LV, Lv or lv may refer to: Arts and entertainment Experience level or Level (video gaming), in video games and/or role-playing games LV (album), a live EP by the rock band Chickenfoot Businesses a
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 0x7fd4b1f217bb147cccab34bb46cd883f98489a7c4c3c8eab5e2ce68830198797. 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/54670369-2ca7-459e-b37c-6cbbdf506add.json and https://artists.proofprofile.net/proofs/artist/54670369-2ca7-459e-b37c-6cbbdf506add.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 0x77133c01ccfc9214f2db4af5709c0d8ac3db5bd30afeddaee0066ba7cdd0c095. 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/UK2X22400479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03575bffa10b901b57d18b31b5049df7cc277043e90efe1b604d609d178b086. 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/NLE802400562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d39e2f22dd69c1561d5a26765e73d0557cffe3bcdb8c115411aa517968ea918. 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/UK2X22400476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe503230ab9a05b4d86ad8d537834a96cacc380e94e7a35e71696774f69e9084a. 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/UK2X22400477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9559ecc58a47537d872d20eecb2b88a4687e7e4e2169f8e49db838f1f5cb18de. 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/GX38U2480194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0352e1791275fe59301dca9a90dc55e4539678675ae5d599001c7720fe68c37c. 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/NL9KQ2390393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e97f4a499eb3975ae71c5f000bfba09d370c144e4d4ad58201f213939b2877. 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/NLE802400132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba72eff2eb7bd1cddbff3345f7f087fb00acd522f4ae04b5e97e648e7683e3c7. 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/NL2QC2101401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed757dd472a7588d19b3565d5cd2cbe8ba0ba8da22f4b49670a5f3e460271a5a. 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/NL2QC2101373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2125615f55d049e6fc00d983ecc19501629c9f9d8c550a6f94febbd2cb335c57. 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/NL6WK2400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ae0658372f4e1d584280e7fbba6c8ae51188b3483772476a3acc463839e315. 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/QZTBD2367718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30866848e77880a0d7078cecdd855decbd558a5bde838d1431e5d6d63c36503e. 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/QZTL92327834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704aa37c0499f0f7900a60da4c87222332a33c002ca50c2afe5612603fcdf345. 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/QZHNA2397255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02c603881ec67ed8d8f61c8154c6774f92fe5f959cb31ebf3366e372c7230b6. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:51:35Z), 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/QZHNA2206854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8627d36dc3e01e4bce0ea0fb675406badf6864cd806fc0dc7a231d2195a5855f. 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/ATEK02277184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66fa92d399b18277bf0297dd8391c35bc9d86fed5d472e1cdbe4f8c6b9dcab58. 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/GBLV62104212.
Nothing But... Pure House Music, Vol. 11