250x250px|thumb|A late 18th century painting of Saptarishi and Manu from Jaipur, Rajasthan. In Indian religions, a rishi ( ) is an accomplished and enlightened person. They find mention in various
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 0xdc6fc6a4bb4ddbd505b3f8cbad52e7a399707fe8c30116501e3c6facd4569389. 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/70c75e76-1385-451b-a52f-4d91a7b9c6f8.json and https://artists.proofprofile.net/proofs/artist/70c75e76-1385-451b-a52f-4d91a7b9c6f8.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 0x3d5b8aaecb93624bd18e8ab26eb76777eef75bacaeb4227bef37172e6c8fc06d. 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/USLZJ2257250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9500eddacea838992c3d603bfc58a854e3058fd8f2c8fac63430377696189e3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZPLS2240114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1777dd1c46c246b6108f242846b8a36366a990293c94e5c7849979fb8c8a5d2. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:27:43Z), 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/QZHN42422973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184dd55dbffa6cb09f08c4b0729d1b58d3119963a3251892c54f88ebf0673dca. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZLBC2423645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2900000939ff48b610a1b90d63ba9d5d9371a5620c1e2fdc5017907315103514. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/QZLBC2423647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6166cd4f1fadee8c8dba26fc9decdba89f96c557199151918fe880027f190d37. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZLBC2423648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bbf03458800a13f3a967aafd259a2b20608ec625a06a825310f59faa653d2d. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:21:28Z), 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/QZLBC2423649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da4e514f304c2bf60d1331dc2de2f31802b371facc7187272a1b995614a7313. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZLBC2423650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03abfbd659404f86d552cb6c005619d47435fc8ca7b08cb6f420879f4ac53c88. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:35:29Z), 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/QZLBC2423651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa0b08e70814cdcfbe87dd0b73f844fa3a33c07391700ec8d5cefd023901864. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZLBC2423652.