Exotic may refer to: Mathematics and physics Exotic R4, a differentiable 4-manifold, homeomorphic but not diffeomorphic to the Euclidean space R4 Exotic sphere, a differentiable n-manifold, homeomorp
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 0xc1c98a74fecbd2b27810d77579768b27af967b5e7b2e890cc54f95701f02f6f8. 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/fe3ff503-d2c7-48f3-890f-bd43da845bca.json and https://artists.proofprofile.net/proofs/artist/fe3ff503-d2c7-48f3-890f-bd43da845bca.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 0xbc5e23acdb174be590df8cff58306be501d6d6c40bcc450edd01c20afd4b298f. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:35:05Z), 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/GBMA21880548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b5b9804db83291854b3ecdb503a8b1c0d3c5fde48ccae5c10eab69966fd694. 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/GBMA21881817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59217afdfbc163d049eecf304fc7cb285e40da6441921d43a301286a8e182d5. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/GBMA21881872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77c8a0ef480ea9f86a141963e5a2f20ace84d1745be552ea4872f1b3d6472fa. 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/GBMA21881865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364fb5e9f1155952dda736671a132f0b74a3daf30308f5e4c565f41c614dc75e. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/ESA011985438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f46d90c09a8d64940cfddce5d70c62709954ae0eb5b14205396b95c16774bf1. 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/ESA012094072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7aa2434e3b75c3dd113ac4f476680b9f474f5f97672b4be5494213b33411732. 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/ESA011637898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154685fc536c581aee6510204b33334bf82c370d2574b5d1a4d38716fb510313. 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/ESA011637900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdc2e097900b28f175b222bdfccae2d420444a210ab0b44a8c95ffa8228cde1. 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/ESA011638138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fd5f7b902cef70f7c40782058313879ca5d4aaebd4f3bbc0132682896c06d3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:55:56Z), 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/ESA011638137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f96368c62be24401a1f06240683ca50ff3f15320fd818d9fe437d99bdfd24e5. 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/CA5KR2191412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f96368c62be24401a1f06240683ca50ff3f15320fd818d9fe437d99bdfd24e5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CA5KR2191412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e2677b91c0e72a909697ea3d6c0d9f980977947bf593a02cbf1ec2d98aa028. 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/CA5KR0003216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b72841f00a361b4831086af7d923c3f1770b017f85bc19cfb6a9d112fa2c03. 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/CA5KR0024549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33db4d7808183b7f7d48e7b1f3135017eb8df1b05be2a9463e455d97c830bf97. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/CA5KR0024551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e81f172070dcfe5b8bfde3fe127d001b0610590d9a7f1f92b27603f5824e1d. 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/CA5KR0024553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2b64c06ffbda250d0d937f9c9ebecd4993e2693f6a2e32bc560cf5f956e5c4. 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/CA5KR0024554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f62a8a692df2870d4fa9f9cb01ff536d0db51b60d086c449f294371db3286c8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CA5KR0024556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f96368c62be24401a1f06240683ca50ff3f15320fd818d9fe437d99bdfd24e5. 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/CA5KR2191412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b72841f00a361b4831086af7d923c3f1770b017f85bc19cfb6a9d112fa2c03. 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/CA5KR0024549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e81f172070dcfe5b8bfde3fe127d001b0610590d9a7f1f92b27603f5824e1d. 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/CA5KR0024553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523e02304a002f429a5a6127ab0c3bd53b5ee57e194271a47690b68c7c785c43. 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/CA5KR2382523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee74bd88a660ce57e238f84fa7a036e51d2d616f2b066ce127f966184a907d9. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/CA5KR2391729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9daa2c2626df14d6b17b514b9ab0c329e5d8b496cf8fff834d6a57cbda058758. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CA5KR2414772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad13f82b9246d324cfae9c2f152b160325208dfe4ace4eb11aba8edf93798e8. 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/BK4DA2448103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdcd9e55c4a0df655bb8e4baa038f861045b52c5137d6578195d07e45e28b48. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZN882535870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13b6e75cefdce7e1a8d9de8b5c4dc81ce2043c9d02fa40983437275c1476bea. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZN882571734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd076a88daa99f659613a215d5d9195ada4892482d3a63764792f85363c4b83c3. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QZWDW2512010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d44471e3ef8e98f2b64d21379614a6cd2365df66753a02d01fca5196e7f09e. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QMDA62557989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc417f66cc092be191d6c89142f0d9cb030f5dcfe31721fa8af3dbdfe8e0f78b4. 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/QZWDW2595797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e7919aca2014dd0944323a09c92587228ade8b42024a21432d587edc757789. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZYFZ2512680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b02f23baea69ce3e268fc2eb7b08449202f8fbcf684f3cd07ead00b29181f96. 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/QZNJX2112156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29837d142e9faca0d12e4ad3cd7ba9db65f0849e610fc06fe9b3cfda66cadecf. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CA5KR2350223.