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 0x8753ad157931473cc78358589fe8776e2855a15097246a8adc6888ac6201b5df. 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/36646497-ff6a-41cf-98d6-57e93f1bee94.json and https://artists.proofprofile.net/proofs/artist/36646497-ff6a-41cf-98d6-57e93f1bee94.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 0xec8a219c0ebcdafa92e7b4ab44775c988b9a52cceb8bf33cd1bf54db7f5c93d9. 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/INS180904782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac7a24b135bfedf8a6b2f9e7cab35f48d6cd14e7b091fc0ae7465bbd1f1ed06. 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/INS180904783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb975d5d95105b7952e945ef1d0ba82ea221bbd9c0620f53ba0b48acf11dee87b. 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/INS180904784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00a17e0a4bac5a0a367a0f7844bdde1264998e33cdf49e8b77c4ab7f20bec8c. 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/INS180904785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf587c669667e32bc2fd73040ad82df07911bc8ab699876e84c2bb8df83228e9. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/INS180904787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350f9872475ce556b155e72d5bc2c07e30dfc66955b43f52338e592fd4928c0b. 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/INS180904788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbda988b4895280978e9ff99f2672dc1df47938d5f26b6cbcac630c4afee9feb. 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/INS180904789.
Jyota Wali Maiya Teri Sada Hi Jai - Navratri Special Devi Bhajans
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91037aea5cd408abf38db91a8aa9fb13652a6dcebaa69f7ad3c0da1251c81b16. 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/INH102500583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff4e2cdad65b7616775074160cfa30f0177f2ce3ef48e917cb04fb3e42eab4d. 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/INH102502009.
Hua - Hua Janam Kanha Ka (From "Kanhaiya Naam Hai Tera")
Krishna Janmashtami Special Bhajans Vol-7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d86992266c4a27fb8531986182d427efc1f61c6cdb3bea191d7093391f7840. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INS180033177.
Janam Liyo Hai Aaj Krishan Kanhaai (From "Mohan Bik Gaye Prem Nagariya")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0dffe7221be2fea7161ba95c6cd4555c1e3da7010f9bf04dc48a19eaa024932. 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/INS180482180.
Hua Hua Janam Hua Kanha Ka (From "Kanhaiya Naam Hai Tera")
Shree Krishna Janmashtami Special Bhajans 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d86992266c4a27fb8531986182d427efc1f61c6cdb3bea191d7093391f7840. 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/INS180033177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476da9fd54d2494e1260d1e06cdc8cfce09144e20bf74aa4dd2a7af2c2367ee2. 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/INS180245005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7252ceae1babfe891785239bdc05179c570442b550afa2ead9cba4905d8059a0. 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/INS189924949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72034b4bd23da297b3a571edcf1ae93a3f15392d9eb810544166c514e0d5aff. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/INS180464245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4594b50bc33a494f4956d68f29d7d539b08b646652348744fa5c02dc4ab096f6. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/INS180704868.