Kampfar is a black metal band from Fredrikstad, Norway. According to their singer, Dolk, their name is an ancient Norse battle cry which means Odin or Wotan. The music of Kampfar can be described as b
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 0x40ce9aee3bd31744097ec8539186104caa5781f57902222eecb19ff66087ed29. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b2decdc-c5aa-4017-9d27-960c4b3f3b07.json and https://artists.proofprofile.net/proofs/artist/7b2decdc-c5aa-4017-9d27-960c4b3f3b07.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 0xd985079423adb7745842bacaf113e59225c5babdabd7d9ec0f62c7d1a8ed18cb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ATN260618902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5472ccfd718d78a2ee1da89bcaa6ac7babb4f96a1860baf29fc6ccd7a5cc2811. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/ATN260618903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9848fcec0e82917c34f785d19de441323a93ada92976b0fbd52e7f8f516595b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ATN260618904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bc69dd16eee6cbdd6174167841d386874e8b74ce90ca2af76e19a1cf45d694. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/ATN260618905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6902b0b99f3fc57e54a5b9159645124b22748a4cf2451708e91628b7f5f90b79. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/ATN260619001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38e1af6214cdc684c57b1669e20c240ee37451fcb09795dc8e35c598db205f3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ATN260619002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb2b58481a97b0d97dc05513623e0e32157bcf8cc15b616d5f9fe787654cb8b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/ATN260618701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b690517e8f08dc1c3670c8729d21f02cbaf8982d10aea94fa4c7cf8a49bb1f. 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/ATN260618703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebee2df636bb9ee30903b98b9a904e499516fe977a73fc46fa37992dd7395755. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ATN260825703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7b68e9c5500629e2440b7f7765b62cff52198a4e63f0f6b4cebdb35927369d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/NOCVC1411020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5932901b28520eb5365ff0b52fd761174f2386327a99f658fe2f8ee8b0edf6f2. 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/NOCVC1411040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0f270a481d0a1919184b4d9efab4f4808831938af658280cfabb092ac63ae0. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/NOCVC1565010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613ff7a1e99fe9f249adf5ee96825c4a22b1c89bde62aa2757e21476d67db079. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/NOCVC1565020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a7f4b542100a48427b443ce4b51ce9c7f26ee38b9549800653a6a52f22056c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NOCVC1565030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0543d39212d9be5c2e6b3bf6393aa53b69f6511b067f4557a636e0a6769d0777. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/NOCVC1945010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671a2a582866fc27904a4c033d28ce71e753b25a7ed24fde4e01f89b78f45968. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NOCVC1945040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9dd9949025076852d2e6745adcdcfe95bae256ea341a789cd1ae87b931e55c. 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/NOCVC1945050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeceac3792ceb3e7f82c3dbb0974d63200489c37bd9a08d9ffdf2498ae29ca0d7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NOCVC1945060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049936a6065e8ab9a1cc769d91f748835124a11e1e82b05f960da2c5f27076c5. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/NOCVC1945070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8db006aeb31a2eadcdd88701a9b5bf5e06c22dc822e56b7e573482cd312233. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NOCVC2125010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338e7c7fb6548d5880e296b0d5fad1927f9c35f2067ba184d93ff771de3f73fd. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/NOCVC2125030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2d505b57821e6082137497d7828b7cc8f34671599e9a099ebb5d305c2f7578. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NOCVC2125040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff5c78174790c4d190bb9bf8ffd3c9d28e8fbd0fee4bdf865ebe760f66540ce. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NOCVC2125050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109371115ecb6d9fb93e226c65ffd903e4a9f7c29bb227608342a43df526a509. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/NOCVC2125060.