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 0x684943d6df019404e8a30d18a5a94d37a949635b7ad43a5c6869370186496d2c. 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/2a605bb0-e7ee-4aa5-a198-dfa5a43c69f5.json and https://artists.proofprofile.net/proofs/artist/2a605bb0-e7ee-4aa5-a198-dfa5a43c69f5.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 0x27d9220b3e68a134b46222aa44cc730318940fedb0aaeae95e0010d5e3f18d56. 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/USL4R2461339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7fd9bc7b89cee2a073e6135d856793d8ad40ff3e1c00f13c3bf79b170155dc. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USL4R2461340.
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 0x5d59c9760c37f1d22aac801b072ccade6d4964a29e6e1e908004068c04442113. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/USL4R2461341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0317e85df2d53c5d821618bcba4a056a33ff57517b8605b60524835aeac86efc. 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/INS182303278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898a6952048e0e239ad7656dcda4b588de51d642b1a014773910ebeca07a7328. 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/INS182303479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b46c47a7107b5151d809a845bea7ba69cecbf2696412903fd87b91b552aa89. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/INS182303651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9a2aa415f94290623e50ea8a1f4fb57871c328663a384fa5063f3101145e75. 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/INS182303188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a3800c56ca1f820292e727f98103bff74ca6261747617899aefac0b5afcb7e. 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/INS182303741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23128959a4dacdd16d29ffe98e7cfee522ff282e9c7b4d69d2428cdcd5717743. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/INS182303233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba16fdf08045e9f5f2ee70629bb43479ff9c439d91521f18ffe888221a93ee8. 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/INS182303556.
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 0x3c9062b9b05aa9e44133ec38e07fc8dfe3a253d6113ac94223246d22998d0ef7. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/INS182303089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ecbae61be73e65bb89e9dc0201d7d49abc27d3914c86faa536fc372c347c26. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/INS182303410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a667ec6565d1c3d8c4c8709f9bd6a012fa158cbad81933840ea20f7d32c237f. 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/INS182303097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec045a33e4291f964cf78eec515379e809314c8f17a228680ce97d667c6ddef. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/INS182303420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44662d9ed5681e29bbd4d8e443e9ea8ae9a6b0f974050cf7d49902451bde053. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/INE182326111.