Janna (c. 13th century CE) was a prominent Kannada poet in medieval Karnataka, India. He is widely regarded as one of the important Jain poets of the Hoysala period, known for his moral seriousness, p
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 0x8f6ac02719122a91bf3d4135fcd230286e22573b82af9389ba465c50536669d5. 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/3db7004b-7439-4bd1-afcb-6aecc0d0a975.json and https://artists.proofprofile.net/proofs/artist/3db7004b-7439-4bd1-afcb-6aecc0d0a975.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 0xef26a50382c1cc1f881ede57cfc9c69c6b7235d74cd1091eeba406418f225bd0. 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/FIUM71400312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5524c39a386a2dd8cf3b0a16431b9adb3587900fc02f1478217cfba4f2e91d3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FIUM71400314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab55d948d91eff3a2f43940643f8a0e94f68e182713de5f8dd2e66fd5a18285c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FIUM71400108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68373be2d56ca9f84bb8dd900a62fd0927f93ef494b05510f94cd24ea8ded90. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FIUM71400315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a5516de5f6d06782bbd38a746b00dea5f8bd0c5627d5493ea53c8c9ffe7f3c. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/FIUM71500227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4d48fca9099256d30494a04cda69c95517aa1501a7e0943c13c7e081b6a635. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FIUM71600118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a5ec2118a5365186094b579c8860b0dda0f2774696fcc2f426e4f94a7286be. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/FIUM71601075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f5e5dd4d006d8f1398942697fab7263319ae51af2db07d5ec60cc130d3c765. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FIUM71700207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d88903841069509c2d01cb2e26630632a3489d6a9918d864854aefb3cefe18. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/FIUM71700301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20ac978fd5811f6d0386292d324bc6ea3a4bf2cfdc466cc25f9cbd448df5f52. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FIUM71800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592e9cfd88f077d979f6a586a259769d933742e1c716d223e847e3ec4d63beb6. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FIUM71800490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de171a5d3a66afdc438aa42c8723759c908e6fbb3a6c81c02efdf80b2fc24d7. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/FIUM72200384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b376e13e89f23befd078c4be0c7e9634e626438e60652ddfbdd71219a5de5a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FIUM72200430.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ee8cbf040a54c5096a4aef55c5edd4b78c0548e36144475b1124002815a834. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FIUM72300362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f01f66665b01deac8fa91d8fd30817d8f27d829e5c6d9839ad2a2ece26fc855. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:46:52Z), 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/FIUM72300394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4253f2d74b47038df5585953d5189f1e05008e79bace849282a250221ef22a6d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FIUM72400280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9932dc17ce8938e425cb5ac88ac0028f75f7d935482ffd51582d1c90a0ef09. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FIUM72400282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf7d992fd814c7aa16214776443158f08949d27a13dd0e51b99f8d777a9a3b3. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/FIUM72400285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb344a269fa98721a87792cea4e0623a0d9955912ac06fa328180ae474d1d11. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FIEFE0800335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10674b593ab783896521d622af655cc8e968d3783c15e7941f3941d00e82017d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FIUM71400317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef740d0b6324691f16119fb4d234629f852bbb62fa90d36e774fb2d1460bac96. 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/FIUM71700443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635ca8e97415c5dd5a633fa0911818228a1bdf7fe211824977ac2dfe9733f43c. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/FIEFE0900261.
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