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 0x8b9a2239c74031bbeab38f23f07d0f23b82f65e2bffd8114f1fb9619417426aa. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0937f042-7904-4ee2-a4e5-fe63283a4b20.json and https://artists.proofprofile.net/proofs/artist/0937f042-7904-4ee2-a4e5-fe63283a4b20.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 0x138f590fcf98a839f37a504e91d2468836f9eccd8470936074733bc790ad285f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTB32254882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630c1f729c841504b4c26475e2477beaaa755ea730438e25d63a6ea644a12818. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZES82383825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367269be36eae57cd22d8c93b539ef7ecca3686017f84f0a90a0dc072fb15df4. 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/INS182402825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1259106854167eda0d307337df8fba3727b757c8502f138f15004a501ad9e8a. 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/INS182303020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ffe8f16b849f2f0a6915b22cce536fdd9f84e5c86507cd704e7095d8353033. 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/INS182303468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6318846a584562d9d4bb0d077c68e43ca48cc442a94d06aeed82a13af2f88b01. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INS182303283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14ce6647b6405d0ad265f1af41cebbc785d933dfa3ee362f75c75e4385962c5. 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/INS182303180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fc312c515f8896aabd72001b3648d1ed3c8a9c0738d4d13cc26dbbdec8c800. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/INS182303745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e103488b5378b02bec57e938755fe2df3fbb3e2298fd8905bd2c49d0945695. 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/INS182303740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371bd27c3c913fdd498db5f3ef0170729b5f6f19fa97f94d9b3f95a451aff961. 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/INS182303668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914e37e814fc3b2d282101243971f15ff6ee244eeea3f31f853e1f28ee2e7512. 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/INS182303551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4faa1645e21681df8a412b6e1ea44990cd913d573a3bdb0d58ef3b154a31b1f7. 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/INS182303231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09c1a40a82d211952fa9b0c43b2dafe845eb6fc06b256b556d3ce0d0581042e. 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/INS182303415.
Drop The Beat (From "Mtv Hustle 03 Represent Episode 4")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4083f2bfa82afe2469f2a475c8bd920c29514f6c4c75a4beff16082cb7f650be. 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/INS182303210.
Drop The Beat Fun Roast (From "Mtv Hustle 03 Represent Episode 20")
Drop The Beat Fun Roast (From "MTV Hustle 03 Represent Episode 20")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c53353c8d826da20c031e948f887c4f584cc3bd69350a587c0a71908980ab4. 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/INS182303742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1d71dcece2490221a3da4f92cd208f396e3dba0ed5641c36c6eb59982dd2ca. 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/INE182326112.
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