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 0xe88b4dac92d7752f3528b40e23498d34604cdc91c84b2115f6e4cafe4d73fd2e. 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/814b6032-a41d-41f8-bca8-531df5b30a3b.json and https://artists.proofprofile.net/proofs/artist/814b6032-a41d-41f8-bca8-531df5b30a3b.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 0x5e7056126c2f8f8a12139e092a87131a130a9423bd4235e764f7213f7d8a81f5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEUM71801443.
Sun (Remixes) - Ramba Zamba vs Scary Face Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657f559d7d3272cd23f81ec7b0bde56a5ab95e88502d1695f8bc18d1f6d6daae. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DEY201800507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d501c6520e6c167e0b2b0b79319a948890a515ab84a986ebd071c15aba9d94. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/DEY372002478.
Back to the Start - Ignite Remix Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9e58aba61f9433457fb9982eaef2ae455e6c1809274d3eb5f7bc0ae1008ce0. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEY372002506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa665a391d7457f2ef1bef347c599c93ed331d39a57217317d1f7568e92bb679. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/DEY372002531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873bf6251264e726c3866a506a25e77ade0a7d55e462a97e96f296710218dc93. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/DEY372202733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a380bb1b31b7988f0b25eca649c463cb28bd8d18061a75d5c4b55b4acab3fdb. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CH7812223982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8eaae608e22f63bbe46828be6c2e76b5b7f4047d44aa48625635a04a9f4e680. 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/CH7812225326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8415d16782a77f07bfb22bbaf4349d1c60446a8d446690f39b43577f091283a0. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/CH7812227788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663bdef11b108df7795ba6a22dda64c28df947b69f583de6c5405dc01ce84829. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/CH7812229296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4aa0e957fa1dc16a97d16cb67cbe79979fb463ee56cca32052abb4d89a0f292. 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/CH7812342437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebbb57d052492155a85c4e262a1b6d011816d8be333e86ad1d58a11d26a95d6. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/DEN062300805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56ef0b5d1b99ff37aefe30cf471afcdfe6d4d3a4aa02a09c6fd43fd9eb86f9c. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/CH7812534843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf701ba4550d77d26bc8404e91cef36c9b3ebe7c54638fbc5b91d1fbf236aa92c. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/CH7812535971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56ef0b5d1b99ff37aefe30cf471afcdfe6d4d3a4aa02a09c6fd43fd9eb86f9c. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/CH7812534843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1679f7248953517cbd6fad583b6df5f4aa94b72aaf8691a986845233217eb68f. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/CH7812526541.
I Can't Stand It (Again) - Ramba Zamba Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87b78d0b8256c50407836ab34189dc8b56927f901c234e28987b754c6cee8a3. 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/DET191507797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd7b59462e71bb0cf425054f6ebee39cbba27ee483b2351ae5bedad552e0e56. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEHK91893723.
Fuck It (I Don't Want You Back) (Dan Winter Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9961752d20e2bffea5d35cdea5b9ad1020737452cba0192ff22bde639f031a. 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/DET191511199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e11b095ac9fbf6203ca6df58993bc5328c292a3759f14bba0ef5f17e675c596. 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/CH7812410288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1c81c1f0e523855374ddeb2fc4cb380d272b1fe04c2e0a5a2b3ae9ab6970dc. 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/CH7812413478.
Turn Back Time - Ramba Zamba Festival Mix
Turn Back Time (Ramba Zamba Festival Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5955cb65a0562ffbc4534840746c905c6cbca55c6fdbeec05b3d280e4ea17971. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CH7812413029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e11b095ac9fbf6203ca6df58993bc5328c292a3759f14bba0ef5f17e675c596. 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/CH7812410288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f0b880922e4d43c4d753a8809ad139cf7be62a16099a726659cba99c382d51. 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/CH7812420209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387d1015d43da4b25b4c30e2f39af1cd95a82e9af2ef56b1b613dfd545cc325e. 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/CH7812413507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622f76850fedbd55321ee8eb029adaec485ff99726bddb1b907a50c14b576aa5. 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/CH7812414088.