Foxtail or fox tail may refer to: Plants Foxtail (diaspore), the dry spikelet or spikelet cluster of some grasses Alopecurus, foxtail grasses - the scientific name literally means "fox tail" Bromu
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 0x316b5b928215b0b67cb883a904190b58369d0cfc3b6f3ec5f50075935d494ea9. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e1b0861-92e5-44d2-b721-329ad3ca4fca.json and https://artists.proofprofile.net/proofs/artist/4e1b0861-92e5-44d2-b721-329ad3ca4fca.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 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 0x2aa382bdf5ff0873fe63c35fe69a899135293252dcc2ea11a27b399067443865. 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/GBRKQ2214871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca27ff4fe697135fbf27123794dd7473fd6d5ac9fa1875e355a1cd16601123b. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBRKQ2216500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5756f4a0821b2095858de0fbefdeadd062d80aeda929082180011d5535809edb. 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/GBRKQ2216515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4490afe5f7bbe7c86404c610bacc55e18777cd6e5859e62c22aceca5f7ec50. 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/GBRKQ2216540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf5981ea31354534a5ed5bcbdf456393e3bf202547feb6f8193415c000f8820. 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/GBRKQ2216577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d56fa91513146e6c66966bbbc12fe5fb2acbd11f36d07cf80067d493ecd7ede. 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/GBRKQ2216589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa778d5e68f0439ece08d6fdf9ac9c735af1956ec078c2aa2b353fe6f78cc56d. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBRKQ2216683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa43700af3d4718cfe794a413cc0015b2537b47313cc073b299bd5193a08f5f. 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/GBRKQ2216691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31381183f178fec2b1fce80f06c918fa90c135fa34b9ab7aa887ec5cc78adc81. 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/GBRKQ2216701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224aefb64f2b5c6be5430742942059af63ee2503f3868294e8a57f387b1be910. 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/GBRKQ2216739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172aae47735dbd32f57361c62333a3f93db0f15ad94ae17cc3c5655f112c9c30. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBRKQ2217127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a4a55afeecace2382d8f59403b3a7e680c911a16095b8345f36eb9dce01377. 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/GBRKQ2217130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9a806ae5f4e01bb3d68712ad7c3d08a7ba8a91a088424be9e17735da63b545. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GBRKQ2217131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72017451702cf2368ac5b8052658241e90af897fe9e84c3318ac7e6351a97e8. 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/GBRKQ2217133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb8574e3305caac2e841c7fa9f58645fe7eaf28dca6a5cc31c8178c8c005e81. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/GBRKQ2217134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9e17bef75b43f53da1015f18d167b0fb53611b29d4ca4de04535d0dd5c1acb. 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/GBRKQ2217135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1912a08054e567fff06e04e8c5642b60a3b7474a87c01b6b857a03ff1720dda3. 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/GBRKQ2217136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e324b20a1fe5cfee210517d5ddd207da80f984b6753cd68d27ee1c57d59cb96. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/GBRKQ2217147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe55b30bf76c9f1d542beab430c4295e4fb65cd76745c0030887cda55125982. 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/GBRKQ2217138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7161688634c97fdaac7631bc841f65acafb084ac1b013ca62ec07c3965463c15. 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/GBRKQ2217141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7330737a5f31a6074947cbdcea9df5de4ef1de716cc4c884eff451a96dd2683b. 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/GBRKQ2217145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bfc3d9ea92af0f812184d90378a6fe7b80b6874110891e283f248fcf522168. 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/GBRKQ2217151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6a15e432379ceb8edd79a0024093b55f24910bd4d921fed577e11982e29f3d. 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/GBRKQ2217161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b879ad98620297106f9d36f610bbc2cd6b7341e05072738f42d2dd64296d38. 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/QZNWX2037671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b94a154a10cd541a4d9f81fd639563cc8c5b325eb16615c970308919f9685de. 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/QZNWX2037678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1e6986df3d7561b937bcd376f8d49e32ddd6acce6f691ab96d7f186d7c528b. 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/QZNWX2037681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fdf799c1db559c82fd646daa1d8746fd01e8eabe067e93188fefacb073e6123. 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/QZ5FN2370230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851601b583259917475d574f7c6a5b5ba2d78814ccfe5e90a63a9728fcfc495c. 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/USLZJ1957159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b186b1683fbbc3850879a5e09f3391c0e0221bb18179bb1b9f8bc3aa72b249. 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/USLZJ1957160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2106dd0207da5f9ebdcfa83c465a882046cd095c8f7267c0bc76b09cffb4d49. 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/USLZJ1957161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63832f17c012f99447bed448f903bb19fa4a64c1a8b68ddb388d6bbc57cd9898. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/USLZJ1957162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa26c23f20593f63ff1aaff7c48ac332f48b59f6440ebdbfbc4a1230302c60c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USLZJ1957164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be2fa96357a6bcdb1cfa5e5ff377e85e5df6e8f7a3a33f897298d31f26346de. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/UST8K1736392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f123de4c2686c069b111eefb359cdea19adda73bf2bdcef8c5b3185b5f0402. 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/UST8K1736393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f038e37bd2a28c47f6ce534ed0879e5d623b245e596d46073269ea0af1bbcf. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/UST8K1736394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f8d2260cc656002d6d3f275aa88d7c6f80d10b2b7104b0329ce8cb8543c3fc. 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/QM2PV1730345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4232bd93662cdd9afbc45c5026bd0c6b06e2cc137e1cd145bec2acfe57a168d9. 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/USLZJ1877818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bed467846842b17b6052cafe4dcca1debf67fd2e9033fb3a23666d0bd6b3a4f. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/USLZJ1877786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2231b7cc63acc92c412220116814567c3bdb788815e4eec3507fbd06cbe767. 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/USLZJ1877787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e2159153e1987f3b2e3256fb622151d20f46cf3e00ef143dea279a25e382f4. 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/QZ5FN2370229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54459a82cfc89b0bd995c877a4b9132d5df1974306baee42f59fdbc0d9b2bc3e. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZ5FN2373363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abc6a92b3b53f0e3db20bd5ee91d1e101da40d2274fa1db3933e4183663d034. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QM2PV1816082.