Participants Of South India Female Choir
{"copyright_id":"0x19a5dbede02bcab9d2d51505a01094524a7b02cd2b8cdce14db3deb32f89fe30","name":"Participants Of South India Female Choir","registered_at":"2026-06-12T08:30:37Z","symbol":"NIM0242758","token_address":"0x5a01b31c4a6bdc32b7653ad94dc3b6ac59dc63a7","type":"artist","uuid":"bbf6af3e-64c6-46f5-94e2-ab2f8610a8d9"}
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 0x19a5dbede02bcab9d2d51505a01094524a7b02cd2b8cdce14db3deb32f89fe30. 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/bbf6af3e-64c6-46f5-94e2-ab2f8610a8d9.json and https://artists.proofprofile.net/proofs/artist/bbf6af3e-64c6-46f5-94e2-ab2f8610a8d9.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 0x59be964e9130f8c9169b9b2f78097c332e1c4aaf37d0041ac188b2916267daea. 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/INV141100275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbadc9489ce7163237ad6e9c3f44609aa851fdfdebe3914c7ac9e886c0800b5a4. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/INV141100166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85608d53a2a4b3082a4aad338459bb64358b01106e01b1963d09d1f0d324acbc. 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/INV141100341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c7fbf26fd95dacfdcba9738ff7dcff63eda00f4b76c5abd844c262eb2df293. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/INV141100345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa918a084db0201f219a94f5240b16145e572c62be7563bb468749cd59238a513. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/INV141200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fb0cfa41218b6a661c04e6e046f557de50f570e46e9198981b819432263ada. 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/INV141200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2545cd703e6d35a41b97051190a3a5edc4eecf7a22456522f55c1f0d7b41a59c. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/INV141200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845e53c3ba61bbadfa8364e3ab0b78073c404dfd76061a27973d139dba461d15. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/INV141200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309c27440044863d99c8d6e9553e9b11c80eae710868dbef45fdf5602c999698. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/INV141200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d06b1854f6ee32591f2b784b22a33fbef4909103e4817f6078136505beebbe. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/INV141200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fb3701837d900d704ad8ac23593f037327be61292dd26aafe2ba437b22f6f9. 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/INV141100349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74912ae16a720f96114a9a55a34edebff5f81a428b3e5f3b112581fa09917439. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/INV141100162.