star Dust
Anniversary Song (with Hugo Winterhalter and His Orchestra) - From the Columbia Film, "The Jolson Story"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ff3d9dc60f7c48aa42dfb4c25ebf664e88ffe14bc44e9cb923a381cdc38963. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC10503238 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0e9dd641540670e26cd7de441347b0dc17b83499cfdf9cb627157eb208d504. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC10503241 — a six-check JSON result.
You Were Meant for Me (with Joe Reisman & His Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc124ac9c330c80325255d420517e9d1a2c08bb7f914997b4d5a712747cfdf08a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11400669 — a six-check JSON result.
Gotta Be This or That (with Hugo Winterhalter and His Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3e907e0b85a01359e946c77457f2aa6d0017da8305449b5bdd474b41a18015. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USRC10503237 — a six-check JSON result.
Remember (with Joe Reisman & His Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0e378aaa9eb1d50f147e1bf0beaa6ad3a46ea4279eff9521318275c724245f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11400671 — a six-check JSON result.
Autumn Leaves (Live On The Ed Sullivan Show, July 22, 1956)
Vintage Vocal Jazz / Swing Nº 48 - EPs Collectors, "Melodie D'Amour"
There'll Always Be a Christmas (Expanded Mono Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5205089787efb13f9bdb527f57a2945612acd2a2828c5790c58c521092bfc622. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USRC10402004 — a six-check JSON result.
The Ames Brothers Sing the Best in the Country
Vintage Vocal Jazz / Swing No. 196 - EP: Favourite Negro Spirituals
Vintage Vocal Jazz / Swing No. 119 - EP: Hola Amigos!
Favourite Negro Spirituals (Mono Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ee26b23e8dbeb592bc1f979a39b04c727bf59d9c2d0934474e58a97d82441d. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/GBDAG0401084 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e9da2ef2032c4ecc975ed7843fc30282ed384355a403a60445377e8086bef9. 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/GBDAG0401094 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77989afa5f155fe50983c38c460c29c074eeaebabed78b50561d90992576586. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA370404532 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363e81141aa569a63a06ee12f6ade09f941defb18f47c155059fa3b21201dc5c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA370404551 — a six-check JSON result.
Vocal Greats - Ames Brothers - You, You, You
Sentimental Me (Performed Live On The Ed Sullivan Show/1950)
Rag Mop (Performed live on The Ed Sullivan Show/1950)
Vintage Christmas No. 18 - LP: Christmas Time
Destination Moon: Rarity Music Pop, Vol. 210
The Classic Decades Presents - Ames Brothers
Ames Brothers Gold - Original Vintage Recordings
Winter's Here Again (The Christmas Songs)
The Classic Christmas Album (Remastered)
Santa Claus Is Coming to Town (The Christmas Series)
Star Bright (Christmas Recordings Remastered)
Christmas Collection (Original Classic Christmas Songs)
The Diamond Collection (Original Recordings)
Classic and Collectable - The Ames Brothers - Destination Moon
The Christmas Collection - Carols and Hymns
Merry Christmas and Happy New Year - The Christmas Songs
Magic Christmas Carols (Remastered) [Original Recordings]
Milestones of the Legends: Boy Groups, Vol. 6
Anthology: The Deluxe Collection (Remastered)
Christmas Holidays with the Ames Brothers
Christmas Aperitif with the Ames Brothers
The Ames Brothers Sing Famous Hits of Famous Quartets
The Ames Brothers sing Ballads and Boleros
Essential Classics, Vol. 644: The Ames Brothers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf30b0403dc519ed19be7e2533ffe393891bb070b8e8731607bde7e3afee2bf6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL6B02404019 — a six-check JSON result.
That Lucky Old Sun (Just Rolls Around Heaven All Day)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10f70bd5749f3b647d969da4f8c1671df940142fe5bb7b7c16c3ebe9ead615c. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/PL6B02404020 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f280b2bd0f12e682be763cc5fd963a5e186f16d5f8581d1cd5164cf29613499. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL6B02404021 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6493f31f7d1b561531f26380db09d09d9511a9295a67247b26a681e83ca54cd1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL6B02404022 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee068ee4f061857b652c43384f0dbdde7c5fe6c96b0465fac23d4ad7f70f17b. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/PL6B02404023 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aaf7d88a688f4eacf540130048e27197b2f863a4555ed6ba0290e67dbcecdcd. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/PL6B02404024 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe570e434697bd73b78e6309a03dbfca6c4d247866a38fd2e70136c747137f270. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL6B02404025 — a six-check JSON result.
Mockin' Bird Hill (Tra-La La Twittle Dee Dee Dee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff3a35cd1b5cf855938df620a01fb2662795ae24ace5b00bd4b7b23b033e47d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL6B02404026 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864e1852e76170676182330b7d433362cd3358ae2fbb4c80964385edcc12dd29. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL6B02404027 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3d428d482097212d3a55ff5860473203a6b84717164ef3cd0bba6c16a75f14. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/PL6B02404028 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c03a67c917b69fa212e0c04649b6718fa79f907add298a244e99e0072e1dafd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL6B02404029 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877fc285333ef2262717005024f6793e7c9b78d489df5a7136cba9aa910e62af. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL6B02404030 — a six-check JSON result.
The Best Of Russ Morgan And His Orchestra - "Music In The Morgan Manner"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bbc94c6648d48cf392e548f3a9302886febeaebf4caa699e51a3f82a8f1e6d8. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USMC14774428 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ae7b5defb64d36f2d914566d734c6a7604f46c58e96044069f854e19a93ba1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMC14774429 — a six-check JSON result.