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 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 0xb9de06c0e6d7569418453998983f6ca199f2cbd32341c8c8c5393de2bb582df4. 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/c70fdd72-c33f-4534-bcfb-e09988b23dd5.json and https://artists.proofprofile.net/proofs/artist/c70fdd72-c33f-4534-bcfb-e09988b23dd5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
G-Unit Radio 10: 2050 Before The Massacre
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 0x309a6dad62a499234abc3e54756310f9c5db8ea1d9b5822b379907726decc4e7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US38L0609767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1de5984362320054627c0a7963293697e9046354fbc645f473d75ea1a317f29. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/US38L0609768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc954593d17ec0ddac054ff7f1dd6d56613575c776c98c103e57a3ed9cddafd. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/US38L0609769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7032b77fd5d7710b683293abe38d2c62e62ee23433c3a51a27cc2235d5bc5e8. 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/US38L0609772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90d908c76c01f796e84874a6ff4123a0f3578e70aba4c6d8448ab2fe320e8fb. 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/US38L0609773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc334e4fe13a1494e4592bf140d464e56793cab8f924b944024498036be212f6c. 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/US38L0609975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9f9d4990b2a4eda591e544747b4321383197dd89ba64148dd1997d9f01f640. 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/US38L0609978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01e3fb196bf313350bc2d0c43dad3df15d3a3fe625b541ae4fd61fdc073c404. 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/US38L0609980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4b8b1360468e853c745b51cf5f7f63de64ed3e919f1f3d7870d88efb36741f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US38L0609982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e096780e911f3cf8d951fc49188dbe55fd4521e1c320f1b26c1c9e564acc42a. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/US38L0609983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1d23b7d8db21e610a0eb418e6f7fc1090bf71714d94310de4e2c4e818dcfac. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US38L0609986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e539fbf31c105e294af49e5444e0c62196461729feb4cf10bab15424f5625a3. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:57:03Z), 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/US38L0609987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fac71b4da8df7c83a51734ca077d4f30944a0a991cd8d68ca8cdf5d678da472. 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/US38L0609988.
G-Unit Radio 13: Return Of The Mixtape Millionaire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa48e8810646bde1753419cece185640e3e923e6557054214c62fd5d9ccc138. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:43:00Z), 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/US38L0609888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7b42c0cd90815270bb608d5c3e4c6af99d3faadb4f430d13f78198c17241a9. 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/US38L0609892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ddaac1e93c803f0413e6a941643eee449703613ce19b4963fca166fb9b6054. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/US38L0609896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3faf9bf704ee9a9f6dc73b7ccb82089ba5479da8a9d931763d2e4cd5ce4bf4. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/US38L0609898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0237439bc90d25bb60088df35a31dae47cb3d0e0b0e15ba11ccfba046e8bec. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/US38L0609899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4117d51f02d84b4c2e9234bc4ba4bee8bff29102676d9275d8d13d249bc0d49c. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/US38L0609903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65172f2c863b13df796fa855ba3e3d87d1f33d7453cd00d4dcb351f402b50528. 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/US38L0609905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8074494fb7acdbc6405b010caa3013b1851cc47a125d1b320863a768428324d. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/US38L0609910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9865e910665c549efee46d2d05c5c2e9643bd1995328837b8ed4dbf99644d7fd. 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/US38L0609819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad98edd609c5f412b867524b8f05899e7deff39a4a7f47c4920ae339d448e563. 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/US38L0609820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ce0b39e92547c03a33f5ee2b53e1b1fe0de23ca290990e37aff8228a9cb56f. 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/US38L0609821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fac820507843b644dbe8eba82e0a1355e704b8f8dc73d1749aae62c077a5fd. 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/US38L0609822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6f13ea54ae3459eace7a302b6484ce3f20b8002db2d06eb2a1d06ecce79638. 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/US38L0609823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7f331a477461fc226d139463b4dcfeba0a18f5bae81b6021f8fcc5cb1e1365. 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/US38L0609824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09489cb469e68464fbc17244d0a9a0b719350e61dafe8af977c844386dedcc5e. 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/US38L0609825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf204476af667ca59781c24ad66321c8c895d2fbcc6bc273e81d705f8b5d1cc86. 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/US38L0609826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21fc34f410b3d353d897a29481b78cf8b7a9d4ebe795f86682941a51f7c9aaf. 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/US38L0609827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c575f527db870e5516ed1613300d3ae513d09ccb1dd38a665ad8e6cd947b9bc. 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/US38L0609828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b9f42b35367204c8ccd36a0aec91eb5962135e915634a9e73e9f0d16811ce5. 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/US38L0609829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40119310c19497aa2b575720c501ecee97e2e90f1f0253f061719e83004570ca. 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/US38L0609830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa686f01519ba2c72831de23da0f007710e25361a81427ef38e35bb3a10b04466. 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/US38L0609831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad47b1fe34274b78540359a99ae09bffb72f7154648787bd8c55c31861120a9a. 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/US38L0609832.