Rognvald or Rögnvald or Rægnald is an Old Norse name (Old Norse Rǫgnvaldr, modern Icelandic Rögnvaldur; in Old English Regenweald and in Old Irish, Middle Irish Ragnall). Notable people with the name
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 0x2d8bbf020f4b3871cc10a144723b3f3899e2057aa886b0b4cd7b11cdd6a0ef00. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5da9eac9-0cc3-4abb-852e-35ea2f1b11b2.json and https://artists.proofprofile.net/proofs/artist/5da9eac9-0cc3-4abb-852e-35ea2f1b11b2.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 0x136b0a9c84802b2efff553d409a235597ec2f9da87f934d0b8b50cb9d239aebf. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/UKTAK1900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36710f75da897f2164f2b0a7446d249be0de564e11020bc3c63269a797872bc. Chain 2 (Bitcoin): anchored in block 957240 (2026-07-09T00:47:38Z), 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/UK6821406533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c7ec0a3adbb1c4cbd8d09cb9c881334512d9dd441c28dac0fec46180fcbb26. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/UK6822123014.
Daisy Takes Two - Meat Beat Manifesto Dub Selection Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8503e5411233ead34cfea38274a10063db71ddb146a082356440d9b6c8468021. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/UK6822123015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4715016e1cce06d3ee3a709c5ad39612f4fd9168e91165db1008a1ff711bf594. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/UK6822123016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cccdc2af60e32f97f15ae678c1431fb74c382c715e2d78ba1c4e137ab5cf2a6. 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/UK6822123017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b0c5fa3b96099d40f8dd046230993c61be4da514fa7cadf455fbdaa0e8f440. 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/UK6822123018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475880be2b87b9cd20c01d2c59e33ffa925a5ae2ab6376ad6e9d3ad5a9e17bf4. 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/UK6822123019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f5779f1f2fc30538b41d6079f64c833167db121be133cddf3957da8a2d950d. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/UK6822123020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b79321cdb18cc62e800984ae82fb676e9c839e256e18ce8523906da91c7b6a. 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/UK6822123021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cc1088678bf5b76bb32ba3ecbd4bfc1c40ea2760e3b45581e8db89caa0a7f1. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/UK6822123022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc693730527d14f3a16b3a86f10b1096c704162444ecdc723a78b1c74a04109. 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/UK6822123023.