Hamferð is a Faroese doom metal band from Tórshavn, formed in 2008. History John Egholm (guitar) founded the band in 2008; he called Remi Johannesen (drums) and they started jamming. The first show
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 0x7249c2aa23308308416e274724ac250899ff6641da13d449a6a70b292dfe4b04. 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/8dc44ebe-4f99-4d41-bec6-ee1707171d49.json and https://artists.proofprofile.net/proofs/artist/8dc44ebe-4f99-4d41-bec6-ee1707171d49.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 0x04492076a02af2c6d85a6e3c2d5aafb275849441912d7252fb4d94a01712b268. 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/FR6V81615619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929e0dccf960a75cb2cb642a739cf5629f4a4684ed754301a49d4fef1211d050. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/FR6V82021759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3fdcfcb47b1a56016eb0f25ee7484dca69c3f1d832c081cb4e4e8e11113b7e. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/FR6V82021760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35cae91b3bd24347473252b34969ca1ae9af24ccc745dfd52b09517c9d80d794. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR6V82021761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb368314f4f90f61bf5df9cde6c9e55bf8b02f4473aea11ffb6a047513fb40554. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USMBR1712601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2905ad79fdd7b22124b9106c5146e8eb9897c223883250dd5e19e37027b45d9d. 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/USMBR1712602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf204e7bbde1aaf96e0f30b271cc952452c7cddee4531e30896fbefd49fc4de70. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/USMBR1712603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4acf2049c73c5688ef214910c5c6542d9d0ca8c5f71dad07032211b82b42cf5. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/USMBR1712604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839108c9329d9043d66862481cfaad101eea2a9c1e79827a30dace9d71745ce4. 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/USMBR1712605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6187a57d1e80530acdd101e7d8ad4400996d4478c742f2a914342d0de508c2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USMBR2316057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1690a02d8ee003dd618035d61ab86fae6bc75317352900e16a33f30895b95988. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/USMBR2316058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0ca130b210c69a509044c4b573cc5309944074a9965ca1166eaece1a00d1cc. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/USMBR2316059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3ee1cb4950b97637c5889e12f7beffffb28faeb33552a42c96ce9d4f04c4b8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USMBR2316060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b769a1c94d1092a89763df3d3f6d0206526433c84f0daa6a74d8f02692cb16. 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/USMBR2316061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb0bcdd53b5d14b1f7aef6e88bcb9fd5e2cbd2464c14df0590f6e5c0c3da468. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USMBR2316062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd784b8851c90a6e288f14f7f3431b49f39f147b22dd66a9328fd5c97cfb45bc2. 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/USMBR2316063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd801a5a13113fd75ed4f632c5e3dc20cc80e7aed9476adac017c7da623f1938. 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/USMBR2316064.