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 0xc423e0cf073811249a5319f4b2a6bad1bbdf6d8efa0a84d83c9040aea6701b01. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eaa5943a-1cd3-4241-ab5e-35097bcd30d5.json and https://artists.proofprofile.net/proofs/artist/eaa5943a-1cd3-4241-ab5e-35097bcd30d5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shan Bhumihar Ke Badhaile Rahiha Baba Ho
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 0x573cc99952dfa9d9750c326661a80e320c84fe838f0f2e103dfe74d8f1328b57. 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/INS7A2449448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29df70b595644baabe2cda27965cb9ac609c66782b350e90d9c70d74127e322c. 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/FRX762520216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5717ec0196b0bbebaaef04262177f82d3c181eae976613c83a426697975afe. 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/FRX452560165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf578b4ffe5596da3942fa65f010d1e01eb5cc6bee3e560e8bd053bf6d3bf6617. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/INN242518973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1218e560ee469f14a8210a3219af3fb6b9e20353b67c27d06add1ef5261fb8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRX282521238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a93f1005cb2f791e6e530c14324fd333833889742defbba04c3f2ca6d9df0e. 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/FRX202528172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac28020d2533dac668183b1400d0550eda653bb15267c2263ad03a1963bcb7d. 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/FR2X42559157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54996200a5c93d8783f362783c7a7e4c923f63b47fe513d0b2748c38d64df9ea. 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/FR2X42520446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde89dcabb6606dc90ff22bd99eedcd3127e8e7c1661b4083f93d0064024e7977. 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/INT1A2205905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c701cadc2e8316f946e728f765409c5b9cc3f815614499bd58c035cfd12c4e0. 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/FR10S2531522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fdf94a5521e24eea5b6ba05874b601f374edcd1d11547648b382577a2e6ebe. 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/FR10S2500905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69120f0787a83abab958af16eb1510e1bdf6f7e3aa79f69b3c8d2043242511df. 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/DGA0T2464064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a443fb4a39dadbff6558e3cd48bbe6499c89e448174fb14e714d658d209455. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DGA0T2416628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99de3852e7cb3f98d70856bb0ad19e77b02c89787764c9678b4740cf0fba1013. 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/DGA0S2462752.