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 0xd55211efad2ab65cadac261514169208895646b29ee63170e613f91b7f599e40. 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/41149dbc-232e-491f-9579-a81bfb50e149.json and https://artists.proofprofile.net/proofs/artist/41149dbc-232e-491f-9579-a81bfb50e149.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Josephine Baker - 15 Archive Recordings from 1930 to 1937
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 0xf2c15031881b2f19c8b706d859359137e9e4dcd226d692e00e67a7803766a9e9. 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/DE1A42140646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901384f34550a7816703fdf7fc15cba6405fcd4f0c79b2f50dc1a658f09f7989. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DE1A42140648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82464a148f03aae6b738bd9062322f7300a6fae72c27ee02cc2c369b3b40f319. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1A42140650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57ceafe296186cd969a2d0d0dbe1937bc285ea4ee1243dd9102cbcf2bcbdcc5. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:01:41Z), 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/DE1A42140653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e60b1d6734d872bee76528e3ac02c584b5c73d3a8979146751650d14ceefef. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1A42140654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610e7d4439b1b5967e823fb8dcdf04a9d7366f06bda22c0c8af86179ac77ccc5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DE1A42140655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6b3df89682bd3455cd058917d791211c6263d5680703bd0b02dfa6634aaf73. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/DE1A42140656.
Ma tonkinoise / J'ai deux amours (feat. Jo Bouillon et son orchestre) [Mono Version]
Vintage French Song No. 147 - EP: Piel Canela
J'ai deux amours / Dans mon village (feat. Jo Bouillon et son orchestre) [Mono Version]
Dis-moi Joséphine (feat. Orchestre E. Mahieux) [Mono version]
Paris mes amours, no.1 (feat. Jo Bouillon et son orchestre) [Mono Version]
Donnez-moi la main, no. 2 (feat. Jo Bouillon et son orchestre) [Mono Version]
Le marchand de bonheur (feat. Jo Bouillon et son orchestre) [Mono Version]
Joséphine Baker chante l'amour (feat. Jo Duval et son orchestre) [Remastered, Mono Version]
Paris mes amours (feat. Jo Bouillon et son orchestre) [Mono Version]
Joséphine Baker chante l'amour (feat. Jo Duval et son orchestre) [Mono Version]
Revoir Paris (feat. Jo Bouillon et son orchestre) [Mono Version]
Minuit (feat. Jo Bouillon et son orchestre) [Mono Version]
Joséphine, marchande de bonheur (Mono Version)
Joséphine chante Paris (Live, Mono Version)
Une soirée avec... (feat. Jo Duval et son orchestre) [Mono Version]
J'ai deux amours (feat. Jo Bouillon et son orchestre) [Mono Version]
Josephine Baker en La Habana (Remasterizado) (with Orquesta del Teatro Musical de La Habana)
Recital At the Festival "The Golden Orpheus '70" (Live In Bulgaria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bb42cc6c65e98af6d500b2a7390f72589c686a28ad7347543e608ce75bc28c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USSM10109874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8daec193fc05b1a619462294c0bd3ae96d96bbc3f5f07437991ec97d5f09017c. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/USSM10022810.
L'étoile Noire Des Folies Bergères (1926-1940)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6c1173f9b361d8baf9c70a57459444a06e1e27a9c2e25070038f4fd837cc0b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:41:55Z), 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/FRZ111000853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09473f01d19fbc813b54082cbdd9da0a06149f6120921d688eec3817bd7cfe1a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRZ111000856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3898c47f8701fdd8a984b20f883e747e5c6398e90d7901b3f265f261229ec5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ115300980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4bc1c369eeb56bdc970bc2b1b848379343806ed4c4cb2bd3a9814f925595c0. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ116801020.
Josephine Baker, Ses chansons éternelles, Timeless Songs
Joséphine Baker 2 - L'étoile Noire Des Folies Bergéres
BAKER, Josephine: Un Message Pour Toi (1926-1937)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55906dcbc81d0039971c63022827d04109cb61875ee077ce6cc2a21afab53bb8. 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/HKI190216410.
