Patrice Sylvestre (born 10 February 1973), better known by his stage name Slaï, is a French singer of Guadeloupe origin. Sylvestre, born in metropolitan France, spent his childhood and adolescence i
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 0xbb7ed69abc406dffd6608a6ecded413e71d991e5077ca9db3935f62096abc6b1. 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/b442b25d-fedb-4cd1-9aed-349b62b0a9b3.json and https://artists.proofprofile.net/proofs/artist/b442b25d-fedb-4cd1-9aed-349b62b0a9b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x2aeb2f02961a129a7390d8835de2160b704065b2286b551423e5477d593b6ff9. 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/FR5R40400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05acaa15556471dae4c5e9801934a5ea67dfd403a7650bf717d82d68453a653. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR5R40400120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60764195cb68e24dedf7365db7db474a21755d60c81ef1476ab9d2ab3a368570. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FR5R40400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0eff654f4dfc21d4733ecbf51bf20a9f09d292c824e39aea2216aeb0dfe3ed. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR5R40400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4c5cbe1e2cd35fc5278fd036def8277732d5c018ba65893e76b26e665489bf. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:00:20Z), 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/FR5R40400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0676f3dfd4b920fae566342fda2e2f3a345d0dd8b2f14a2ee575688238474e25. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR5R40400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714a9f49c9383551af307b55cb3a5dc507f8645822cd286fc44a8a0aa912ee15. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:03:56Z), 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/FRZ080800521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98315750589d5392318c016b721df73894197049c484929bf8efc04ad89d49a4. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:33:16Z), 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/FRZ080800522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786fb3be58c914b9baf0dff7c4de64497f09ea39f197f3121736cac2713fcfe0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FRZ080800523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e6f1254f006ce75cf233d61a35491ca6dba878591935b4aa8c1201f91708d8. 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/FRZ080800527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810fb814c4ddab4d2bc9ed77436e4b6bca1f01bcfb7186c77e693a36e281760d. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FRZ080800532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf6bc793b3699b10a4a3f137b065e1c1535f962e2fd3edb219b9378ed15715e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:33:04Z), 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/FR6V80667601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2368cc7ca8b3f567bee250f61a582c72a0f82de28625c497690fadb4fa8f6dd0. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:00:29Z), 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/FR2PY1101220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1158d89b10a836b591f51d5b3ff774fd1ee4ec1f9836a715628678f9bada40f8. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/FR2PY1101240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77569c8d52820a646854946937a4d130a365d5564d21032734bb00752f7410c1. 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/FR2PY1101250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd36ec34f9f597496280e2ecafc1f9c91fbb163376268974d478d220432d701e. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2PY1101280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd756b22f1b457125d9ffd8ce23d1a366ac8888ae733ceb8b6ebbd8899da5dabd. 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/FR2PY1101290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cbbd8d347f3f45520f7762cbc92c6cade230a16a48fb4cd22e32c8cbafd3eb. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR2PY1101310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a2d88806210116294beaeb257fd07fc969464e6eda93935901e4cd2e683deb. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12141957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583b3638c48b3a18593d00aa3982df75917e3ca23e008f2ec7924fbbd67a1355. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FR9W12232905.