Bermuda is a British Overseas Territory in the North Atlantic Ocean. The closest land outside the territory is in the U.S. state of North Carolina, about to the west-northwest. Bermuda is an archipe
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 0x70e9590aac6eb84376b65ebfd814341adaaf54c7bd7e3e05600d5a9e3b2e755a. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4dc56254-0748-423b-b53a-9e5631a934d8.json and https://artists.proofprofile.net/proofs/artist/4dc56254-0748-423b-b53a-9e5631a934d8.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 0x50c3684d19e21508fd9baa640f77b0ef3992808fa421763dd081870dc6cb0f9d. 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/CANEF2000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fee80015b32fe67406dbb57cdc3538b2b4635d7b4277fa2d26ba3612ab3a030. 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/CANEF2400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a33f7ad6796dac1c2ab1ad8661309755bb132297f58c342c2ed8621034207f. 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/CANEF2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2472947c6b7d5230a015456c31530253da8b21e4a50a91ba394afa3227cb8d2. 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/CANEF2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f75d91273d6a3f9a2afe395549eca59afd931d12d317523e876a3d113807083. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CANEF2000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf8d9ee18d25638a62e2349b502965ec6d5d93b2e2ce9c9673dadfb771b5529. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CANEF2000012.
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 0xf63fcfed4d1aff3247f03f991ae0fd93d55db5d49b0a356340a35f2bca1e4855. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/CANEF2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f75b37bf080aaa18f92f4a6bbb723aa046e5bd2a0f621a3e79ccb57674b0a4a. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/CANEF2000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5501946d5d62e918dd98a1cb1ea2042cad12c001810b7f5dcbe88777fedcf4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CANEF2400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e12264badbcb7920f90c927915f4d12dc7d3615de0bc7bb0ba6ab256cfc9f4e. 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/CANEF2000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f689d46b6ade3bdca134f6e35c2486d86807f33f822b1c50c08f23d148a392. 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/CANEF2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65707733b6d9038052d55c8b052eeea0b0b0f0d7b8a2a517646159717e89e8e. 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/NO2DY2500240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee403cfdf213988a96d912cc81e262444539e4708a2e381fcc5855eef69aa01. 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/NO2DY2500241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c133e6edae6e6b1490b6b6da4201d57bd576330015dd7fd19cb156f9faf6b4. 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/NO2DY2500242.