Warrant may refer to: Warrant (law), a form of specific authorization Arrest warrant, authorizing the arrest and detention of an individual Search warrant, a court order issued that authorizes law
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc1861a5e34dfe2aaf9676c7fc7d8796b04faf4918e68f7479e4a51df2d8268. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0daadb1-45d9-4a23-9b80-bf50b476a163.json and https://artists.proofprofile.net/proofs/artist/a0daadb1-45d9-4a23-9b80-bf50b476a163.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b229503617e00068d582abe604df5242832d87356177523dcffcc83ebb48ce1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GB5KW1703990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099092ae4a1f485d5657e95525d984a2ced1ba329e5334d00d23c3c42e0e4319. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/GB5KW1703991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22924eef9c636b1c0ecce58570bab28a90aa6e85564bb9ebd110041b2ea2082b. 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/GB5KW1703992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca11712066182e4a27030650828fc8d8f59ac8767a2ab443c5d44a1d93d37661. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/GB5KW1703993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4acb3b37d42a5cfffb6e8b6887a9059747adb118856b4a6dee5345c24c4b730. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GB5KW1702660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2418ef2bf7275359d7a2a5a4040d5bbeb4ac71dbcb91e1f6fd74f540e76991ab. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GB5KW1703995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa046a85aadab71450a7a8b0e9f3b55be48648f169fab234b6f6cf6dffeaf5d63. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/GB5KW1703997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd507a3eb26d91628ad05eb36228ddbc1a7bba0c04cefac6f835cec64022daf6. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GB5KW1703998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70acf4833a41909bcf3d6d1494dd307706891ed3460fee47f6034c3a89252356. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USAJE0500396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7820d7c808ef31d2d42da67f58267c786e6d2c954d022f18bdda67036f65d2e2. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/GBAJE9600245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd21d0b6251fff5e8f01e91f06f6382e11378da991964ebb439bf5af2ea017cd. 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/USAJE0500397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a98518741132cacd9ef953acde570e08593c8482e2407454369bfde36ff0b7. 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/GBAJE9600247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53c8fc73a1d447c554e3a83f5e6e85a5b62843b0899052a12971ec9b5248528. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GBAJE9600246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffd67ed685873b7f74eb76468f07b077f1e109631b1ad12ed0afa19b777ef3f. 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/USAJE0500398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf139fc5ff60327f2e83f58ab73407425f024396c7b4f6cc8e2db70353a1936a4. 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/USAJE0500400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97564fb47f7fb70bb81776e631b8a585851401b72c5e33aa054aa4293995006. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/USAJE0500401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dabff59968cec6412c4ababd8750100c9a4f20ae9674c7f82e63794287674be. 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/USAJE0500402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c43555d44fe65b7a0fb7241aa7d9d02be12969f3398bcc717c83a1f3e13423. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/USAJE0500404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9bf3087aac9019d9ef6cc9cb64355f118d68604c35b4d9e850853c5848d6c0. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USAJE0500405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd975dbeebf4fe74ecbbcd237a4868039fb367c6ec6b288328f79db2a907d661d. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USAJE0500406.