Conventus is a genus of freshwater bivalves in the family Sphaeriidae. Species in this genus are known from Europe, North America, and South Asia, including Arctic regions. Taxonomy and history Conve
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 0x9251bb0ee2ca23a2a2b57bbcf4ecb9e31c8345a5d50ac7a573331b32c3ae76ab. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9bf72bf-e4cf-40bb-8523-7cad32af9734.json and https://artists.proofprofile.net/proofs/artist/d9bf72bf-e4cf-40bb-8523-7cad32af9734.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 0xa8daed7a6b67094afcbe9169719df6c9240e768b52f3ca8cc3ae81478045e329. 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/GBLLH0916201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f75dce82101ec970cb9f74fd1871377d98e6fd248b75e856e420fb6fad3cbd. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/GBLLH0916202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18dab6de011d25f7d4f9ba03ece7bd72f5a4692ebe654ccfb04d4ff45e9730df. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GBLLH0916203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1377b75c100a9b26185276f180076a3d9793e8f53b93d73139683701f6923fc3. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBLLH0916204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50771b9196cac98ab4e1ecef8a3beb5b55c98f1ff21b67ae98e0bcfe8212bbfb. 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/GBLLH0916205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4353239afc9e821c679417d3711221fbd794ea911ef44153774444f63b2b4fe. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBLLH0916206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bd8376d1b6a582862e6367611ad62e53365bdb13487f9ac23c700abe98ede9. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBLLH0916207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38f1807bc2917f43100dda178673088ee2e788170448dfaf48ed3cc0c262151. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/GBLLH0916208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d542e72188c6bbef9fe6d4d981f71db7a243ebafc371502aa156eb4235319a. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBLLH0916209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa3761877f11c181f239a245b96d86e300d4ce350e883b046cf4099ca56decd. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBLLH0916210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44eff5163716c1727b5c8feb0a5e6fbf005a5881bcda75af2fb862a1b8bf1519. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBLLH0916211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc10e35dad581805d918f4609e1a3679a9d1467ac801cbc52034bf1ff145fa0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBLLH0916215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3249b773db3664e6272e9f4ba63bea9350ac533f853c866df062b36f06590fb8. 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/GBLLH1230404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985f9fc7c055d63b03a2ea1e7afe7dafa638188838396a3352649ce04f4c7c50. 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/GBLLH1230409.