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 0x68a9f457802b99d0cddc51bf51dbb2574e74d597b06726d19f4612d83fbfb0e8. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66051aaa-c1bd-4f9b-b67f-33c087637038.json and https://artists.proofprofile.net/proofs/artist/66051aaa-c1bd-4f9b-b67f-33c087637038.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 0x83b645b7f6bdcb14773cf5be5e264be45a81b240175716588a4af54e8e8d2b3d. 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/FR9W12010756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53500efb7d323a1c4ff7b387075d3e5092357b75c52549590e1a19d2c917adcd. 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/FR9W12010757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3c7986f122c9d58cba916fca03937ad0238dda12dbfeb69b35e41020711a26. 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/FRIDO1911303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0721580bcdd5022ec478441cf8ab04a8ca640ceda56b26dedeb9ea890b6102ba. 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/FRIDO2010736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8477c8c6bbbbc3bdc60fe241c9374bde5148da83bc7488c3ab8847538aec7e. 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/FR9W12010759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010e907f921eb89be927cba9732a86cad80a321f1104bb4edd4a218cd42fe181. 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/FR9W12010760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a444e20c2fd93e4f973a3b3ef5c6ca6a8031436a0d861f8e471c5c5bc46c14. 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/FRIDO1910964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf065004b9e726b1def6dd2a309cc736f385a5cbce739857aa139f187c84080. 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/FRIDO2010166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc70f7913910458f0b08bdd5ae877a3cf6dea6d61f17c65544b202300d4d8c9. 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/FRIDO2111481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010e907f921eb89be927cba9732a86cad80a321f1104bb4edd4a218cd42fe181. 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/FR9W12010760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0721580bcdd5022ec478441cf8ab04a8ca640ceda56b26dedeb9ea890b6102ba. 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/FRIDO2010736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf065004b9e726b1def6dd2a309cc736f385a5cbce739857aa139f187c84080. 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/FRIDO2010166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3c7986f122c9d58cba916fca03937ad0238dda12dbfeb69b35e41020711a26. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FRIDO1911303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a444e20c2fd93e4f973a3b3ef5c6ca6a8031436a0d861f8e471c5c5bc46c14. 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/FRIDO1910964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf473a37c428f9aa3801954b9ab42a2c7736e10248069b033ffaedfcd3d5666d. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FR9W12204553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92055acf1f723a036c2c11a5c6215c22057f281229836ccb08018712b2bee6b6. 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/FR9W12209492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5498dee1f0faa876fffe2f0bd1914e21d43ca002deb0887cbde47f31704be9b0. 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/FR9W12209493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13542b4fdc1ccbd5f7f526f81a8f92858846f4334388ac9018d7de5d0a3e8c57. 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/FR9W12209495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c84fbea8b4e1d4b64b35d9aaac483a48277250be0e1afdff412cbffae04caba. 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/FR9W12209497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e74eaabdb614940382ee343e75941006fff7bf00a10c1c35caf933820524083. 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/FR9W12209498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe68665a5d8c26b8c5b2b212ca942b26b34f1030e1bb9938ba6cc1f574751e6c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR9W12209499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413c7ceedc0134a86c0c2a6c9eb1311b6613f5e98afaee7414965ea930e4d758. 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/FR9W12209501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04a0326e9126d7772038fb5446214e3d168c5ec02c6de45fe8a200cf9639f55. 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/FR9W12209502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f75e57c2cb5cbf2f10d1da4e3a0471674b2313ac7440902dbc796ba8784a0d. 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/FR9W12209503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604d46277035829a47863805f0b95b20c465b9a0a243a90cd99ea859abafe0ea. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BEEN92200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e8fb648770e46df6013b88eb2345cc2cb92c8e98f9b1c48bb5d311d043ecfe. 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/BEEN92200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b17d11120627d75e93407049596ed795999da99a665811f8fd2d87f35fffb04. 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/BEEN92200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf614e902fe914d9e835a899fc895d4a7ae67c3cc3eb35b6324d655f3c22a631f. 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/BEEN92200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1b6560d0c72b9e7f7b68a6e6e864a892ba4df30124328953cb9a55a0dbe23d. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BEEN92200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfe93f9598a92538a82704db21a8ae8450cf2a0338a8de7295b2b2cf8b3b2d6. 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/BEEN92200011.