Greyware may refer to: Grey ware, a type of pottery made of a grey paste Grayware, unwanted applications or files that are not classified as malware, but can worsen the performance of computers and
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 0xce43d395381d2902c3a81130f08deba77717cb9131e6fa8da9dab531a24761a4. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df0135a9-db8f-4f81-bbdf-e91ff5edb4a3.json and https://artists.proofprofile.net/proofs/artist/df0135a9-db8f-4f81-bbdf-e91ff5edb4a3.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 0xc6f539300c7a8e4878eac5f94f27fad0ae9a8a5f8a6ff25679817ebcd0a97ba2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNWZ2464514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d3f291c375f4e82864aabd30f5e9b6e9941d194f1d55f11a0f6ee34a3fbdda. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USANG2424028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce411782671b74570cf29f0c4e8995fad60911331f4d9dcaa99214e509a26c55. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:18:37Z), 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/UKZGC2409631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d594013102d7ff860334f1276e9607256cf2ee844914324f5d7c7fa485dc79. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/UKZGC2411320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156fc7fb635606dbe5bdefb6db61561b842dae9b89a80ed2717e71282297c146. 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/USCGH2567605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00146f72269bc66778245647c94bd5d2137404b98a6966ea6121f57376607bbb. 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/UKZGC2501096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30735f1011854e4cf2c6788d0eaad5c25da5a783d71692c82f073efa3a1cb93. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/US3DF2536224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf847d9df1c38672a0755fb2ead43afd3312ddd9779015ef6eb17af277d9ee10. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US3DF2534089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133269f3af2dbcb73fd55dae405c854a4a18276ddcc1bb7d04601613f533544e. 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/US3DF2490955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c8c251d1384b6f0ed136316f9f226ae2adc42e48370aa6afa9b9a347179d9a. 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/FR9W12429333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158cb96521a50df3bb94f16c87c5f8fd3549429291a13fdb92c68e485e794898. 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/USANG2437891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0185a39f2126ced9a8944254793584f0f580d141a88f759fd675b11b2fa5c7. 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/USANG2481757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa8733b48d9926178b80c595d75be3e4afd52603a635f37e797c9eeb855fabe. 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/UKZGC2411169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce411782671b74570cf29f0c4e8995fad60911331f4d9dcaa99214e509a26c55. 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/UKZGC2409631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d594013102d7ff860334f1276e9607256cf2ee844914324f5d7c7fa485dc79. 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/UKZGC2411320.