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 0xa7507327c0855bf7b788009ac71d8d21fba376482b0e4161e0863a85e3412730. Chain 2 (Bitcoin): anchored in block 953598 (2026-06-14T06:40:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ca1eaf5-d135-416a-8da8-59c65ff8597e.json and https://artists.proofprofile.net/proofs/artist/0ca1eaf5-d135-416a-8da8-59c65ff8597e.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 0xe37dd3473b11cb69526798268f0b64c241ebd7c93d26f51d5dc2d1ec8c9065aa. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/INM431104759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebc22b4b2d984855a4f793d9c55b4ad394b2d1c58ca743aeb7bae7993c2dd52. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/INM431104757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4aa17fbfc8dea28c2b62c4d32cdab49b4c3af298afc5376f05949b1186255ae. 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/INM431104763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4fd69fdee898e89c4e2f4243afbac63773a36197326d1fbaa033de90296464. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/INM431104758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac01e46262147a4d933bd2f042918c7e89cfb0c5ef838c52105b479f759e8424. 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/INM431104756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687288844a380240961822d89d3dd564c6548a9f535060e3db78efb937299542. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/INM231400509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea76c9a1e46c1a1fa7919a4a3287e63d8e6a793e1679ae845adc210234c0946d. 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/INM231400510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf35a6b12e851b1d3a1f2b3851f75bc7198282a97c1149d5156d43ba2dab0f0b. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T22:58:12Z), 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/INK371700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b980857a9f286fdb48227878e005d1bc98a27b879922c3d4ad61bc30cd4ca9b. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/ING261900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80f4e30b1c0db5511cb6a1d95dec0d02b0b3f601f56f6eb0d8000a6c65310fb. Chain 2 (Bitcoin): anchored in block 958660 (2026-07-19T04:21:53Z), 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/INT282207775.
Naam Dian Pain Kaniyan - Ravidas Ji New Shabad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80f4e30b1c0db5511cb6a1d95dec0d02b0b3f601f56f6eb0d8000a6c65310fb. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:53:25Z), 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/INT282207775.