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 0x4474b6f26ba42b9c0ca8596e842e7ace03c56676bb8c24f26b7167b603a4a59b. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e217720-8968-40c5-8729-ac46ece66999.json and https://artists.proofprofile.net/proofs/artist/8e217720-8968-40c5-8729-ac46ece66999.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Need a Tune Up Vol. 1 (Deluxe Edition)
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 0xde5e3299fc9daf7f230dc83c990cb7d6db25dd4b8eff26ba8045e46f0c6dd11d. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USZEG1200639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eaa44a4501954e015acbd83039ff9a3001767d8a0ac377c2cfcb96d27a8621f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMRSZ1802527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c6c1ec98c7c4c2a38fb3430f0dc3269ae472e1465d05133c3cbff0c95952ec. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QMRSZ1802514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc66f66c8c169c980a41faea811648ed9cc9f55708da9ab928ff621c94febbeb. 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/QMRSZ1802528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb68a2183ff0a74061b3eef4d36e222a7cbe05d54af810e93c20e44e1411bb1. 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/USZEG0900078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455f22fe16ece6fc36194b9ed09b20a920b0ae5b6185748afbdf314a19241ea6. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/USZEG1000268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa519dcf114a1e2b0f43de11cb59b39fa8d3a7900fa7c121053cf9d86726b066a. 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/QMRSZ1802530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949025b86c1a07f740e1e0da1cedf42249ee8de1eaf985bda2d1a17279a78d19. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QMRSZ1802531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd8d4bb4f1331072c2769c34217869fcb8d79291b877ba218bd861060d903b9. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/USZEG1000272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd489249e004c1e5540000c99b3cd55c3f0b894579534e05551d0a92aeb1c6f. 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/QMRSZ1802534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ec843638b408bb3daa26bc8695cb378195b7b0d135aa5dbac9909c34549695. 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/USZEG1000273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfde4095a6a489cbc0859e3ee060bc2382d095ad8f5d7b704ed75d18b1203a60. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USZEG1000264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d15208a4ae73ddab60eddcea7ed7106bc275058caf0bea5f1dc1c7d6c693753. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/USZEG1000269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b0cdae94c1b45be90325f1cefbe2bdb505e2749908ea0a94affbb20ddb0736. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USZEG1000270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd8d4bb4f1331072c2769c34217869fcb8d79291b877ba218bd861060d903b9. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USZEG1000272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a26c56c7b8b266ec5ff572aeb1d81dfef27b79606db6d161307453ffcb8a1fe. 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/USZEG1000274.
Pretty Girl Shake It (feat. Fatman Scoop)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68aaa2386be289d91c16736737c84b7c0d480e88a49b0eac5ccc728d6c7cb50. 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/USLD90802853.
Pretty Girl Shake It (Clean) [feat. Fatman Scoop]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdce5292990c42e5b2848cedaa2cd5b701b9660df50bb9a7452f3a6638977a9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USLD90802854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c326346c18fef606882389a11dc9636085e776cc17ebbfe12f5c0f3c5fb46f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USZEG0900099.