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 0x0870978b6c012e43797cb40c22a0b6ff2dfbe16419f9a5fd87edb76cf1c339ad. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0ab0f7c-60de-4eec-802f-b3e8322edfcb.json and https://artists.proofprofile.net/proofs/artist/b0ab0f7c-60de-4eec-802f-b3e8322edfcb.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 0xe094eb8ab28d6503a75c80d762423f2f254538bd2549d5c91e9aedc076f9de8a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USRC12002318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8ac1939a7df13d2a43bd71b50d43b02a6dfd1c4b03e679f6a126a6f04f9e3a. 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/USRC12003922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfe7858c3443a0e839e52e4e2b0d474e1ce1da9f7ebb524a89642a500e82a1e. 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/USRC12003967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f300c1032fc9940083ce177bf2b4fec707fc07535aae2a373488f53720ce83. 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/USRC12003423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddb2138173aedf11ab67fbc165bb8c642f9d0e7c9eee4952509703863f53902. 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/USRC12003968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc419d82b32f204675cdb05df202be4cef41041a8e13f0d8a72bd324ce4ce511. 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/USRC12000524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d74c1f791f4660457b4663578621a929e18eb399dbe55f710567aaf8371415e. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USRC12003969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee983cab7524de3b3706b758b2848d13cc5655b6f3a38148495095ba0cc8ee1c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USRC12001988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd91d23504cb6065fecdaf66ea163145851a8e3b0906025c638d8369ffbe18e9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USRC12003970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1777add331040f878f79bc9af4358a1ddf1ad70295ff7cf48706738c70c96b. 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/USRC12003971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8ac1939a7df13d2a43bd71b50d43b02a6dfd1c4b03e679f6a126a6f04f9e3a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USRC12003922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d07e3fff48ef14c1cfe5012477669691ee3835019e61ba6781d94541f34b9b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USRC12003972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe094eb8ab28d6503a75c80d762423f2f254538bd2549d5c91e9aedc076f9de8a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USRC12002318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8199bf59f81ad16a5f2a6e8c53b44d538754f13d77e1f9becd47011fc48c6dd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USRC12003923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab47467148c9613fbe0b2691193a17b38df812e4c873d25d17aa6e25500f620. 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/USRC12003973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf414b1f859dde3eeda08a1de269e829ad2ae120e13e37110e70e2d04b63a98. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM24S2304575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04895cdef6ce9f6d0ba56d9348f13a89b0e353bcda4e127f3a8135edb881e9d. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/QM24S2304065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd812123026d7775d5d2dc0a92bd359759fd29b1dbac35a340e34d913c47fa2dc. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QM24S2304544.
RAP SH!T: The Mixtape (From the Max Original Series, S2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39da6606e030e623608c6ee4d4c38db09c2791fd4c91a71cbfa60e8451fa6cd. 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/USUG12308436.