Dran is a surname. Notable people with the surname include: André Dran (1924–2014), French tenor Damon Dran, fictional character Henri François Le Dran (1685–1770), French surgeon See also Glau
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 0x89a451d67b708a2ada23eb1c1ba63a4f82ab537a8d3eb6964f3ffe13c42509a2. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/caa4e53d-b54b-435b-ad65-5b88b3689869.json and https://artists.proofprofile.net/proofs/artist/caa4e53d-b54b-435b-ad65-5b88b3689869.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 0x5b83ba89237b17ad0cefc9da25b4b4e62e5a49300491b68da8711667d554d4e8. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/AEA2L2162329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8ec156423a26b928407154e1b0486eb8d1d515bbe3018c203b5227b8f49ad7. 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/AEA2L2185749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5af74f7a02c64bc5f3f9c0deb1ead77b36bbfd389bda4a4b3f3995905e66415. 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/QZTPX2563620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e1d85b9f501893727217427c07ff9883be1e1ae56d0cee7d8641fe95bd5cba. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZTPX2563304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6193d44c1f4f4b6996e6be7a3eeb90280fe4e2b8fa5ed9854ebe9d534cd975. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZTPX2563609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b99329c59680eae26353e651290825b08a9fb7acf4323e1092e4fd8f42b1c16. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/QZTPX2596057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b81856a731d24439822129f5bddd2724c97b358e913d1fde407e7991108add0. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/QZTVM2501179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89a25576d5774488cc08b649a92d4c89d111aeedd37a3523742331eb08affd4. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZTPX2582033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7792d965ba8242a6d9321b4e5e275438459074f34606ea0c3e044ceb742cf6. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZTVM2506978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa2c6120e13b5437f3b5216daa1e903bca41000e803d5117685119f2e4a4f9b. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/QZTVM2507693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064fdf43206bb0ec09ba10a59907cbe4c2a8d5bc2ffb708bb63b4ff5c34d9b05. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZTVM2512639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2280b79f5377dc05f9c337d348886dd1abf91cdaa9fd9e30e87cbcfef08a645. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QZTVM2529004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd511303773d765795d6264a7b5d2c4cf71c7a4077238fa42f385d46f253af786. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZTVM2523725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22f591b0a71dc2c75fead669111c155f0de2aeb81ac1e40070eecc785d99cd7. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZTVM2521424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa57e48d7a645108117db79f2e2ec99564fb646fd9b027f603d70dfc8e8242d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTVM2524565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1d0fd02d4e3a7c3d6ae4fa4a951ec5282365ba97ec483fcacbbb4e6eb13f9e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTVM2524561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1d3ded7b5a5538b5f7f03ea7087a941d52aae0c16821932d697d9e0cbbc544. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTVM2538815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0972dfc912b709a1149f770f907afbdbb0bf61911ce4162fd599a40246a49a5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTVM2533013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34980d68b39287da136f3ff4a2e94bae553d1ae8059a0bfcc511234606f6d159. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTVM2538816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0144e03d09db7e91884acf1d5f86960355bd4f59a0a1ff6abc3ea1b245b1eb5. 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/QZTVM2546958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19d96d827ae62c76a7179052f047ea4d732c2fedeea1979c4e490726c973d2e. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZTVM2551005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106e17292f50ed2c1bb6c2d5abf3bd2d964dd828a5f6400e40432f049a703ff5. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZTVM2550075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b2c097f40a649f9d2553c4841d29e3eb9258e43225a828aac1deb6577b044b. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QZTVM2551008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07b042eb2491df72588d22d99e84deb5c4a9da61f35b579e8867cebba848baa. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZTVM2550092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c412f8df3d4406852cbda9cfad436fcb71f0a3e6579e7c0d2140c137b3df63. 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/QZTVM2569510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649da34fecaa51f65f05567e66285b8d51c119e4a93ddb8b8d6d24e8e9a7687b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZTVM2566947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b58ef9858be8c884b33fc1aba9c19c1f91e8cf6cbc293d37e9d68055b67d0c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTVM2564798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7943e71b31d0d945f18ec24e38c323817dd936306fa1cbaf10a7013d5fc92ae. 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/QZTVM2571047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc2166871c1547cbec815e38938e07ab7e404494cd0d8003d86b8cbd561569a. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZTVM2579484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a282ab87d4c5c84300d9e0c10f5ff8122a99779bc3d87d72ec63b0df6cbd25. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/QZTVM2579498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac39d36c87854d06b75abf4279f4c53a8c60efd4edce79434725925448d4c8a. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZTVM2588741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d5e2129a7725e7a065f44717f376f44bbf3c3b375279c7098f3b8cbd8e2604. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZW9K2503368.