Bask may refer to: to bask, or to sunbathe Bask, Gilan, Iran; a village Kalle Bask, a Finnish sailor Bask (horse) (1956–1979), an Arabian stallion Bask Om, a fictional character from Zeta Gundam
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 0x10f1afad2de39bfd0de7f403694838f243549f6c0615587196569ae818f20ad4. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd271d44-d0a7-4bb0-9846-798f5b48ed63.json and https://artists.proofprofile.net/proofs/artist/bd271d44-d0a7-4bb0-9846-798f5b48ed63.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 0x9f67175ae853faaf73a7d437232db579942ddc98326b1bcee19345255ad91eb6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEZ651702366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e44e8137748b6b3e9a3032ff1d198553fab70c98d88aec07f6da6d0a353023. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USQY51709126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98741ae868effc8beab61dafe172143351778714a6e3b4835b4bec718725c84. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:51:28Z), 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/USQY51709125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283658cb9c5e16d5e7b8beaef872f4e82d082183b4f39f315148304bd147a61a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FR33T1952601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4134a4073ee72dd4352979a24fe56c7fa4c4c04760d378c17a244c7c42e23123. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR33T1952602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9aa1644a3dbb41c12c2658eea4b35bbe4074bf78647aaecec4fec7349cf3859. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/FR33T1952603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf438046c2bc4961a21087743f88fd9d600c1e0ef2e4f4a26489a56418d3cf4. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/FR33T1952604.