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 0x7f9bff61f9990e3423feca8c733759cd2552a47141f8eb5ddff3f943e29bb5ab. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30e4ff6e-dcc6-4988-99c8-e0ec87183e40.json and https://artists.proofprofile.net/proofs/artist/30e4ff6e-dcc6-4988-99c8-e0ec87183e40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Do To Me (feat. Vince Harder & King Mez)
Status Ain't Real (feat. Iamsu! & Maribelle)
Vibe On Me (feat. Future Fambo & Jordan De La Cruz)
What You Sayin' (feat. Rydah & Adrian Swish)
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 0xf41ebb41b11c1b2f4599e7da473475970c0fd7bc817700b188b454132f9beb3d. 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/QZES92226202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc49a008c3cc3e6a3c03886eeb9787c0f2f7107d30bef5279b03ccdf2a933a55. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/AUBEC2189419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978afa481a826d198316ecb336821816b114643855ebe0636925f55a6bfb8ad8. 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/AUBEC2201277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcf604a371a80bc6917282487a5b27f2bd8de7160910236d80cd0b9957df024. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/AUBEC2232382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8251f96fd1ea0e898d59b7d738b18c542a190fcd94300030dcfd95b10e98ec. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QM6N22141916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fb7119daca581b8de0da6afb16124100ed22c2204345140968ac5554bc4eec. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/AUCY22000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e32c5289bba171cbb1b002f95b21db82b4dc52c719d403ff8181bb87258a93. 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/AUBEC2231826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c598e588c2002898959793d460adc297990804f890aa95bf2a62ecca4351c08. 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/QM6P42025302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b2f352d3290ebddf4fbd1a3136a5643f2f3e6b2dc174dffecd2b40976917bc. 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/AUBEC2239623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9dd830600f638b5f3cd71b98f059a4c79b01411fd717b1f3f70537408b0b083. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/AUBEC2334661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072bb7547ea5d91bfaec19b61235b0d139c2d455300ce82a8020b1f3b2806ee9. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/AUBEC2404858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087a4fef39cc3cb275ff27e1f1e6249aaebeed7da23fd9c4f2e7e9c714f17184. 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/AUBEC2418790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeff0eeb1ac58fbfe95355a3ab114a6259617743962e069b3d827aba4e98970a. 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/AUBEC2440609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b1b7f7d5a0a694e0b43ef0e400ec0fdefe89cc3c0fd2e58820d7a1d4b22f4d. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/AUBEC2566702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099749b3ecfbde34788ccff3291a48c0b5dd08d51c02ee272252c75ad4e51998. 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/AUBEC2566703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede83e6d1fd3d77a27968bc39a997961f367e54b2ca9abf2e23a3326c135049a. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/AUWA02000773.