Losi may refer to: Losi (mythology), a Polynesian mythological figure Losi Harford (born 1973), New Zealand cricketer Team Losi, a manufacturer of radio controlled models Giacomo Losi (1935-2024)
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 0x4ce75a4ebffced1179efeed36e02ac5c7935fcb77df6b99fba8a5990678ea592. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b87d38e-f5e7-43ae-acb9-69c31932a1c8.json and https://artists.proofprofile.net/proofs/artist/8b87d38e-f5e7-43ae-acb9-69c31932a1c8.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 0xe9b0045d341b126c4fd64d3e8d237f69cc384bb1497066718514b09a25fb58a9. 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/NLRD51632244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23818db06c503e869f56841c444ced19d05b1fb813b5655714a89f7b17d95866. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/NLRD51632242.
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 0x5ba7f366965d71af52687f13f3ee1b869bc7c6ed7fb2824b7696e24e8d325864. 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/GBSMU2560130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b5ca5eee0d325419acb682f2af8e43d5429de625d78d71e41504269ee9e9d4. 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/NLRD51632067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2a3d5fe19abc00ccc70f46b145470f6e06090c6e6ed83f326910ac1029dda4. 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/NLRD51632069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2c0f5392090a4c81aae3bbe8bf132b6b697fcc0c6580320da4dfeaf19a0683. 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/NLRD51632071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9eb08d9fcf1fe04bb7f6dca8e4c7c65c381e7991c79ef4c187cc9a666c2d0d8. 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/NLRD51632072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d2b0ded75ec1668af60b9dd65df0614cdab4997ec2ad41a838726b7756c57b. 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/NLRD51632073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47858ca0fc80a9edd7b51cc991511151162f8b97c99e45b05d6efbc569b39a9b. 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/NLRD51632074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376f329b4fd5c9ee054f5b6d0ab7b81a847f27a883889da08ddd6a115529bb34. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLRD51632075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef5c31498f4c40a47742f1a8240e9aae35767fa309ebb7e5c1df3805bf17331. 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/NLRD51632076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fa8502e101cb80b03a0062af1431a88bc61844660f9073ed0a33bea84d3219. 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/NLRD51632077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61ad41227486c6feac556b959e7dd02fdc667a559cc47260f66944979ad3730. 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/NLRD51632079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d662403b6e3de7bacdec0ec4ed547ca38785768d6ae89846d4656fa22ee67b. 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/NLRD51632082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e143ddeeb9a6af11ed27f920ea21011ca22a420b0337a51d9a993104ec66289. 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/NLRD51632083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b301fce1619afdf7a35a827ae0f7e96de249f8e52aa96ccfe1fb919b6230e33. 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/NLRD51632084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02ea15aa722541806fb916df96da82f8bb5fabcdfa8d5034d34b758dd54702f. 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/NLRD51632086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ab7573bc84959d17ddd5da8d6db782176f64e43f5b46431060b6c3547258fc. 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/NLRD51632087.