Ivar (Old Norse Ívarr) is a Scandinavian masculine given name. Another variant of the name is Iver, which is more common in Norway. The Old Norse name has several possible etymologies. In North Germa
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 0xcf3dbc494d3b447664796e6399096f7d3d653a36e84622be87464301a196c2d5. 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/dd2abc2a-85f6-4afe-95a3-8afe9165fa02.json and https://artists.proofprofile.net/proofs/artist/dd2abc2a-85f6-4afe-95a3-8afe9165fa02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
They Can't Take That Away From Me (Better Than Ever / Aflevering 5 / Live)
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 0x8ed540790bac6a25d5feff4b72c4a6c438019dc68f4fe3791eb5d14927794eb3. 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/NLQ7C1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5d8fc4523cf99b8b2c6af33c8cdec22498a739f9897a10d607777dd0d01b04. 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/NLQ7C1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0135915c2f87663f316eb0dca083894910de10d8df1c67f04fe881ddc4b66339. 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/NLQ7C2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248b0f1775dee9b3c2a0185c2eebbcbc8017ebcfcaacd7e2fffadf7691fc1c08. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NLQ7C2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cdbbeb6eb70ea90566b079128283c44284ceb7d3fb3e6553706e48c360781b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLQ7C2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2875cfc36d0d94652bf4d9d68bce8054f173aa321ac1d0d1e620f34ba2080f78. 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/NLQ7C2000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39223fed92fddf631e2cba895e3ca562df185f4ea1c62a79761079f8e0471bf. 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/NLQ7C2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694c7d145b289cce12405b1a292f9ca337a6d4afef6356962db35b3895dc76b9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLQ7C1800012.
Deep House Fever 03 (The Ideal Electronic Playlist)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76a4ed815a5946580d719e0dc064ea8618955f7ff1bc046591df07ee214bbf8. 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/GBFBC1601438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0c1d2d17b4add70298e44ff1f481ead607925ecdd4a13421aa26f29d369622. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBFBC1601457.
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 0x8fb8675798757b28566eefcc9e970dd47e087ec8ea02e31c8aa3574690f435c2. 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/NLQ7C2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0831d1b3d799b7f4bee18b2f9be9e531a6fe0e361dba9c5113902e9a5329c3. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/NLQ7C2000013.
In Plain Sight - Rodney Hunter Extended Remix Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14619fdb29789d84aa3b25867db81c01c33585c36aa32f7016df623fb535fca5. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/NLQ7C2000059.
I'll Be Loving You - Re-Tide's Disco Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f968902a5e695ff51a1ca2949d7a160fb51ddef872594b6e76fbec3f0af3b32. 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/NLQ7C1800039.