Lo may refer to any of the following: Arts and entertainment Comic LO, a Japanese lolicon-focused erotic manga magazine Lo!, the third published nonfiction work of the author Charles Fort L.O., a f
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 0x1724ef42c1b7e668a5bf6e0d862bedf61720a6542207e9e1a3ea0da65d0aab11. 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/3b22e22d-0d65-4d6f-be2b-4c056b209163.json and https://artists.proofprofile.net/proofs/artist/3b22e22d-0d65-4d6f-be2b-4c056b209163.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 0x276655246888b54aa3e1843295b3f6a7aa7fb6288481d9866af192591870b011. 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/QZS672118066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6226b3e24e58a2bb340950fd10a19f74711d2274266995ab266ee9a1d850045. 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/GBKQU2322839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83ab54c01e90e5cd86db01747aa06823fbd73e6d6760688bb1bd5ebaa9e5c9a. 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/CH7812347477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70868a6f64584d1b9d4ff51f468e61364b9709a8d3ff55f37d57d929480d1870. 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/DEMA61905750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc064f0512352b0dd7ec7338973dac7f1ed0fd9c0dc752e0217ef81540b9fe7. 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/DEMA61903410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a038b3ae73eb0797d3db99e53ff87d59b1916789cfb9f6c4f75299870ec487. 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/NLBW52000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631307ca68103efd6e4f4a9e05fe36ae829b8a41f374053f29da09fc566d21d5. 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/QM4TW2253668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1186600480191566dc4d2bb57528edc2a52f08ed5df69c6de48426dfac6cc873. 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/NLT2H2200986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2228e5c590ecf0f1f329b985b340e75985ac07c6011f87b6a64bf9f56247c5ad. 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/DEYT72100626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7927797b2a38a1197ab278bc374c6cab383a04a6203d726c759b5084a4030e. 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/NLX3Y2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f6bd6d21bf4bb16188dc65b1fc896c12f93bc39f413762dcf71e795e2dddf2. 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/ATGU62000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687ad9d053ea04dee5e4e8745f5dda5cb0c39177a0542a39afac64ebff5c68e8. 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/ATGU62000196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccb5a3308fc9d1575f7f096bb56c6fe32a6d30d4fed4efe199f3356744b74f6. 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/CH7812371683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92fcb065171dd9848c909cabc5bc524b129c4a8c0326a6628b0ccbac7b41698. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CH7812371684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88acf3f5b8376bad8820efee3988106f0d01e5311e9d9faeff8a3d995cf461c9. 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/CH7812355960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a4e05d082c5ae9178ba3fda8e8cff05440f77b4debcc45cc96ce3ac7c5a6ae. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/CH7812355961.
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