Spencer Radcliffe is an American singer-songwriter, musician, and producer who has also composed instrumental music under the name Blithe Field. Career Radcliffe began releasing music in 2008 under t
{"copyright_id":"0xaae46fb5585bacc71915ab5d5eb6befacdbc4c23a7303a2f6f2c9ab0b56b4104","name":"Spencer Radcliffe","registered_at":"2026-06-11T12:25:06Z","symbol":"NIM0027612","token_address":"0xe39e582d8d3c09e35adf50b5dab05bbf595e54d0","type":"artist","uuid":"14a0765a-5ae9-4fdd-907d-aa5efe7eaa5d"}
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 0xaae46fb5585bacc71915ab5d5eb6befacdbc4c23a7303a2f6f2c9ab0b56b4104. 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/14a0765a-5ae9-4fdd-907d-aa5efe7eaa5d.json and https://artists.proofprofile.net/proofs/artist/14a0765a-5ae9-4fdd-907d-aa5efe7eaa5d.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 0xb6b66475406d860a21cf176f284a529523e67017f2fd3fdf6c6ad3e18af23abe. 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/QZK6P2084929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55979340df5484a9a10cfa6f86d92fd92b4df983af12d0c97965514140196e36. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZK6P2084932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc952a2d823829aa0a25d4d5fb72165c0f38c7c4bc0fb50a2eec6e7294fff3725. 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/QMCE71301140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4ac5214ca14426b8fb24c3468bf403b7962b4c7b46da6ebfa9919478556dce. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:58:07Z), 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/QMCE71301141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44ccd8f54fa79e9f8d7ecfefe740b4f9ab548d474417503fdf6670f59d7eebc. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:26:50Z), 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/QMCE71301143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8b874ee57d57449ada9002367c5be3a9e9bb1a2db69f0ed2c25d0acea325df. 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/QMCE71301145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e13937e24bff0aa78ab1f275400bd0dd8593d661bb3e9b4981fd97a8b5847a. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZDA41824181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa5cc754d2ebc7d56797aea2915c788489c5d4febd1cd16568ae29eb583d9ed. 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/QMCE71302273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df3a0f8ed22f88f1ed99449bc9ec1e004bc9bf7c0a4989627dc8a1fc751a9e1. 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/QMCE71302275.