Christopher Robert Bear (born July 19, 1982) is an American multi-instrumentalist and composer. He is best known as a member of the Brooklyn-based indie-rock group Grizzly Bear, with whom he has recor
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 0x0178008b4dc2cbeeea621f1bbe599d98d0572d6cd91abdafa8b1e6666b66ae94. 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/43c1f6fb-920d-4a7c-bd6d-06ceaa7794e1.json and https://artists.proofprofile.net/proofs/artist/43c1f6fb-920d-4a7c-bd6d-06ceaa7794e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
High Maintenance: Original Music (Season 1)
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 0x1af65ddf0920005a668f429fae3269b7d2deb5030d2d6c8b6883cd8be090ccc4. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USHM81698343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be56c2feb4683721484e30f35bded05a37f2357f88e08d7bf71b2b750218212. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM81698344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6166fb790bc6c72538f728bdd20875f452b0428aebebd1faaf8f1c386699d9f2. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USHM81698345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29b25609e0a269a1e225460750dd8583e2a16e2ae6a9636a2cb381dbe3b337e. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:41:58Z), 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/USHM81698346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21194bd9ed47605de3021f4e14a00c7862905e215d9293fbca0788576bf43963. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USHM81698349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2724fb3cf3691ddc286797af4348c9837faf2104b2bcea3de20b6cec52f31e31. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USHM81698351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0924e9a5e0c62a9dc2e86bad0759952fe879dd787340553fbb643f356aa74e. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USHM81698354.
High Maintenance Season 4 (Original Soundtrack)
High Maintenance Season 3 Original Soundtrack
Past Lives (Original Motion Picture Soundtrack)
Mother, Couch (Original Motion Picture Soundtrack)
If You Were the Last (Original Motion Picture Soundtrack)
Roofman (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf317ec624809643b0acc4480c4173fcb17ed479297f3a4cc56efae02fb47f981. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBAFL1600031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52904980dd798451037550954c51c3e032c2e5b0e64aea91c13961457feaf93a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBAFL1600057.
Home: Season 2 (Apple TV+ Original Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc59902a4fce3fdf4fbcc899e31587e942be186465af2dcbba6c56ee22b71d7. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USLS52224914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b43da858fa79dfa1f5846c3d0f68aaa8cb192ac9e2826aee3d5f638fd63689. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USLS52224915.
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 0x5d746bc7bc5845a02539b688c820c5a775f567e2bb3d16e57a2e2684c82ceee2. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USLS52224916.