Burzum (; ) is a Norwegian music project founded by Varg Vikernes in 1991. Although Burzum never played live performances, it became a staple of the early Norwegian black metal scene and is considered
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 0xa1fbbf377e2587c75c769b0f578d881fc613614c4ab56fa4b1255344704fc3b0. 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/daa3d969-367e-4334-a713-38f74e538d67.json and https://artists.proofprofile.net/proofs/artist/daa3d969-367e-4334-a713-38f74e538d67.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 0xdaac459839bcee9e15651623111eeb4e7b05b12f8bd27322d904e15829e1c5bc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBXGC0803001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb48cd6ce7adc4043f9b86d2c46a6ac57ff7df1a4cf38a9d36765e383c92e995. 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/GBXGC0803002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab35b6c17c39d0f3219f3fa08c45fe660ba36fc86d2ac9c6ed860af9c701ff6. 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/GBXGC0803003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38e28ed0ed0f532d51a0daa4178d660f3f64e6e8095197323c74785ad2c4e47. 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/GBXGC0803006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b34e71cd1c6b03385d53b2dbb389b3f21ef47b38321e1416eaf1cf85534573. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBXGC0803007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b48bdc0018c57fb496459242f8341b6653ba671315ebd733233c8b1bbd31f6. 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/GBXGC0803008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b105f68eb6e5340e75211694afd8b16a6cb390cdaebc47895e0abf9ffd48b2. 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/GBXGC0803010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc869866da57f78b9213b341e231e9abb9821f1ce441c059e8b3e016eb346b80f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBXGC0803012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7362b7948863a5bed88e3901cd4426ada9bfd35a6c4b71c50eadaf97ea073ad9. 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/GBXGC0802002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb404ae1af1a5b7ae678c62268ccaf7ee93a8bd4069d734db00a4653f7189af12. 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/GBXGC0802003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf744f0932e3309db48f01da96b432100d0b7fa6d4178daf58b9c32c989e2b672. 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/GBXGC0802004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8dcfc2e37e5cde360f2e767efd05e0c7d2865339286dd9feb987f811475c98b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBXGC0802005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c85ca91307c01b7f4da5543aead72f53c91a52922e8e35c0974fee9422a80ff. 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/GBXGC0801001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad5e6c7b852a4fd04bd4448da4db71234c198ac8feae42c4697880ba148d0f1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBXGC0801002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb519176e7e705c1b9cf36f15b0d7eaa34aeb13d3b4687a1f968f7cf0c62fdf81. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBXGC0801004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1411d924140836edfb044cb279921e3c873482bd2ec6df062cb69b7f1c4d3f7c. 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/GBXGC0809001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7e5158bddab37f87afd6392db0f4cc637568443b687a2d7321c5870a35fa26. 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/GBXGC0809002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f23e2fdd7b8965a39e0e90d0111d6526aa9f054792fb0d16017c3c157794f09. 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/GBXGC0809003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcc064f44f6ef35200bccaddf38d502235d4d2848dcbdbdac59d2ae2faba44b. 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/GBXGC0809004.
Rundgang Um Die Transzendentale Saule Der Singularitat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064366cef1ef3b22c4d007e460aac215fe6a128d233ae0f1bd7dec593d028763. 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/GBXGC0809005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40abe17882e8dfb5fc0aa6443acce7c3c68e3b620ab39e54c6f3604363b8f646. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBXGC0809006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b9c5852da67676256455cc6115d469e2b0bada48679bf9a4e7113cca2fbced. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GB8KM1000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f06fdf33c1ada35b13004042d6eabcf8c65f20b2c4b848d1e5424d200c8eae9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GB8KM1100802.