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 0x570a1a5d20ac8a934111369a3c8c516a8663f84e010425efa22690294af9d2a6. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc2f23c8-271a-4b5d-825d-ba9400d8669e.json and https://artists.proofprofile.net/proofs/artist/fc2f23c8-271a-4b5d-825d-ba9400d8669e.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 0xced4bdb518c464a7c0e567018441d1ba752ab24fcaece0ecd8e9b5c755a3c92c. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/USUYG1244226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940166df6748080f07859b5b85e08cfca0d61f693ecc04d5fb1da31e7258290d. 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/USUYG1244227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d2327d96a38de997a1e932b7d225903802fef9f6919a8519aa771ea14c72c1. 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/USUYG1244228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622c86d30a1b6e87d9f7891f20d554e56924b6351c7e64f5b071914804af9546. 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/USUYG1244229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949610dadd79367dd72bc6284bb63d3ad660a2b1f346e185e3a9ea647ecb7e4e. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USUYG1244230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1f006024fb90bbf6aad4a5e23e3bcd92c1c90dd1640c72bd2fac6c6c6e53e7. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USUYG1244231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a95c3b15ec036de7e4c48ae3fb90b3e05ba9f8db45ef6ef7752ad1652e727f. 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/USUYG1244232.
Just Right For Me (feat. Savannah Cristina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e389fc3c2117e1e18f61d2b6cd2b88ddf8225870b3094f81d181d6a72e241a. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USUYG1244233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac416d8717b26c5830452d512adaea2b4f96cdc41febc6396f3d2b7231ba4b14. 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/USUYG1244234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbda8cefcfb17374dbbd619284c6c40d1bfa8c6cc626fe519ca5c11b9d900ca. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USUYG1244235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af78296bfa866a5c007f9dc18f415d11ee12cbb61868ae36bc8bbd02a98700f. 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/USUYG1244236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b5a2507c9aa30ceaf0f716989b557822d5b0ae97bcd2ae327aefcb5d061a1a. 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/USUYG1244238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed988521d3cd9127e19bbc28aa212de44be7348e6d797177e06e5be8027c151. 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/QZNMX2336229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f87c2c810ad7f5ffadcdbc680515fcb7ef8a12c946b05b6108ff8d7c938b1b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZES52336341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac328a55b80907e72564de5e59598cd348c898c48a7bf4842108be7158bb7bc. 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/QZES52336342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a13cc7e7898f37921b4655681907526dddf9448e01c758289c9ab41e4bd98b. 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/QZES52336351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36cf045b18806c7f7c7ed271f521ea37a0e588abad2621193e456b15f1d37daf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZMWW2281240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a92ca73d1e0089e354d7f628e461cb59098dd75ff8232bf1a4c615069a8885. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZNWT2283875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18029c1cc57c93503ced95f5ebdd203d7f4c54c5051eff79c44c0aaa45978aae. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZNWT2283877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8841252fc5e268a9269baf8ee86619d63abe2ab3b23b2aef69485f96b647d3d4. 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/QZNWT2283879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6442c3dfc74d88c6f00a54a2a1f0112c5eaf55f727618f5f99ba6521fad5d2a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZNWT2283880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe833852cbe8c3476b47e6f98f311afa19ffc03b99eab881f3463c8815a6f50b2. 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/QZNWT2283848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1170e1afcb4d467fa144cec4aa8ae1fa5c9431bae4771276caafe17afb2e86dc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZJG52279304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3560e5e319f44c357f86db352eec9a4ce0a9e59d17ded630abefc707062751e3. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QM6MZ1810281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3bfc11d7ecda4046c77d66e588cc7612b6879129baccd2623e790ff987acac6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM6MZ1810282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f210a229f7ce0be283a8f5d7707541b243c446a105ad95e5e876ffef9d2a49. 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/TCAEB1938801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638b698033ff8a1a39a64dd3dbb2f818ea9c1d4f08a1923dd99294d9c7e1814c. 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/TCAEB1938802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6425847eedc3c94b12c334a158ac50f2518867021bdff0da1b48721bfd05dba8. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/TCAEB1938804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd25afd97f593e8b499b8b3a7220d219606e2ad2d743e4ab5a86ba90748363bf. 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/TCAEB1938811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4b725fb07cfbc7c62fc85038d29e51d8a6ac35754519d5a6d5bd83bc164eae. 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/TCAEB1938813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf818b945bf62f2a956917267b0b8c989005362c57636975c12b14bbc8b0944. 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/TCAEB1938815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9c103d840fc961b124aba9c2307049fa951cddf135462849e51d7d76962652. 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/TCAEB1938824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3745cd3580ba4b6e01577559b4d0598aa85719b196a572b2f9cee2623d2e79d3. 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/TCAEB1938833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea0e669bab557d9eb0d9b06d6a8b44d92a972e2ff310785c5955412d8ed1623. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAEB1938836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84e9a4320c286f5f29aec76d133cfe20904afd523a0295432bfd148bd2053b2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAGM2277859.