Wintermute may refer to: People H. Ogden Wintermute (1895–1964) American writer and historian Marjorie Wintermute (1919–2007) American architect Slim Wintermute (1917–1977), American basketball play
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 0x4f37bc9a564af45e87c47068fd4aef166ae312821c81f57f8b40580efc44268a. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4206fe6b-a207-4cf8-a526-e7f7e19e1f7d.json and https://artists.proofprofile.net/proofs/artist/4206fe6b-a207-4cf8-a526-e7f7e19e1f7d.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 0x4ef23fcdb845eeb77e2d1a2abf9252f04148d8fe23c842f6200d3b52293d8bcf. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/JPE560901302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51a5e941fba6768c409106f858af0aaf37c640b4cddc7627f10d3175941d68b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/JPE560901303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6857fbe720e2a390c333c8bc0cd1ee7dfd9b99adabb8f4f0d1ad74f333e89437. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/JPE560901304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ea274d7ed15a0de8978e8d07b5248094f4effe78af2327b54315c08cc000ee. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPE560901305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10f7ec65620a4b2e103774a9222c0cebd1bc1c9ee7c37c961fc2d1521f1aa57. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/JPE560901306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509ed6e6f90167155ae95a385bd3197e8eadbb1ba3c557d4a5b3263b04f20ed0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPE560901307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910149464e58bf14eeaa75ee197923e4c350d9a101d2e2238999d159e04923c8. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/JPE560901308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18fa7df2897184bd54c0ada13bd408f7ccfe912aba9f464ee7bc068e342f2a7. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/JPE560901309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a3e0234c2fa201a7ad553cbbee75d84d0b43337c9b3a187249a6b1eea62d83. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/JPE560901310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b4b6b8883abcd9f395a5f3a92b984458cf692bd7b2771ca5f0634a376ae3e2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPE561402222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e32d007d8856c4ce24c0fe8f3fc1d6a83a139b58ffbe44e433de7f07603e154. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/JPE561402223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4211462a512c00a8adce44696b5169a6a29e8c5a73a1f1abb0eb65c808d64a. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/JPE561402224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65415bc54bd812419a79b841fc30876c092b90ed54f5b1490844b1b041de08b5. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/JPE561402225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04dc449ebe3b370a14347491538722020b395961d56fae4f038ebd391bb726b0. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/JPE561402226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e05aeca978c6148abb25d8e9ff52f9cc76bde8f5285065dfd147d39c3b15893. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/JPE561402227.