DNA-binding protein inhibitor ID-2 is a protein that in humans is encoded by the ID2 gene. Function The protein encoded by this gene belongs to the inhibitor of DNA binding (ID) family, members of
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 0x1160cd7571c2791a1a15f4025d78b95a9e0d63b67897740074aaf006d6c8783b. 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/499735d1-005d-4f22-abd3-ba92fc300de2.json and https://artists.proofprofile.net/proofs/artist/499735d1-005d-4f22-abd3-ba92fc300de2.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 0xa5510a0cc0e51ef2d8a88ed99e9f051722b92702d084963d27457d2f486c5186. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US7VG1527888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3553d4c15fa944de84aa5b1bf1e7b1d4486106c38b26ae08d5d708d0e768c0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BR0061000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50b1022fc7d6a3b3ae085bcffd72482ec1959c789bf6dadabc882730faa4b5b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BR0061700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909e2e40e9abfa8c55cf3c79bdadd5ae149d08f97dd59b99177c71be026137dc. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/BR0061700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716d4f4bd7b8929fc6632fb06cf46215538689790e9ca9ca662a0c8b5ab0ba45. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/BR0061700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebf9dfe3b35a0550d7d330463e16d949cf458f428b9d785597350786b6659f5. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/BR0061700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67a763fb253b6d04b1dbe8a87d41777112e8748a1cbaadbe2e207ae9f2101fa. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BR0061700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e37d5ae5b4bfd28e2e6ad768d5ab9bae0f69e8800060389bc77a525435ff01. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/BR0061800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6aad6e7e6e858e3b090c7ac29cda6da5246af4c4a5ddf5d7ceb6cd47e0e94ef. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BR0061800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245a55972330cf1bbc341ee3ecb9af95bbf4baefd4ed769eea8f2f6563e78cc9. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BR0061800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec33590da586f28cf2abacc7c014e98b4bd3a2f35df43cdcfb3e78045de42285. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:20:42Z), 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/BR0061800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff2e5f64161f5800da3fa29b8d445d665fca8f8a31b78f8c7b416655a030846. 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/BR0061900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f2d0272283b1184022289dbd6cd2629070ac9412511ca7b78d97b84d784f44. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BR0061900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4834a14a81cd4c7b0d4c626c7cbc9a96862ee468b1021a0f1be61d6cb7ef6736. 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/BR0061900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5377f4dee5d453412c5cdf3928ff91e5c8298e09748b0d12c21272198c74bae. 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/BR0061900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf8121cc445c885a7b23be87db14940c2695b1759eed4cccaf25aa0194a58c8. 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/BR0061900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff2e5f64161f5800da3fa29b8d445d665fca8f8a31b78f8c7b416655a030846. 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/BR0061900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2870dda6cc169cb9fa7d6cffc7cae90b5ee1a8852fd969660798ae464dc24036. 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/BR0061900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f2d0272283b1184022289dbd6cd2629070ac9412511ca7b78d97b84d784f44. 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/BR0061900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13af4f3dc7c3471243b059d4b17ab6b064f7911058b77e5628df9974af049679. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BR0062000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbebc0c1d3e69aca88dbabf9508d4b2edaa6bdc944123d784c88734d74aea402. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/BR0062000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928a804bd91f98cb5bb9a644c6aab8f2575468f6cd7aa3f2a0f15270f6323c98. 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/BREST1400009.