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 0xda9250fa395f28301f18270bb74321d530ed83c2f4317db24469fd1949a11679. 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/64922bd8-a215-4d4f-aa26-be16b3a08915.json and https://artists.proofprofile.net/proofs/artist/64922bd8-a215-4d4f-aa26-be16b3a08915.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 0x5f0bf3a620ddd4fab7445d50fe3b2d8246dcfb30981e942202f85bf7fe6adbaa. 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/NLQ8D2101175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c8f438083a0c0dce8769d53ed5693e83a0926bb4fc0a2c3b380e971ed1a598. 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/NLQ8D2101176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb68bd1e2e3f00260631ebf24e9640100a93106bedbe1f03d0c0dd5b2d553e3. 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/NLT2H2300856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3987c7d4a7d2ea764bf326c6abd1525c81e5b4e121d36005223f096ace39f5. 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/GB2LD1900437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0919dc3cbf4f3264ec5d424e6250d194ed0df9ca831db7d58e4c5944dbb26663. 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/QM24S1840347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee58914aa8f7823a7b1b49d16be21ff83da351773b8d8cd05dbd509266f61cb. 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/NLQ8D2300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb1f093d1831c71c559591860641d6bff7d74965fc21d6828d0270ca9bd562a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ATIM52500091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb1f093d1831c71c559591860641d6bff7d74965fc21d6828d0270ca9bd562a. 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/ATIM52500091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731ef17b2380adae0bb69ff1f78f4f44983141eaf7840140e56b165b2079ee2f. 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/NLQ8D2300671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8a6d64dd559e298b9730b2c9ae19d6e9710dfbcd97d8813d4b9ce8a96cacfc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH3132300490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05e934b8141bfd1f74ceba20cc2bb7a4507c8d10b362dc32109126e151be22d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLQ8D2200186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc885ad4cb58dd8f44210c9799b6053a8d1e5a5ba1e7ed97ae2e1ce75a795761f. 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/QM4TW2171449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf343a882306dd53b891fed9d0b187b4b6e4e908524b75350a849df210d6ff6f6. 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/CAWHO2029908.
Better Alone (feat. Max Landry) [UNIKID Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda71f979fcca29abc822768cae76703dc253e2e701569c647cb0410c548501e1. 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/GB2LD1900337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7218de5df1f9da44ce46f8e3f0141c51df997f89a8088509b6accf2f7dfa3f68. 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/ES71G1905727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a18c22a6441d779dcdd7b6dacc5c1e77cf4f58bcb5709e24f3e5a7c730b43e6. 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/GB2LD1700380.