Darby may refer to: Places United States Darby, Idaho, an unincorporated community Darby, Montana, a town Darby, North Carolina, an unincorporated community Darby Township, Madison County, O
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 0x0c8307d5f1c564cd8921040588874c3a018909ce833ef722aee94f4a31693de4. 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/60405190-317d-497b-b831-031731f6ebc7.json and https://artists.proofprofile.net/proofs/artist/60405190-317d-497b-b831-031731f6ebc7.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 0xc6c919adf3b4c35dc2f815e0eaec7a50419d968c334b337ec6e0204d9db62a61. 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/CA5KR2455057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba731127f80b765488fbcea7af8647aaa120dcac2314e25728bb0c93bcc0ad6. 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/CA5KR2468014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a7bcfbeebbcd3bbdc687b3715b33d03ccd574444d4a09aafd5e6495ea988a1. 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/CA5KR2475647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c6b69e5cb520e5e75f443895805da44804c97beb135f1a9d0d3893726962a3. 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/CA5KR2429671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f751aee77d335637995ec69936b93aef47b5848acb7a9f9aa53f35c4de39d83. 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/CA6D22300472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f08d2590db17cc1cf1843cb71392135e0f9e3f88e9b11fc67996d666544f29e. 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/NLRD52023085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c439d3fb0b31bd60312599bf5fd657121004016288eede4075773b9df58402. 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/NLRD52023074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477cb215f9750bf544a4304d82e7c68f747f851b39a9ce07e518f4258781c8f4. 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/NLRD52339929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78d4a58508d35587619997c974013fb3cc7362737b33b2fa9ad61f1e3daa443. 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/NLRD52339930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0030bae59bb6ff4985d808bb9d2b928b06d1830454928ad33cb14936decf608d. 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/NLRD52023142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667ac669541aa78789adab9a17d6e5ddb72fd4f2c02cd6f4393569b5edd661ba. 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/NLRD52273760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526236dc86a85224ecb64c2c27521568f25de5ced98de4f2106020b7fb4be2ca. 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/GBKPL2210389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c439d3fb0b31bd60312599bf5fd657121004016288eede4075773b9df58402. 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/NLRD52023074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e66076b88ed41872bc39ee6a2dcc7b406ff557e9861c4e69abc3d5e4265cfeb. 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/CAUM82300170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f08d2590db17cc1cf1843cb71392135e0f9e3f88e9b11fc67996d666544f29e. 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/NLRD52023085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1424ad57657fc7b38e2a16b8af3a4bc529d77245008f78842a60889654d68e. 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/QZFYX2313193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8978564068bc1cb6fa3c31563a7795b80fba544762a697b6f7aa0dec33dc76b. 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/CA6D22200374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5ad39afaccd56f5e05a32d41f7e6e49563310ad7c7ce1109966de5afc3adb5. 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/NLRD51632917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d2fe0d96b6f4b4c7dfc9f386828321c4d458b30d078ac740150665b5bd0646. 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/GBCFB2400666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb21747bd0f17914f0b4a5ecd54459f5ed924c031139ada2570f234ca88e91f. 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/GBCFB2200172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba731127f80b765488fbcea7af8647aaa120dcac2314e25728bb0c93bcc0ad6. 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/CA5KR2468014.