thumb|upright|"Buccaneer of the Caribbean" from Howard Pyle's Book of Pirates. Buccaneers were privateers and pirates operating in the Caribbean Sea during the 17th and 18th centuries. First establish
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 0x8152391774ab425555beaaeb6482d9dbc499ce1fc9b30928d64acba1cab28c2d. 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/ed9ef5ac-3923-420e-b7c5-945111072495.json and https://artists.proofprofile.net/proofs/artist/ed9ef5ac-3923-420e-b7c5-945111072495.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 0x676f6b931aa2bf2c4f58ec40094a76d7fdd90ce403707f4ecd5d18c099f2c889. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/USVPR0830339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb3082c3d08ed2223c455796150b2cf68e048d91db4ad1dba3258fdedd72d4e. 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/GBBZV9703214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfd50e311d0429a21e236980f3939bcbd13c5f73ed8ae399553e3a6d6e78858. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBBZV9705164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ceacf0f83de3b517e990f44a6232cecdd5e2e829329804138e0e57205fb2dc8. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USVPR9805667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafee85ae9377a6b454172bff7acf86ceba9768e45647019eebd5d91d987979bb. 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/USVPR9805674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024b385750b4770882873cfe595c1e78b464e1e25ae0c15e145f21d5aa188ab3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USVPR9805676.
Opera House Presents the Rock Stone Riddim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ff4f0432139b1a124cfe89565c68a903ae9bec9ca039ba912219321d74f1bb. 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/GBVVQ1022785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99cc309f76688ced05cd8a27b20f5f4bd21921477d7fb96203af9191be628ae. 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/USEP40811190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e9ededeb1abeea82c6e3877418063628f61727d491fd0b389b8dc7a604680d. 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/TCABN1327201.
Everything In Time (B-Sides, Rarities, Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aceb153153abf72286170c5cb982030490e5fc2124375958f42cd6e856e41ac. 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/USIR10312362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee448f693a26393bb839cf121b7aeff96c98070b840b2d0124e2a417d5dc8af. 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/USVPR9905860.
Na Na Na Na - Reggae Remix - Album Version (Explicit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56800838fd2b059071d750d73a5de572dbff25ea8b8024077b1ea63110efd0d. 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/USDJ20301067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a240ee5f7d2ccc05ffa0bc2febd14612d43e20907e8eac8915a26e2ff4188e. 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/USVPR9805630.
No Normal Lover (feat. Red Rat & Buccaneer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd7f984bfeb5ec4900626f6098d2d92d35fa692ab441242cac920e1e9361bc2. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZF931900068.
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 0x5395e2c9dffe3ccf0f1af7adadbb37fe639278643a8b9ebfd34873cfcf34a674. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USVPR9906156.