The Cro-Mags are an American hardcore punk band from New York City. They have released six studio albums. They were among the first bands to fuse hardcore punk with thrash metal. They were also a prot
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 0x7991583e9c0feb7a97c4b9e6eab87d40d61504b82fbe36bd412bd831f9bc05f4. 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/eb9d2c91-3d54-4ec3-b251-79f0fe3cb832.json and https://artists.proofprofile.net/proofs/artist/eb9d2c91-3d54-4ec3-b251-79f0fe3cb832.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 0x5c3f578beeebe50d6b4f2a0e620f8f66452625f33ad142e4d80412cae3c55b31. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA370333766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4831f45a10afa97cd50c9db1bd5c6e99df982083d82c86d0a8f3bfcf6d880b. 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/USA370333768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565f3c62737740411e294f0f30f8b0cc3d740c141db72d9db13ef9aa0eb715e8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA370333770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f57a9de99f94dbb5ed3cee334dd468a1c4c11234ac44b98a68ed403e88921c. 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/USA370333771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bb455fcd2f7554a5a51cc979d31a4779263aeedd1c73f74769abdf67f2b09f. 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/USA370333772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f14464c383c6da629bb85250c23ce680ec76ef02bb3fbe18fab62cebf1a1c76. 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/USA370333776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589cdfba93ace0ab2d766e8a325a3a5936013fcbf016fb60659d444ba683642d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZKQE2000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8334e8cef372369999119207a36c994d3b0e2ebfbe4e42cba4eba089d999834b. 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/QZKQE2000202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c73b92a4b54f1a9171fa3dc2c53cd2228479ef68659c2ae6d39bc7fc8bb4d05. 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/QZKQE2000204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0017355af825a7000892a24a34d9a772b64d04972671c5c06720f1fa705dee. 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/US4E40503001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512b87cd0296e4f7cc8a853cf8d6e7e5002bc3525b2fbf786b587cabe2e359e1. 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/US4E40503002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2149258990641642a6bbe8fb921f7df7c61e8401140e7b4a4d8ee7ac9bbba46. 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/US4E40503003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc004bd57943936ffb8ccd9a61903c026b47bdf4fe0fbb4c0163c4e9a41d60d96. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US4E40503004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ecef7444093cb06b3f6754226cca26504dc75dffaeb8560b608c0a64ae4c4b1. 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/QZFZ41988651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d572cc922e26a6ff77f7f5437f0a5b41ea55842925acba78401ff0f408051b. 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/QZFZ41988652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4390be5fae62b4da63183435c491314008bfb7ce591b5d1041e08ee2d1a22fa5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZFZ41988653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefae61d40e7beb1c1b04064b939a378d79fa3c2b12bbed8d4d31191748a56de1. 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/QZFZ41988654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5d1ff5b8459301a1a92dd1b2bba0159b21211a54c36d6a1a79e2d2b86fde54. 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/QZFZ41988655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c99713205893a2f15c246f8365f227666cb7bbc1442822e0521e4baa0f51c5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZFZ41988658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675418e4a70edd022c50c57a69c5fdfc9ae9215a3d2022dd247c9fc267efe209. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMBZ92025041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685fb6406065f420695bb6e48110dbb67504e3688493a7c798dd1c52f4acf302. 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/QMBZ92025042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26887d4d1cdc9804f9a823163629dd292a0fb47634d545be251e39f74ccb3bdc. 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/QMBZ92025043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd5770ccd87189460d6911b902085a7438ebe0ce55da844c6c73689c495f053. 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/QMBZ92025044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0443f5558037d3233b939912c1abea8e3b967e515f9030049bdfafdb21f92d42. 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/QMBZ92025045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a46678628b09bd5e84fc2fcc0521910c8fce8a73ff47743d8b351d1f03f54e. 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/QMBZ92025046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194f1d79fde6c0d0cad4baeb8d576f36de07582b21d14a55a2ee5ed166f80c18. 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/QMBZ92025047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1528dfa1529e9294375376d371fb4374cedb5e814eea6ee81bf0103e08c64cc. 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/QMBZ92025048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c799b4e53cde8c6cfda98cdc3feee918b2c68a95d0d6487a4380bda07e0920. 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/QMBZ92025049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d072bd66bf30b22a33a073374d859ec55933d44a771f7f01e8c61b031452d2b. 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/QMBZ92025050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61ec420e547f06d3dad8bf2fa89d3949ad14f360f0e7d6a631dc5a50de3619b. 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/QMBZ92025051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca21e0706e1f012421aaea0f39d6373b6e5d5f6e8eb9f42630eaddefd09dbe6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMBZ92025052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2292d6a00e6c10a5def293348763792f5470ea38b5f1697d3ad5296fee381ac9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMBZ92025053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda9cea85acb6680667511cb4a03d6156ed29d0ad1f71a411a7611578637fa9c. 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/QMBZ92025054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5282ab8957503624473ca6dd72b550d211f74875323f512b4fdc843fc52c465. 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/QMBZ92025055.