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 0xa558a7d266f66faa3391b0905a25ae327ee4859c2400477ea5c34103750f3796. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb2818f2-a530-4154-8aab-43f2666663f9.json and https://artists.proofprofile.net/proofs/artist/cb2818f2-a530-4154-8aab-43f2666663f9.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 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 0x62f63f5936ab2aa62d852aef131810516363bb46676872da92adae2b581926c2. 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/DEH742409164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914ffb2e828f2cdb8b5bee31710502f3d10e8e59c561acf540674a73119a86c4. 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/BE4HK1900053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f897dca8b8712e16e11678ad57f027a99f3fbb924b4bd52449bcaf00bdc60e. 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/DEH742418768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d399f03a294ebd8df0b3c55705a6a5bd569d34eee84ed9dcb947ca77997fb38. 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/DEH742415313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3e5b7ca555a6f9f5b4967a234abe0c441ef01ff79c66e3d876bd96c7a10b25. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEH742403199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580f8852ecda12132d42a0c5ff2d85f30029a7cc66efe6d14ecc405981f5e52b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEH742330639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0a6d8a4b122fb39f355048b4d6e85e30519561f99b8c095112650f1d58cc27. 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/DEH742321113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71557dd47f532a7f71d33dcdea50f985c5931b7ca4f55491d382c469e6a3af2f. 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/DEH742310783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f40b328ad3f22f230ed4013f0b3d920a5fd0b23f43444742760a8abd68948c4. 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/DEH742305301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3334bebce38aa516cc57b56c14f364d51c3733e2ec44d2955a84637dd3640396. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEH742229252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bb0f0dc2c6d1189e6cafcec05b270846225c0e60e823f0efdb2379e9e24eee. 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/DEH742224981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d32b176465c9483dbd291b9e058071fd133caa99f52375f68e549cf7620924. 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/DELK52219029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1b11aa7be3a9c7c8440666f1f408600349815cb4818e4c2bc72727bbac04b4. 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/QMEU32115033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df01e46cdde7317509010e5d2b1f29f0264aa152e8b9342060d27e1b912ecc9. 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/DELK52112011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ed725da5277a8ef859770782cf3041c739f1f1068bb580b32b1f0ec48be231. 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/FR9W12100468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d88aa553bf74b4fc698c26f340f65fc8ec761a3ba2017663da4900d883190c9. 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/QMBZ92078062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5be894ad24b839395edf5dc6b8971264479186d5b6a73d6cd6f4470a702e805. 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/FRPES2000900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb37317d56f629528d2bfe6c252f19b1b979dbf5624556bad6cbceacbf2948a. 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/NLT2H2000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07958e0a975d6d4a0cff39694654bd8f2cdc6b84628ed618b5e98a907981465. 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/UKRBV1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016319727bc4b9f4c045cd24bdc6a2b3abe66677bce08107a1b955fb7fd3513a. 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/QM24S1826643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe860d2e6611f51a88f74abcf9a0cf2c0c28b93d0d4875bd2bba11dbb29942d0f. 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/DEAR41742793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5789f31209982ae335ea0dd5ced6524a9fa9af5892fe08c01a2f0987e0c8bb. 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/DEAR41710497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca58debc07b07db45a56f53a0156309d57597e137f7a0b76f28d8a045239b320. 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/DEAR41863272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d8a2a2c39884a442a6e7c5569c739935f4287dc0447475848079a10feb78c6. 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/NLZ541800490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e2d9d56b6eccb526a6a21e0f787b0ba7e5fcd7155de01c37781478afb5a2e0. 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/NLZ541800553.
Las Vegas Vocal House Brave Heart Presents: Records54, Vol. 1.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29414f467c9e943dd406eb8adba1bb3247ff600c9a37158259257ba1cbb39689. 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/DEAR41644913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfa90c9306ee59e9121225fad1145b4e090e86d2c2c89bab9689da97962e750. 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/DEAR41880806.
Soulsearcher: The New Vocal House Experience
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5115145e63f70fef03692d70455d01f4dc5d5f388cc24ed546e0839deccfc58. 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/DEH742438986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb191764d2b60ec76bea07766c8b1ae659930fabc757228f20b9f5ed030a830bd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEH742439104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fe7455e59781e92c2ecd493927abe0de355f4cc4c71a8901c6506606fa61c2. 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/NLZ541800393.