Ragnhild or Ragnhildr is a Nordic feminine given name, and may refer to: People Ragnhild (saint) (), Swedish saint Ragnhildr, mother of Harald I of Norway Ragnhildr in ríka, daughter of Eric of Ju
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 0xec7ccf5d8a7e68836ea0cd44c623e95fa2b71a491f18cc862c4c14bbd6249d67. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99735416-de45-4376-be50-9197f9521196.json and https://artists.proofprofile.net/proofs/artist/99735416-de45-4376-be50-9197f9521196.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 0x1db5002f4e7ae0b7f11ff37817fd2ad6ce9b19b7dac2684f49fb03a651a06db7. 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/TCACE1562525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2b8bb16c5eed462e6716603012736624408f8db8c858c8017c81f8f0ff6176. 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/TCACE1562614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad459e0391d07940f50b76f0af3025fd9d4765097dcccb5ea25e31145282514. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/TCACE1562627.
Bevar Meg Jesus Dag for Dag (feat. Lewi Bergerud)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f856db91a8c0a491c82f86193cdb656e1d8c5e675466704c8508f45dbc64e1a. 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/TCACE1562659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff0c332e7d864869e1320d47b3b4fb11e227d7684c94e9c18338f65f40ad5e1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCACE1562787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb32845056fc9e1f9cfcea7292f86f5f74d0a198ad38e3097a5cb94a30d619e. 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/TCACE1562812.
Løftene Kan Ikke Svikte (feat. David Andre Østby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d87319dacf5298e865b42a9b8cb5694cac9e587c682e29afc9ee896dd8aba8f. 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/TCACE1562894.
Jeg Vil Heller Ha Jesus (feat. Josefine M. Pettersen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979a166dbc4914d58bb379a5e18f08a5f7f7029bc0f3fdb48c4b22c1864ec8a6. 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/TCACE1562924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e38d431d8589060829d779c211ee4ec2396867d876c6acc8d8f0f588c97357. 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/TCACE1562933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e3a53d2189429af17cab14d0dd4f69303b585fdf6489728165bb85d594dff4. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/TCACE1562977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c83c7ca2deabbc0022d98362f7764fe865917c1b128351bfb84e7c44f766f1. 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/TCACE1563047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcedc3da3e631a433c9d8a1dfbaa7be74aeec0f8154e1f4ab5b4e32ed4c71412. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCACE1563066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c909160d0ee9e2f70204e96fa27621f809bb69714b8fba3493796aed5f748fa. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/TCACE1563005.
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