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 0x0dcd3dc9ef049b8e11bf2a2cfa4ca0fdec7f40e105c83c06100d9c1031d60c80. 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/c01ea1d8-4293-4fea-8097-2d0b9097dcb8.json and https://artists.proofprofile.net/proofs/artist/c01ea1d8-4293-4fea-8097-2d0b9097dcb8.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 0x52d642393502908a65381ccca92d2d19433b727c2382c0045330110c4d510b2b. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/INS7A1618535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1b32c58efd90d57c7152fc1453617f66a026a826db4c26f4746dd31b0e73a9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/INS7A1618531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f2c3e24eb39eb12a52c68312546dffe749bd6d168755ab4965975bafcf3c32. 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/INS7A1618537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0da1d35a404af1c6d23fd329baee9efaa5188adb85e659ded12e492800c361. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:06:00Z), 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/INS7A1618517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f92f6253616dc8e0da1eed48c49ede61bc3ee5358c619b93a8ba34000de0ba. 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/INS7A1634650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f0b7bb3ddd7e224857c19c555db29855d2789d1a7297babc1b2ecf0d900353. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/INS7A1634635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4b61718a08780ccc7964fee514f0ba87f04e99129f9b50030d856e3e7b1b0a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/INS7A1643485.
Eja Re Chet Beshakh Mero Munsyara (Kumaoni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64852eca50aa50a935ddf1e2712af7bea5341b6eec3843ea49809be48f1a7f7. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/AUC6R2153518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14446bca64d66c5291c726677e1d7ae02e96e6bc154d11883ed6235107f3e82. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:41:43Z), 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/AUC6R2177260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821d57f24b38939841394fd5461c0ac3da98bb33e9055a70f2cf6579bb766f83. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/INS7A2129462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50f7472ce5378aa71d5b35b0fcd365134aff67619db9615c27bf3b47623eaa4. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZZ432347176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f45818723ade4a7ebc26348db380a8ff398e260dfcf0bd155e61f4d7b1ee93. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZZ432382331.