The Clan may refer to: A clan The Clan (Liberal Party of Australia), a group within the Liberal Party The Clan – Tale of the Frogs, 1984 Finnish film The Clan (1920 film), a German silent film T
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 0x2b59821d99f2b79e86dc31055ce5dc9062d982f2a800ea83f8f2363ce2df0905. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d68987f-50ed-4dde-abf5-6e8194618d79.json and https://artists.proofprofile.net/proofs/artist/5d68987f-50ed-4dde-abf5-6e8194618d79.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 0x02b849e82c1eac187b20435ea53d3b01ec1057387d4b485d6faccb48e3cdb5d2. 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/QM6MZ1742675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7012ea7dfd3ebbb7580fdc5a6ed6b7e011a4fae509be59a7a11aee89bad9a391. 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/QM6MZ1742676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb907c315c092da70c43dd668e066c80b0040b88e4126882339c51679c1154e. 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/QM6MZ1742679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95bd0e50ea09f9405e56580b945ec7c90b41ada22cc5ad3162aa129c480a4a7. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:42:44Z), 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/QM6MZ1742689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87022e340da63f427f124cc38181f4ee12124215ba95a13227b098484c63dafe. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:29:30Z), 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/QM6MZ1742692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc187d125157347e57e6088beeda9b46ea69a7d76e383b18c234773e8ff06050b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM6MZ1742695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8848e641e389265ad9b8efbb50314cde0b486806c82395ba733f64a96b71e09f. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QM6MZ1742698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e695e1087094ccd93340239f46c0aa9dd9b93e92dd0141bbdd868e99cadb21. 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/QM6MZ1742286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa801a4b06fcf76c52c7772348e12c304ec661f7085859ce82f577accca0bfe77. 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/QMDA61873025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2faef9508c111c1143e47816b088840e5600bb8beaec43bcacd9a97b353121. 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/QMDA61873026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90f91700fad1cd07b4cd8a382abce4684d31ad7f3df2ad0470a5820fce2c380. 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/QMDA61873028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb750755ceb0fc0d582f7501b9782cfd1c76dd72fd907fa3d2fb99370bed269b5. 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/QMDA61873029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdab97bf4c82dcd9f6fd95bff305031f678dadc106a5f77d932cc5e4d431bd01. 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/QMDA61873030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d55a370200a582f3b39db790eaf3725c0e7f63798a11f3abb82b1391e264885. 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/QMDA61873033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56594b79e554ea3c76c6a6f72aa71c028d6de052e3612a8bf77d4a8b33e93fab. 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/QMDA61873034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14dd2f5154eea7e2573f2ba4afc307dcf65c90f33b900ea31b7d572129a868e. 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/QMDA61873035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e354628ad6bbfb08020635280f6325f8286f9caad3391587961e5ab1cbcff6. 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/QMDA61873036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ac9297e3979caa29cc97a6dddb7a6824731b1b97921cb5c91396f9d6974596. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:56:10Z), 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/USHM91932892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca23c2db1479e1b76f628b77ee33f9f942691b2b833aca16fbaafae4f934490. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:46:48Z), 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/USX9P2027231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4b9a66523f82894d8812b409768afba88479ef0f38b048603767e4f59c3f11. 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/USCGH2596266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf739a5ed57a9aa5958c37fb3fa76d0a735787ad40582fbd558491acf7b9ae3df. 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/USHM22501533.