Knut (Norwegian and Swedish), Knud (Danish), or Knútur (Icelandic) is a Scandinavian and German first name, of which the anglicised form is Canute. In Germany both "Knut" and "Knud" are used. In Spani
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 0xec5ac2abb6438ebf61bfc263a31964937427f3a9cfdcbbb8661355eb2facb2b7. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c604603f-98e0-4fce-8544-e372af97fd68.json and https://artists.proofprofile.net/proofs/artist/c604603f-98e0-4fce-8544-e372af97fd68.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 0x461e61a4b74777c61a1e90630ea37415950bdd3d398e52bbe8379d05c157cf90. 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/CHA012000394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b4cb1182d463fef2dfa5e9e4a89b5e85b0f4d640f4bee66eca7c3de7559246. 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/CHA012000395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfd17714e5097a681ebb4c11633ae4ccd913ecf9421df7471bd235f17c5ce8a. 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/CHA012000396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb50f684b4ce3110c08ae4e8318bf9ded4fbd248b55051a9a72dfc872cc29afe. 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/CHA012000398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91bd7e3fb5c0ff33f9b8aa00d682552534e1745e7ce402dcb8e7cd60cd2741a. 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/CHA012000399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb2de60fa47946e271e4397da1d488c5229e13a6935d8b049f180e1dd0d0d12. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CHA012000401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f4ebb43f14b4c7a0d0b8e22bb32e84ddf374ae6ed785a79f5e4a10b36c13be. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CHA012000402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2031c9e4d9675c3a06b3846da0dce481fbe8b4a325140ffe5e0059fe21f396. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CHA012000403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91fd2cfba1c88251bb74ea1a5522dfb4e292cd5416fde3adb5c88dbbd377ee0c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/CHA012000393.
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 0xd5dc614efccc6d2d8290f736b61a14f428fc5d22c0a0a99174b2e62ac7916dc3. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/CHA012000397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd569c5624dc3acf554f99cb71aceba22ee2da77d2415366d3365dfbfee12defb. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/CHA012000400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65deedae6ebf30b058cf3f3c97e4e145a96e5e452ab2ddbd78d7f94ca64a53f5. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/CHA012000404.
Bastardiser (20 Years Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb510abf07589aefbd8fcefbfaf8dfddacd10b549ade6c988388af0067fbcc4a6. 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/FR6PG1800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4ae6dce648c09f182af00bd539660a75d7aa163a86ed4608a5466e4097ec67. Chain 2 (Bitcoin): anchored in block 957212 (2026-07-08T18:33:44Z), 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/FR6PG1800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311f12037d616a2d9daa6f1ca5a5fad9f28dcce223833f534a9dd3d29cf440af. 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/FR6PG1800083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a481b36cae297a66ed07b53fca28b9af6cd3d5fcf491df090d864e5c6b97b67. 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/FR6PG1800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb884774a1d147915873a86fabb09b231f8d92babf8436b9104a474b26c3b5469. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FR6PG1800079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79278470ecdaab119110d4b7ef7c986835cde7ffe2c127d8c85c23bbaaabba50. 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/CHA012300129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5606841123bd274da75a22a93b252f3db70fdc5b7fcad47fd09be93aad6c75. 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/CHA012300131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4cec65e8e7e87f643272f750b834e88dfd97f5525ffb4fc2d0de923379cff25. 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/CHA012300135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fbc7a3bcfd3f1afee79b46a30fc7342293c9e34612dd35767778ca555d5767. 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/CHA012300136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8b003d8f134a10db5cfdccf5ec35578f3be9cf92422292bed2b370deaf0734. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/CHA012300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c27d634ae25c09dc5ecff763ef70beb06b6ec965bfb4bcaaf39f4da93a28767. 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/CHA012300130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f6d721480cb7cbed7732323da6288c57b1a393e1bf3396631063e527f5f9a4. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/CHA012300132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fe99218f2a213a11dcfd6d61c8fa4873678736da6dce17c4d214863c796aee. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CHA012300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a0349ac9c6a3f3de1695df3074436e2e8a166a87abbb8138b979185be9e298. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/CHA012300134.