Usha may refer to: Geography Usha (ancient city), an archaeological site in western part of Galilee, Israel Usha, Israel, a modern kibbutz Usha, Purba Bardhaman, a village in India Personal name Myt
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 0xc7a40534beefbf73fe823eb1285d19bc12afdcc2c47968ee2116720953ec2d39. 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/740a6b6d-17da-4894-8f7b-aae981c29300.json and https://artists.proofprofile.net/proofs/artist/740a6b6d-17da-4894-8f7b-aae981c29300.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 0x006c2b26c07b9b381dcbc1c8987c4a4645314e420fff82d10b847c20fbf7157d. 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/INA090930244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68594f5271a62470f9770f16795f624c1563b22eb670c5e4498290d2917588aa. 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/INA090811729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebbc387ab4635c6c3672c62a93d003a447a91e22c5896431f372b28bf1e01c2. 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/INA090811720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aab9bb0b48453955c04f7772bbaad132b75c13bb6bedfefa51a9b04b2c4baea. 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/INA090932132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89a784644f138fb0cb6949c9d98c975a53f4d42f40ef928ed074c28357a42e1. 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/INA090811726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe162b2b8ae71159afd29fbb7f781c1e6638db4134d88386b71dd6cb3d896a621. 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/INA090811721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb775b44710d0b92da1bd53d7fd0fe0614011112019719602759f65c2e04b825. 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/INA090811722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9a48100497fc976a5d181acbff1f75bcc5831bc1ff4e0f12fb04ee5e74cd83. 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/INA090811725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b90f06f33378fb8938b70679b41e1722179b1db553699369eb5ff373b8fc50. 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/INA090811723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0341a2aee920eae9257be2931957617dcc32189d82643453bde9a941d28c73. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/INA091101120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106540a051547d47f8cf59ef3288009ba8d00db6c6b76b68681a96f6ab9c405f. 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/INA090209389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afb8563533678dbbb12415bc75e32a226ae526cde29f57f6d76646057b76944. 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/INA090309666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488937b7ff964851c37f849f6ad86a7207cb8596799b27eacf904044c367fc32. 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/INA090309668.