The Star of Folies Bergere (Songs from France - International French Stars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f302283fd44d9b4cc2f355e1e24a450038dd9fecbabfe5727722d3b89b54992. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:09:07Z), 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/FR6V89200466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77021304854894b4db586f3b2561c71f49967c21ce55cea46b5ab8cff570698. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:02:01Z), 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/FR6V89200472.
Joséphine baker - essential 5 (high quality restoration & mastering)
Josephine Baker 1927-1939 (Anthology 36 Songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbfba7233d332931c2804c4554bbd5c3d805ec73a4bcf88d6ce5c946c4a4759. 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/FR8X00800198.
Les génies de la chanson : Joséphine Baker
Golden Voices - Josephine Baker (Remastered)
Famous Ladies (Josephine Baker - L'amour est un jeu)
Succès et raretés, 1953-1959 (Collection "78 tours... et puis s'en vont")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8ce422b3d15d4afaf9b33e746bb295f79352e283ecfb62a94539ebdceb92fd. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRW111103941.
The Very Best of Josephine Baker: J'ai deux amours
Nostalgic Memories-The Very Best Of Josephine Baker-Vol. 42
Josephine Baker: Collection belle époque, vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2323df4f57bef15a4332b8dcf1dbb1d7a38bd64314fffb66905c4be423ae4c4. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FR6V80353877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b26430f92785c121b077930de2c8d382f544c01c7c6eeea33aa304e03f3a2e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FR6V80353890.
La Petite Tonkinoise (That's Entertainment)
Joséphine Baker : Reine de la variété française (Histoire Française)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c7cd3b9b77d512c629e830068d43937381605b59f2feee3913ec3bcc40350b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITD541200616.
J'ai deux amours et ses plus belles chansons (remasterisé)
J'ai deux amours And Greatest Hits (remastered)
Du Caf' Conc au Music-Hall (1900-1950) en 50 volumes - Vol. 13/50
7 merveilles de la musique: Joséphine Baker
Blue Skies (Ultimate Legends Presents Joséphine Baker)
Bluebird (Ultimate Legends Presents Joséphine Baker)
After I Say I'm Sorry (Shellac Memories)
Ladies First! Hollywood Collection, Vol. 9
Haiti (Original Soundtrack from "Zou-zou")
Black Europe, Vol. 23: The First Comprehensive Documentation of the Sounds of Black People in Europe Pre-1927
Meilleure collection française: Le meilleur de Josephine Baker
Top 75 Classics - The Very Best of Josephine Baker
25 Essentials of Joséphine Baker (Mono Version)
Joséphine Baker en 20 titres (Mono Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc720b07abd84ce074ce5a203f644c80b54f263135c39b13e1dff6b37b4063e6b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEBL60219907.
Musical Moments to Remember: Joséphine Baker, Vol. 2 (2014 Digital Remaster)
Musical Moments to Remember: Joséphine Baker, Vol. 1 (2014 Remastered)
Les idoles de la chanson française : Joséphine Baker, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c737302fbec43760d5b3ba608b18ede5a991adc30d43d93ac60eac812c806ec. 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/FR2X41416961.
La petite tonkinoise / J'ai deux amours (Remastered)
Anthology: The Deluxe Collection (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a350d1f5ea80f53577566d749fe8a7383a4a0d4ffb3a55b6bd12d5d47ef217. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITDD82021165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c36018602e86452f7a275f9bfa559074b84ff493e223bf3b0b686ce9af2789. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22124132.
Joséphine Baker. 40 Original Performances
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fd46967b87e38518a85e8a4d225ae81a534dc958a0a024b66c91c129969de5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAVQ2100560.
Two of a Kind: Joséphine Baker & Rina Ketty
Two of a Kind: Joséphine Baker & Yves Montand
Essential Classics, Vol. 59: Joséphine Baker (Remastered 2022)
Three of a Kind: Josephine Baker, Yves Montand, Rina Ketty
Essential Classics, Vol. 59: Joséphine Baker
Blue Skies - Good Energy With Joséphine Baker