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 0x938865fe81cdfbec14bcf7bd15f5c5ca566842c3dc70bab59c91b8ae7012e9ec. 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/1384b990-1a2b-48fb-b932-5db2623c2d9f.json and https://artists.proofprofile.net/proofs/artist/1384b990-1a2b-48fb-b932-5db2623c2d9f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
L’Orient & L’Occident - RendezVous: La Femme de Paris
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 0xe5afb4021569a21c0b677df9c2dcd0a12659104102686506f3b9fcbf3505c38c. 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/NLB1U2300018.
L’Orient & L’Occident- Les Grandes Espérances - Mots du Vent
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718c07b38709cd3acdf24282ab22d74609ae1edbfffad50503b1e809c6401471. 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/NLB1U2300020.
L'Orient & L'Occident - Rencontres - L'homme du train
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e69415a10d683fb3607c902b267d16ce1314b2c02b9615e67980d2023c06e5a. 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/NLB1U2300021.
L’Orient & L’Occident - Rencontres Londres
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003996cecafbeef0e49fed43ad15f007d903750e0ede4364f4134110bb905a6a. 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/NLB1U2300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac37b3f2728b517c786d92a3b277c0c0930e729012ab8cd7a626bf9488065f1. 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/NLB1U2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f36b846f1b07c811eb0c4b4d03b6789e07a38f34fee5b44059c1eb6c1cf041. 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/NLB1U2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8178fa49a2fd405177d56f290956ac6a7855534b4dff83f63f24c3f80428f18. 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/NLB1U2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa690a1da2f214f06219ab5635bd9d1fa7ed9b8acb924213a99dd7d9b85dd3b44. 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/NLB1U2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576c79ca20cd5e13bda71325b5f655f7661815775ebc08cfc113a5f97e5c85ae. 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/NLB1U2400003.
L’Orient & L’Occident - Rendez-Vous - Vienne
L’Orient & L’Occident - L’art de voyager: Le Caire
L’Orient & L’Occident - Rencontres : Gare de L’est
L’Orient & L’Occident - Grandes espérances a Berlin
L’Orient & L’Occident- Rendez-Vous: la nuit d'avant
L’Orient & L’Occident - L’art de voyager: Venice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003996cecafbeef0e49fed43ad15f007d903750e0ede4364f4134110bb905a6a. 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/NLB1U2300028.
L’Orient & L’Occident - Grandes espérances Bagdad
L’Orient & L’Occident - Rendez Vous - Istanbul
L’Orient & L’Occident - L’art de voyager: Amsterdam
L’Orient & L’Occident - Rencontres - L'homme du train
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5afb4021569a21c0b677df9c2dcd0a12659104102686506f3b9fcbf3505c38c. 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/NLB1U2300018.
L’Orient & L’Occident - L’art de Voyager - Triste
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdcdb131d50ebc6ab65afb2aa9e9708ba1cfb5d658eb91af7fd994a6edc8429. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:19:22Z), 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/NLB1U2300016.
L’Orient & L’Occident - Rencontres: Sœurs de Belgrade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a183c9b1add42c9b5dd9b04f8ebb32a1d4062a371229d28b70ec0458ccc073. 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/NLB1U2300015.
L'Orient & L'Occident - Grandes Espérances à Damas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027437c631b4a2efb014c83619c581123fca9097c5ff14dc82cf19a0276d2890. 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/NLB1U2200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b91cba1922a37c440b4e40df58d108b5dc570505bf06b22c99f0903a9d2227. 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/NLB1U2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256939d6ef2fcf385842ee6b4947b535ed7508f3190ee6aa55ee9bdbe058ea93. 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/NLB1U2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576c79ca20cd5e13bda71325b5f655f7661815775ebc08cfc113a5f97e5c85ae. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLB1U2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8178fa49a2fd405177d56f290956ac6a7855534b4dff83f63f24c3f80428f18. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB1U2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f36b846f1b07c811eb0c4b4d03b6789e07a38f34fee5b44059c1eb6c1cf041. 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/NLB1U2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac37b3f2728b517c786d92a3b277c0c0930e729012ab8cd7a626bf9488065f1. 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/NLB1U2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cecc22969108f1f4a4e5d32a4097b15bb12c873864ec3a28db0d5c65fc0d1b5. 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/NLB1U2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d051cc3d3a3b224170e0cf9a3a47477e462a523eb73d06557b8f57175e6029. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/NLB1U2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955f7648e070071b4bc47900a2299fa6e21ae534c660d9ed8feea442a1742499. 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/NLB1U2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d34aac6b0877d65275a33b8d36f38a252c660f1110679bc5a58cc20802f84ad. 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/NLB1U2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5013efc44208f1fd816ecd4002e8f4c4cb6198635c951495000f2f8a2c315ec. 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/NLB1U2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cedf4ac7c3be3f8588e82d57a221bda95e38f7ba660fbb19ef441bd787c3030. 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/NLB1U2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d34aac6b0877d65275a33b8d36f38a252c660f1110679bc5a58cc20802f84ad. 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/NLB1U2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955f7648e070071b4bc47900a2299fa6e21ae534c660d9ed8feea442a1742499. 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/NLB1U2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d051cc3d3a3b224170e0cf9a3a47477e462a523eb73d06557b8f57175e6029. 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/NLB1U2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88412d81880e4f88d25470a8a08a1ea916ae08bf52ee1be388b9e58fad7beb3. 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/NLB1U2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cecc22969108f1f4a4e5d32a4097b15bb12c873864ec3a28db0d5c65fc0d1b5. 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/NLB1U2400012.