Arthur Clive Heward Bell (16 September 1881 – 17 September 1964) was an English art critic, associated with formalism and the Bloomsbury Group. He developed the art theory known as significant form.
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 0x64da253f966c6900b46d33d8100b7e4a0972b34e1ca28b8a6d29d37ff96ad520. 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/27aa5c58-d385-4a76-98c5-11ce991c7401.json and https://artists.proofprofile.net/proofs/artist/27aa5c58-d385-4a76-98c5-11ce991c7401.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Clive Bell: Shakuhachi - The Japanese Bamboo Flute
Komoro Bushi, "The Pack-horse Driver's Song of Komoro"
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 0x649e5fc080310ec0c5912a1908308f1a60e28f5af5e4c8d1b3c248bcde4df6e6. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/GBCKG0500146.
Bell, Clive / Ross, David: Mystery Lights / Nightflower
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9c24f6a3acc9764a262658be2584724ab6aa0142794e2e1e09b64901b07311. 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/GBAYC0500299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2610b12f8ecea9c0d4dceaeddff8ee07f6c1d6a8f9398cd2b1e23dd90d28fd3. 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/GBAYC0500306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b78daf434394f28308c3146f4836207d7349686cd97bfe3f3b8513a2802a873. 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/GBAYC0500304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755486ad42006374dbf3cdbd0b48961720ebff5b41e329a0477bb80f96723be8. 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/GBCKG0500148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b11fc6dc39bcd89003cedb9adc77aeb9962da2451cefdafd7d91477ec080ec1. 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/GBPFW1100556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9c24f6a3acc9764a262658be2584724ab6aa0142794e2e1e09b64901b07311. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBAYC0500299.