thumb|Leroy Sanchez performing live Leroy Sanchez (born September 1, 1991, in Abetxuko, Spain) is a Spanish-American singer-songwriter. Early life Leroy Sanchez was born in Abetxuko, Vitoria, Spai
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 0x066afd952f53a120612579c11821bc6e1e5f399ee51e289028acab98946ee7dc. 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/fd2b96b4-50fe-4387-b7dd-706eec93a454.json and https://artists.proofprofile.net/proofs/artist/fd2b96b4-50fe-4387-b7dd-706eec93a454.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beauty and the Beast (feat. Lorea Turner)
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 0xc5de206504f6271745e8dfc471a6a067ef4312e6b48fb5ebfe7f5e5b15a9dd3a. 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/TCADD1796336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e046e4cba19d670ed3970166132e582d2ea74b6df52d495c0c3e8b5c34140c7. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/TCADJ1797895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecedaad73bbc5216509f1e44a22e2ce4c45b505464f32d088b869f1e92722531. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USA2P2023657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af4023f6ba03a348015fb1bb0acff3f6f1b3bafd80de2f7f792885c94d1ea22. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/TCAFE2024330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f69add796b89af67779bcab327873ac2bb1d0ce01535dcc3e955070f72fcc56. 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/TCAFE2024174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c9b33ba6dcf10e09f5cbdd886d04587429226c26d210e788c539df38137b7f. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/TCAFE2024195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b11773433cc043807fc81d34d8c710469277ea9d6c8f9234226aad2c4c15508. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/UK6KW2100791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200b4b18183afbfe5619aced0f95612a7f6956597697175871a94146378e9c8b. 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/UK6KW2200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd63933afc84b60636a2a4db84a63f65c9bb5938afcd924ce6907ae817474beb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/UK6KW2200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ed0bfe8ca51e66708ca37cf15c70aa1cf59d91a2c70d65249a7ae36f848c49. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK6KW2200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392f3fa2a30e47c5872f3fc6745d53e9df5a49f9e12545a4db59fc34cfcb1e55. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/UK6KW2200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435de43499f084d25a6961e6975097f778e6fb562a9a99ca9e15c60c974cbef0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK6KW2200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03d182dba72f85cc95825da0e91250cbe3234a8fe9ce35dbdf23503e590c4d1. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/UK6KW2200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c6e823d2767582d87d47712ee61141e265122a8e33b723876b8601d7167c0c. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/UK6KW2200037.
Una Señal (Inspirado por "Mundo extraño")
Una Señal - Inspirado por "Mundo extraño"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a83638604e2b82661d88586f1f779cb390cd7524f1258053c54337c60a4fcc0. 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/USWD12218822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef490a1f8a7fbbb79d852a2cec32eb8a21a522f38916c6f6d014b7e2135e2d2. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZTB72303322.
I'll Stay - Strings Version - Live from Elbphilharmonie Hamburg
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e24f3f08aa9438a991102b4fc33799cf5c8156c76ec96348615180b50ea8462. 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/DEA372013655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0b1b86124545f928eb80b3f5daa69235a11677a15560630fca595846fbfde4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US39N2403162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b02c632db40b4b61b2c4bfe2a4984175b42bcaa03d17cdb8b1d8fc938e3a5c4. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/US38Y2418898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e8bc8f4462582524522549e8b4631379cf7bdfe914c96f8340ed83b120f4ea. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US38Y2422015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79295167787799d4d39508aa03cc0f516ba349fac94dd40c54350f1a04ab373. 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/TCADN1897041.