The Nazz was an American rock band formed in Philadelphia in 1967. The group was founded by guitarist and main songwriter Todd Rundgren and bassist Carson Van Osten. Drummer Thom Mooney and vocalist/k
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 0xbad6333d1d1a2afff1ae78849f0c0abf2b548fe2ee000310dba2813e4070116f. 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/de2a705b-6127-4315-93cf-24534a588cbe.json and https://artists.proofprofile.net/proofs/artist/de2a705b-6127-4315-93cf-24534a588cbe.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 0x3be3aaa96b17936992cca7e41ca423fd8efd96c4cef74100fbae9b0e838e7eb6. 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/QZFZ32041534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179e873b1b9fab14bcbd5a0d1be574d0a3e03033450e6a2005b759115320ff65. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZFZ32005157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc00833f79766438e9b65bf6dafc0b55e2f215d608f3334157a0401c421ee99c. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:32:15Z), 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/QZK6F2001331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac479daf8353ff657448f355ae5c52d2f3ea3e05f6acf493e303aaa428cdac43. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRX282110318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff6086a22a7a617de3ee7f811d5387fca5654ace2d04b6bb6c2be2373167d95. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRX282138640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fb0124456b66a3852670356eee3ca517f43af2e1e9c7ff89f02fa93c5e3f6a. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T05:47:25Z), 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/FR10S2200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc190560a9778e48a36accf2050f7eddbabb6648d47871196d48495f1b83d960. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR10S2280626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35282c67a680b4b7e3edade26dd5c080534c7fd6e381a34b20270a4ed4ddc69d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRX202266306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065a5272df958dd1cdfdc573d8e77423dafd71ace8ff2e7c3afe99034abd50d7. 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/FR10S2371758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353078b4bbb3b5b154ac8670f07712da14754711e735bbe581ed250c4156c3cc. 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/QMDA72337978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0339ba4fe8ed34d9ae02f8cf01b36401d36a3602984573d20306b69666c5002. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/QM4TX2404433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf533bbc9b8839fe1ff64a2dd01165023839c6b11e500b02d51e8dd8458cf7f4c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QM4TX2459710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b22ab5c1d7863382eb8014ac470e131e6d6138ad2c1973673c92d6b1cec497a. 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/QMFME2372861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefade60b034f70223d7a234922a0be128abe5f4abf0d99e8b3af71fea7c2d4e. 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/TCAGG2270385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefc924c8112c892f4d5654ff1d4506fe7a0777866d7699d3b34b5efd2637f4e. 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/INSK92300307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec4fa88475d02dc2f38899101d70262ced29d913991e11107166a6d0bc86212. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INE182220206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36be5a0efe97da1dcc24c693613fd5f7d589e1ec774e1a13de6fdeec65572035. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INE182220216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a394560c5b8f6589e71af027156bf5e8dba028f3631060d9e9cc288f226aaf. 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/INE182308356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668889c12c56903231988d208009a841eb5df4cca8b28414a17441d44f68e409. 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/INH412212566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa20b96c60d66bcc6a0491b0d8f09b969aa5a876f591fe7988c850e324e59e89. 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/INH412213336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6faf92a16b420a795ee2bfc9b44e480970b9a8f1cd7bf51e42dfbff1d0c52ab. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZ5FN2419792.