Samuel Lassner (born November 25, 1992), better known by his stage name Prince Fox or his alias SMWN is an American musician, DJ, songwriter and producer from Manhattan, New York. He gained notabilit
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 0xdb60aed01bdcd190d7cd059f24ddc91e6c5b5428e10fb408c5a374fca80f8b8e. 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/f8f7de25-d76c-41f3-a0f1-9de645c18f3a.json and https://artists.proofprofile.net/proofs/artist/f8f7de25-d76c-41f3-a0f1-9de645c18f3a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Just Call (feat. Bella Thorne) [Remixes]
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 0x89467d2b0f8c88b5e104eb513b39ec0701c661bc19860ff5080d4390e9b7ec32. 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/USDM31793402.
Just Call (feat. Bella Thorne) - Prince Fox VIP Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd96682436915fad3c5ca88e335aa015da17fb388eec44342a5cc4f4c0b95001. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USDM31796408.
Just Call (feat. Bella Thorne) - T-Mass Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c72a5164eecfd027f187cb5df9973a75a188c3a0e2162ba1785485482d76d16. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USDM31796411.
Just Call (feat. Bella Thorne) - The 9Ds X Damien Anthony Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47813121dcee74adb00527f94b974b680fa6ced4defbd1874e20222fda04ce2b. 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/USDM31796414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89467d2b0f8c88b5e104eb513b39ec0701c661bc19860ff5080d4390e9b7ec32. 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/USDM31793402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4a260ff3e1938c603d1f3278f5045d694e8e1070043cf51d918b9425dbc42b. 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/USA2P2245827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb3b994b065535b0e27944ce2c6a4c54bafe5b31a5837c7ed39540b85d075e1. 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/USUM71803407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8b42e5e9c69fbc60a89fde792394ce2634d6f2ad7d63a7c141a9981751900a. 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/USDM31793602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c690518c704d35f2d73bdc43e3e4a25e2766e4af5d24ef4aebd0a315a891336. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUM71711908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf7f44adcd4d4b978820d4e379c337e6ffdef1220a2efca5ea966d9ec6c31e2. 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/USA2P2012802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cfc6c9bdfcc8ff8b0cb8ed8136194d4002b5d2820c3d541bb9756065cdfbe2. 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/USUS12200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36303274ab001df0662d4845024bfabeeb9db56492b3e385b86b01ba7edb6554. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USWB11702348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4599cb05de815a442c3efbfcb49627c9884460f30d2b26df368aba10b47d397. 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/QM24S1839024.