Prevention may refer to: Health and medicine Preventive healthcare, measures to prevent diseases or injuries rather than curing them or treating their symptoms General safety Crime prevention,
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 0x8b4f946f35869b0eac69a769422c04955081142c4277a2d5193c9d6338e48572. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46a9386a-cad0-41ce-9f46-e61ffb31de68.json and https://artists.proofprofile.net/proofs/artist/46a9386a-cad0-41ce-9f46-e61ffb31de68.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 0x1822d8aafe665df1d740e4a0c6a50b5763b910115e76b6107b350399814023db. 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/QZWFU2433081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce5fb426e9edb48a813cfe2daa4090e1c742a55f42d8dc4a77340a1bb696ca8. 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/QZWFU2433082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e831b32eedf363bb0d949f3f5f1d910b7282d56df1cccbb45c4463079d35f09. 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/QM6MZ2400196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c463e6c8f2a8c0bed999f43e8daffc020d0ed05e5a4b6a225be7c89a9b483e. 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/QM6MZ2400197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56a020a998ce8d34c2def470a488dccc88c6156085893c5d4144cfd36888b30. 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/QM6MZ2400198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28076f701a2dadf5fd2fccf8b4332d9394e507e7ef52335492f489c73f40274. 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/QM6MZ2400199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98117b61e8e5c2c3e9d8f2eccd6e34faecf8decad2816f9525a9a8a8f3f62c6. 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/QZNWZ2321945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32b7e66122c36885ec76dcdb21f28ce9afb200f45dc7bb699ee8c2a110aa0ea. 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/QZNWZ2321946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aff37cb774bda79ba6763d33df4596454a10a0523112145632d09e303612c85. 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/QZNWZ2321947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8f5b39cee3f205d6cd5f9d8b4ee7cd5d2786fe467a8866505416943b3a46a8. 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/QZNWZ2321948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce59e5adb312583b9ede1cc632b9298e8696d39ada7e59760947f8dbeae4877. 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/QZTAT2289021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9547ff1085d8a52efa35ec19fe066679195303022f283bf3d37d99f5ee1902. 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/QZTAT2289022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ed718826e54a6644fd82cc10e3a934ef962d5e3ff34f1a99a7fae21804bc45. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/QZTAT2289023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2860cb3bd02a49e56e50e880c0778d7bd14d40874865d22d1d654483698001d6. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/QZTAT2289024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90abd380908f62f3c934266f43ab23f35d0a7cc7b30b1626cfd96dd534aa5398. 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/QZHNA2108783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7329c8771f06c237fe57bb43da7adfd88b2fc9db04aba1ec31fed98ac3dbca21. 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/QZHNA2108784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7c931dffdaee3198ea011c19d3a38959c76edc67e57546fb1559059b45642d. 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/QZHNA2108785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d3b8558ebcb95470cc586f497b27653f3b54bee3023d48820c30c43f176026. 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/QZHNA2108786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc393371932f67083c46cd4f0484ee4d0ae1845870f0005387f6832b38ceaec92. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZFYX1963310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b352e091ecfffd8569b6dca98e92923b664bc91882f356863835a677638ec5. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZFYX1963311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9e0b2ce0b97049472dc2ecf8f98148e757650ee35da0e06a0dd12356f2c4cb. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QZFYX1963312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23957a82914b8f6ad0d6a460859c057e8520403122b30b46d0a1faaf724f610. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QZFYX1963313.