Offshore may refer to: Science and technology Offshore (hydrocarbons) Offshore construction, construction out at sea Offshore drilling, discovery and development of oil and gas resources which
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 0x2025ab508a8ffa5b42ca6125b02eee7858feb7ffc0e403714fb1cebf46030536. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7bc7386-d903-43ac-b3ab-9b592640636c.json and https://artists.proofprofile.net/proofs/artist/f7bc7386-d903-43ac-b3ab-9b592640636c.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 0xe82ddb665f0f3eff9cb2deef6bf7ddd1347f33980350f8d52e7ae643c58fafd8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZNWZ2118943.
House Relax, Vol. 2 (Deep and Chill Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c9f7a0e675e4d0a94a32566add9ed1c09666e7fcf34547e29e468994867d28. 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/ITAD81700030.
Be Happy, Vol. 2 (Deep & Tropical House Selection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c9f7a0e675e4d0a94a32566add9ed1c09666e7fcf34547e29e468994867d28. 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/ITAD81700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5b03535565f8ed5c2cc25c746a8872f0fea101e8afa48bf1b99c963850a561. 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/ITAD81800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee03f0c3b1447afccffef129b08c9675a47fe983a3dbe5601e4ebd8356dc369. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/ITAD81800069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c9f7a0e675e4d0a94a32566add9ed1c09666e7fcf34547e29e468994867d28. 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/ITAD81700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee03f0c3b1447afccffef129b08c9675a47fe983a3dbe5601e4ebd8356dc369. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ITAD81800069.
Sunset Vibes (Chill & Deep House Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c9f7a0e675e4d0a94a32566add9ed1c09666e7fcf34547e29e468994867d28. 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/ITAD81700030.