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 0xfb5f8c59b713d3f2d8fa0d62fd9a48d1d3f9dd78ea2dcbb4a1e6c47264f11f2d. 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/6ceea28a-9cae-4320-a16e-6759a26f293b.json and https://artists.proofprofile.net/proofs/artist/6ceea28a-9cae-4320-a16e-6759a26f293b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Toothless Hawkins (And His Robot Jazz Band)
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 0xbf34a83c8a7bb03e3309e47763a85a192f05fc2926ffad926f9432d221648b99. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/CA6D21001040.
Legends (Hyper Potions Remix) [feat. TeamMate]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf514f81fc63564c49993acbb733693c0d241a191bac70c3180ee074c76c3363c. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/CA6D21500393.
Tick Tick Boom Boom (feat. SPLITBREED) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cea44ee92cee3e25134bca32908364fc6d8c5ff72e4aa9b5bf60fc6ff42ea1. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/GBSMU9131796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe97eb49c95803e0803eb8e1a9829b155eba78c16ce0b0b09a1ecd095215f9c4. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:05:20Z), 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/GBSMU9131798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f4ef46e1cb671121d243e606d8de05ed5c24270676370527e1329596e79d90. 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/CA6D21500266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598a8155db649dc07fe87be8999b03697c245723cabe11d2121d62b6c3227a36. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/CA6D21500215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381b71e2ef2da5564df03e5459f27cfe9492b0f49684e5f336d7f51aaf47057f. 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/USDM31573002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8601a1862754d2ee7befcabb30b6a6002bb62cdcc9842b26e05b3854affa7d. 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/USDM31568403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb6c666037f8c7c2a1bdc4f384583a7ee2d452c5214380f4ffc4736a4d73b46. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CA6D21001070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5617dccdaa01ba2e33af32fb38089ca6ff8c3fdcaccb35ba4fa51fc081e95e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCABS1341024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598a8155db649dc07fe87be8999b03697c245723cabe11d2121d62b6c3227a36. 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/CA6D21500215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd22cf775921ace70ac2e0127b05b8719e5c140cf935e636817808cc2963782. 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/TCABS1341028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5617dccdaa01ba2e33af32fb38089ca6ff8c3fdcaccb35ba4fa51fc081e95e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCABS1341024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd22cf775921ace70ac2e0127b05b8719e5c140cf935e636817808cc2963782. 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/TCABS1341028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731e1ed8f9db8845101b35e0e53f5a1dfe3ae0eb5bdeaaeda997c3dee84ffc00. 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/GB2LD0902330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffd4b2ad9146f18e324b8b96fc8448805f4b2b0c91dd7e7bb1b1916a99aa502. 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/CA6D21001035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f4ef46e1cb671121d243e606d8de05ed5c24270676370527e1329596e79d90. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/CA6D21500266.