Indica is classical Greek and Latin for "of India". Historical ethnographic accounts of India Indica (Arrian), Arrian's account of Nearchus' voyage from India Indica (Ctesias), a recording of the
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 0x88eb6fe050bb41ee48e81c4b3a2714a3166de7509e0f03f321c4e56703688637. 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/09df2602-16fa-47fe-aa85-25e24f9e90c5.json and https://artists.proofprofile.net/proofs/artist/09df2602-16fa-47fe-aa85-25e24f9e90c5.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 0x7fbd2cce4943511a8cdc3cf3cd0813dc8ef050bd7aad54dfd721156abeb4ec7d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FISMC0400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3170fd92d83ad60821fe4f0a9cd4ee431a71c9ba02966767d05d1e4d34a829. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FISMC0400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b81fff12d4e1c3f071d07ee7e950e4266f8bd748c01aa52b363c4f57b02856c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FISMC0400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0547cea385ab5b1f93ca6de22f298230ddc90ef5485b1d8631c9fc9054aca9a3. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/FISMC0400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137390d89424720085457a369e3ffa195639742f6ecf7a6372222f2f038976f3. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/FISMC0400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0328588d0323df9110bd5a91a1ea4cf4530c6526570bec47059fd8416ed09812. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/FISMC0500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3355b120570e8868002cd249457e1f4604873b7b3731f999eec4104f0f0aca94. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/FISMC0500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21a4089b3500ef52a1e2c4f19e9e4c812ad013e1b1b1b4a8f6366990fea8a66. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/FIBAR0700111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f57fe5bb4202bc995ee231bf1e2da29f9588260b9a346c9a9bb3d7d99e2f0dc. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FIBAR0700115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaddf3b31708797920b3e69fe495741444a49135d218663baae44b20fca67975. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FIBAR0800278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4166d7670d0a0b67c79ecb42740d4e84f02f960c14b221b04fc92008c35478. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FIBAR0800282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f0b0a16215b821c616511322a71d283cd6adb1b0db1c9c131e1b4f1d032be6. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/FIBAR0800284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137390d89424720085457a369e3ffa195639742f6ecf7a6372222f2f038976f3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FISMC0400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e4c5ddd5268342489c838d97454e8c6902e8f250c567b052f52f8903a68301. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/DED830900792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f330c49a3224501e3f7719bb00af89f8b03c1ba55bc190aa5b4f2a12f6cf348. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/DED830900793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c977cd539b7566e119d5507871d18b5b331b47b88553c94d7557a255c777f4b. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/DED830900796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4228f19229e1921b116727a9caabab60fa6fc98d1c72ce073b102b29bcd366b5. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/FIV2H2200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb150c2097c11d3551c7da2f137e8866edaa5c0708622a254e1dbca538f0979a3. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/FIV2H2300003.