A candidate, or nominee, is a prospective recipient of an award or honor, or a person seeking or being considered for some kind of position. For example, one can be a candidate for membership in a gro
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 0x40f78a8b5cbf882ce17b3a51aac4d5fee92f0065c0d50b88b2a5508665b22f68. 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/16463330-5bc3-42e1-8653-ba59798c5fca.json and https://artists.proofprofile.net/proofs/artist/16463330-5bc3-42e1-8653-ba59798c5fca.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 0xc9e55887fec32f1a33ab9fd29b1bfc6b9325fd7cec15ab8959036eb0e29a9ec4. 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/GBKQU2481567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7799590dfb9ef9fd57cf75bdff6fe650e2b45480e7f291ffef5b6c81c9c85f8b. 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/GBKQU2481568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72e32d7b8373de8c632bf77f555d4ea3e92e768342fac1003123d69b72f2e40. 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/QZRP52464290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c28daaa776be5f00db3d017f6eb050d1122073beddf039173ee46c4a381872. 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/QZRP52464291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131bf28232be91cb7af04418fbacf03e798ba9b678d0038f1b62cd01617eb041. 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/GBKQU2446358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1175f00dfc35e843d66d50f92b774b3d8acd6cec0dc32b2e2eaddbde1969fb72. 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/GBKQU2446360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4481048f7c644467069ed26133532258d9dc70b5677ea1f3885a6c4e11337d26. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:04:00Z), 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/GBKQU2446362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e04a7f339755c0bc24c72aa4238c77fdd9023baef13933315afd60988e73e3. 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/GBKQU2423046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe660edf6ad5b7a6c8e0e53506083db54f2cb6b0069a23c036560642e6b3bf77d. 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/GBKQU2423048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d530d960d3c65d7fb3ec9ff3f722d5cac398c6f5b7f5c5707f5bd048b1ba10. 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/GBKQU2411792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55ef94b6806a2692fc19c5840d0208ebdee5a1afcd4cdc0749d991909448234. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBKQU2411794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b489cca39bcc7c18ec607e72a755b3ee78e0d21e3cb8866a030b933a97f7188. 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/GBKQU2411793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1ccc88120ff4f3094d52b200d80582148dadd763a361fc731457979c0b2304. 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/GBKQU2387783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe1a9c63d2c203580ad290d3f04ee187f79643266b2219cdbd54dde6c62a6d1. 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/GBK6Y2251141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5352bc37cbc47124d78848120b5019f31b90d28133387ffd7e620a08db3e41. 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/GBKQU2387779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbcb051e2d60cd15955e07f87e7be6233e158b1b930f451d87ae2ca4209a1d2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBKQU2387781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaedd28dfaa209096ad1e251ee097dd054577475ceb89a235a7eafc1fda17359. 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/GBKQU2387782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1ccc88120ff4f3094d52b200d80582148dadd763a361fc731457979c0b2304. 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/GBKQU2387783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e559b0703c6d76094addb0c73af9c6303d4db1230979ec44f5ef60536095b7. 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/GBKQU2387784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cb76987914424e57d6575d6cae88fc3b939d33cba803ed4530c8fa2d122c84. 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/GBKQU2387786.