The Nixons are an American alternative rock band formed in 1990. They found commercial success during the mid-1990s, releasing two albums through MCA Records in 1995–1997. The band is best known for t
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 0xd2cd98db159684939de1132f51b831b838b856bfde85c855909c955ebbdb93ac. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33cb6004-659b-42be-b1e4-41c75b84f2cc.json and https://artists.proofprofile.net/proofs/artist/33cb6004-659b-42be-b1e4-41c75b84f2cc.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 0xf6e47832d8b4feaf5ed655f8908c91a4b94bcad9feafb20e2b838b9616ada0ad. 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/USMC19444265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27ebeaa12b54bef6eb5a64d859c6f8aa05ebbd886a7b315b6c798039b7e770c. 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/USMC19444276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b99b53192a09dea1e112d6d7a6d3e921e411a7a240911daccc5597e031f6d5. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USMC19444274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0091b28518af940064fd616de1019b6e606acb1af30b78f1132d39926c0812b3. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/USMC19444264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0389a53a4b65d6bfdf9cba6ae6bb65cb0c0eee05252004a28390d69ad09ef751. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/USMC19444275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3278551e76fb183a307807830717b5f316e705159014c1bbac47ae395c92a2a1. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/USMC19444277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b04763e1d682fd2524531b8079dc71eada81ff97ff792c3a38dabfcdec535aa. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USMC19444278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0da85ca76737bfd79d8930bfbc3b8d646f6a12b52d0cfb6e8b28663a1fc50f7. 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/USMC19444263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919076f24ae1eb973f64dafffaa972f084c06deacf4ea0afe14a37572a93a852. 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/USMC19752900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c3d05695dfa5eb22f1aecf4d84c9244dc34d4c6b51cf3cd254fade3d1641da. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:22:41Z), 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/USA2P2015461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c3d05695dfa5eb22f1aecf4d84c9244dc34d4c6b51cf3cd254fade3d1641da. 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/USA2P2015461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b84fc7a81b4e1b644aa901666857c1558d551e5183d24f8599f4cba45a2c60e. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/USDY41772586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39a532517adc6d6a6a75a3cef6711e243fd4e7639ef583f9a95bdc2c4c71758. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USA2P2017685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95af94227889fb53c51cd50a653466a444f8e48ff61b2a64db8dfe7f8703d945. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USME32400471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95af94227889fb53c51cd50a653466a444f8e48ff61b2a64db8dfe7f8703d945. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USME32400471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8e3949a7066a47d6d175c0e89d8125553fdf64a959c2dbfa2907bea99c3c96. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USME32400473.