Brian Justin Crum (born May 28, 1988) is an American singer and actor from San Diego, California. In 2016, he came to national attention competing on the eleventh season of the NBC TV competition Amer
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 0x71e5075405ca10e0683c9f7acad8c56e6912e0d5c28ecbafed0778f4cd80dd46. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c73c991-a563-44b5-b5c8-12c3de08ef01.json and https://artists.proofprofile.net/proofs/artist/7c73c991-a563-44b5-b5c8-12c3de08ef01.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 0xd5c4b06d9fde3a34f8ac22f7b832c3eee0e09b43e3e337491a6069a54a9b42a4. 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/TCACP1659821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6049921f30fb15460b3bd7ed3483b4e87124a40fa34b3570c7c6d3c43cb2cb8. 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/QMBZ91645189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10b5d5a8923e13b31904c00de1efb94b0bac6ca20e10b440165bc5c8473c1e7. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/QMBZ91645190.
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 0xe5260c942e2f2fd229e82d2ca4d3cb52c4a0afcef173a721ce2c7406c176967b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CA5KR1579513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74e7f9b547261d5ecb39f40ef92b4d00ff6d2b94bb61b608a5463b85c42994d. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/SE5BU1946973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3793fabc52114f1258ac77a55f2d21f6b62659a131168604645f940f4ba9e307. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBKPL1951556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b66d24836bc8ba22d98f7508c25bba60931581233e094fccdf2ad3d1bf44865. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZGWX2103417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b6fe9196f84f4a32486fff2ec4c7a90725eaf74825c9bbd2cd9c525575c76f. 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/QZGWX2103418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22872add737ac38ec77850fbf8a4535904df7e474e9284d223d7d7142c9cb3b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:03:35Z), 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/QZGWX2103419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029f4d0ce1a02e24ea1bcb081906f3facf94714363e9a913c922feb08d68ca27. 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/DEH742163118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4bf0710afacb42bc30cd2a0c3a98873b291a8af773dc4496618eeab48c0ffe3. 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/DEH742163120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d9849472de507222ee6d1b4d4706e9092e9d797f7743421c428213fc93a930. 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/DEH742163122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f72b5e649e246ce90ee7a4f38c83cda773833a2190ee368a89aab9496b8167. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEH742163126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb882ca1f62f5ee013e146d402f57b241d378d51d23a50a0c894a2d14988b847. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEH742163128.
Crazy - Stephen Jusko & DJ Blacklow Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0713182bf95bddb2a8d301393ac65135c5af201f10a62fede55d7b568089f0. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEH742163131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f59171148f5beb6f79143e7ecb8714fdbcdd12e625d361b6e544dfeade7506. 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/SE6I32270766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65442c5ce591f251968a4c7443a194a6acdb9f2f15cb7e55a407273c6c27e33. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZPJ32332969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ad28fd9bb813633b758f8691df7d4e1595b01d4e012c938e08eb095568d65d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEH742522187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b815500a0f44dbeb1c1317e36028cada47005fdd72bd16e0b15e06cf3a19e33. 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/DEH742522188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f06249505decf80413eb312abbc4716fc0049c9c675791c55bcc37289009316. 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/UK6KW1900217.