Sankara can refer to: People Adi Shankara (788–820), Hindu philosopher credited with reviving Hinduism Danladi Abdullahi Sankara (born 1954), Nigerian politician and senator Mariam Sankara (born 1
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 0x6d1e92d84429a1cf6ba50e5ad674f39139e790ca4a0f3833b0a0d7220655703d. Chain 2 (Bitcoin): anchored in block 953719 (2026-06-15T01:07:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/88c5f6d5-dd49-48e0-9c38-5a84f3704e15.json and https://artists.proofprofile.net/proofs/artist/88c5f6d5-dd49-48e0-9c38-5a84f3704e15.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 0xe3733c3308ef0b2b9ca7e2062ca098612d7a542e524bb6c8fe651c5119621c29. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCJPJ1905889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3733c3308ef0b2b9ca7e2062ca098612d7a542e524bb6c8fe651c5119621c29. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCJPJ1905889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc701b2387c0a53d560ba4252ab226df2f688fe1cc649fe277243039af18b67c2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPB601889548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b773928b2fff6a84bc0be567746bdd07bb6e850c54b4e94745f8af93721419. 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/JPB601894628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458a363d0517669abc9d3db3a55497662be7a14101d184457195c0c448da8c71. 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/JPB602054252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f30504bf57e40e39bec6cbb009cac9fb5de5166c2f6caa10e648641ba162488. 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/JPB602091846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09f255dc069e946cd8b2fe815e662b377a5ad21c967460d2f14ac26fd59a1ec. 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/JPB602156761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21988abf13c09c6485eb6284d36c6704d54b6f46db0a5af2a630ece097cd767f. 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/JPB602170081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecd7c61f7e282f31e34209e3cc3571da294c82bf40e66e4fa4c8a60e4dcc877. 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/JPPO02001911.