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 0xcdc11f9c28bdfe924bbddcda6d5f05dc3d3480a929d13dad2850b07ec49f5bf5. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/763b7d23-6c5e-4668-b2bd-13cf8d3e8a38.json and https://artists.proofprofile.net/proofs/artist/763b7d23-6c5e-4668-b2bd-13cf8d3e8a38.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 0x83f42d2788d52ed185c59e66db57ad86051213e9e2987a140cf8a07712338c6d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USBEN0852807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953650439a9da174757a9b9c0a71f77836ade82158755c45b8b2ba8368affe9b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBEN0852601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8adaec8cb71980a463cf83238101f81ad190a1227000b79471a286b2dcefc3. 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/USBEN0852602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fabf96e769b9f8f956c63338f4e848ade70337e8ae977a3ae88ec3645bdd2f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBEN0852604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e228e26e39203c9cb06ae1f8b09d41f4c05453c69b43103e44bbdada8ff73a9. 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/USBEN0852606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18a82497a0dc5aec3864453045a0d4935102428135e135148be985379247000. 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/USBEN0852608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa57b26090a1169502fae11d2238ee71a20d73b50f99de66f9e2eaa934cc331. 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/USBEN0852610.
Soul Jazz Records presents MIAMI SOUND 2 – More Funk & Soul From Miami, Florida 1967-74
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c810db53faf28bc1814597ac026c38a84295d784a8ea4252594716f866f8a24. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBEN7277006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcefac35701ef8fd85151b096a25bd63e8e1e581b5c8aade25e5fb741f507ac8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBEN1257406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220795398b19a84d369141397b748b255d28b73da2e0a72193eac3aa086a2fe4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USAT20400301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcecf8845c058eee050d96328e030dbd68ad2680c73a246bc05b98111e2808c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBEN1256605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fff010badcb56590d6bf328f27fb376cde8834b61511752eafe4e947ede423. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USBEN7551702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc964ea15cbb6558ebb606d99c45ebdc0b6a26acbec97e83edd78ef8f7b17f220. 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/USBEN0772311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb59eb6c465a0b76e3e0a26383c2edc46216d71b7c00ad372b74103bf3bd967. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA370527191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723a18d2d8b5776b3732fdc03d604f3f926f2f97ae61d6efdc98a68ff3f854cc. 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/USBEN1256602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a98ee7d1501273630d0a127e72d4f5a5868126ff2ad6e4c6f6236eccea9665e. 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/USBEN0852501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905de06c3ebae2610ca926018ea27d1985526add9e4d19f7255557affb716037. 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/USBEN0720101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8e2c8dcfc31a7806d6cd3d5be2862a73881c3446011c458d4b702685f765ff. 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/USBEN0852505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5300dd1af777a4b7d4680d2a7cad3aabcc3d59095822401c1e623f59e071f31f. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USBEN0852509.