Crowne is an English surname. Notable people with the surname include: John Crowne (1641–1712), British dramatist, son of William William Crowne (1617–1682), English officer of arms, politician, and
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 0x9881a4029f3484998d101fdf6ebbe12d06644da9cc7c968db3aa4e4d3645a24d. 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/9623a04a-d560-4d6c-abae-42338d1e274c.json and https://artists.proofprofile.net/proofs/artist/9623a04a-d560-4d6c-abae-42338d1e274c.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 0x8ff11bc0c3fd86f91a3ff68cc0095bcc3fd06c751834a8959addab7c016b8f2b. 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/ITG272300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f87c126faff20b38873d6ddd3de691658e187796fe81fde23ea23ab08c5185. 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/ITG272300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb57f4e2b746d09001ab44e15f392c49e495607a077ab18e89cf580e2a64fe8. 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/ITG272300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe168282c54b218f479ec64f94865104b02c2e5e54df70c6aa420955f6256ee35. 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/ITG272300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5908aa186d53c7a29d4c32626077895ca70f6d4d8ca83e7343f4c8184e645682. 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/ITG272300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d78d855d3198662efc534276ba2ec653a64e540a8aab5e927d29b41f71be377. 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/ITG272300115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d616e38cae0a45ac132a9f57c099a32f961f709fc52724703d240bb6379721. 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/ITG272300116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90852a952391b646cf738afcba54ddd60479dec35e835b8dd347cea937db96b. 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/ITG272300117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc30d22e42cc89bb46b38d583ccfbd2ef8c2c6470b62d2515b77b66b61ab471. 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/ITG272300118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce27b28c4e1f27feec5c2aee78bfbf14a3b1932e2d359f6b06e910a2daa22740. 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/ITG272300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a23860ed0251067e4cd5683a145311fb5dc4687bf4b18d652b1d595f47d8c8. 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/ITG272300120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a547114ff38091e66372ea5d82f67e4fa20082666d1877381096668243ff755. 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/ITG272100527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542223b84b6b4d89453ec04c41541060f2acc7be7756939b76c4cc0ae4aa5031. 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/ITG272100528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6690f2a2ba714b6add20b182b955b27c8f9e95af69a68a28ff9c6e4682c4d7a4. 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/ITG272100529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb77926cc7d1a9a7068a4cf0aba92ef49235673b2584e418106db8297ee178d. 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/ITG272100530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80203fdf90a399e4037e40cb0f0bf703576cb0056a2bb5ff2535f62f5068b913. 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/ITG272100531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765372432c12ee424575babac7921f6a56a0d07e2f5912334c1431443f148409. 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/ITG272100532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde82bae5d89f82ac1bbe35fc68cf0cb9da20de5a87e806715701d60e3c2294bd. 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/ITG272100533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fbff98906274cacec3d60c431bf61899c77cdffc88b1d919469b8559a265d4. 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/ITG272100534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ac8f47afc27b92642ef1587a9090025ccb9e03eec3198a306d9b4971855f22. 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/ITG272100535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6594677c5dd155362e9f5ae9136bcd52bd9c96c14f603a13ef8c0d741668a9af. 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/ITG272100536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3830c9113053eb9a6fc1d0785c487d1a768b663cf76ac55444ba7669752a7830. 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/ITG272100537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb57f4e2b746d09001ab44e15f392c49e495607a077ab18e89cf580e2a64fe8. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITG272300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f87c126faff20b38873d6ddd3de691658e187796fe81fde23ea23ab08c5185. 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/ITG272300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002263d0f152ef93dbbc771e06aaeedf2fe4a8fb0d9d8f6a3b6942f3996b57fa. 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/ITG272201135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0928cac3d7efb10536136007f1c4315dcdc499a39f7f4cb103d1463d8434cff. 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/ITG272201137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb77926cc7d1a9a7068a4cf0aba92ef49235673b2584e418106db8297ee178d. 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/ITG272100530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542223b84b6b4d89453ec04c41541060f2acc7be7756939b76c4cc0ae4aa5031. 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/ITG272100528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6690f2a2ba714b6add20b182b955b27c8f9e95af69a68a28ff9c6e4682c4d7a4. 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/ITG272100529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80203fdf90a399e4037e40cb0f0bf703576cb0056a2bb5ff2535f62f5068b913. 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/ITG272100531.