Einar is a Scandinavian given name deriving from the Old Norse name Einarr, which according to Guðbrandur Vigfússon is directly connected with the concept of the einherjar, warriors who died in battle
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 0x5b8864011f79fbe5ebccc8f0b7ce441d891bf9a6070b986be421c5f97ba46158. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/703d2c48-6b2b-49ed-9592-89089b190209.json and https://artists.proofprofile.net/proofs/artist/703d2c48-6b2b-49ed-9592-89089b190209.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 0xc83a09ecaf457dec560a695e69248a34cd00a534300fb58f583358b67a5ee7a2. 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/ITB001800302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900d51b276e5ef5268ccd7e10ec38a683d7dccb9abe8330b3242c9afd8b1a518. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/ITB001800304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1d37e79cf3b7858dae57f7f566cad88edd655e124320de99e8d8b15929ea76. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:03:06Z), 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/ITB001800306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1b28e2082e3ef423f4fcc4ffe769a3c3ad76300728577b9458a82e05fc181f. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:19:04Z), 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/ITB001900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cab3d4a6e1b38f3455eee9f5297155f21fcd647caaed4720f6eb73ac44aeb9. 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/ITB001800621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b29ed0f1485c64cfb4187d8481fb749039c69e7bf65b754ad5843e5e935b688. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ITB001900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa912dcadd684c4898b9a372c351007678e58e78128e39f918123b5841f20267. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/ITB001900043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fb0033f732b412cc5659b7609ad5c6f5c44d9966b9a42ea468fe1f826fe186. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ITB001900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a3c196ca44b9304a44eddeea5750158e223db84ead1b47b17d24adbad4b7c0. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/ITB001900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36285bc37bb4fec40475a0d0887462181facfca31f4b8745acd0239496c0116. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ITB001900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcacbf975325664cea59b572427db544a2a27c8475adaa4a4bf50ca537a0d080. 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/ITB001900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e46255a78d8fb11b23f9a330799997ddb4ca9b1f308803e0d48d0d6baa62c4. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ITB001900048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817130df0928688c3f7a8b46eb74377823ae26ddd2f0b3cafe15e78ef7db70f6. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ITB001900049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6815faad71d0fb2505d6d258bd2eda00e69fcb6cc35a379c0aa3edfb4053c5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ITB001900041.