Of Monsters and Men is an Icelandic indie folk/rock band formed in Garðabær in 2010. It consists of lead singer and guitarist Nanna Bryndís Hilmarsdóttir, singer and guitarist Ragnar "Raggi" Þórhallss
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 0x09f8aa6553e78297840ae99bea3a2eb3cf097e0b4f2553b84e2cb03ede3bbd89. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/595d067b-603f-4eb6-84be-3e48254a9be4.json and https://artists.proofprofile.net/proofs/artist/595d067b-603f-4eb6-84be-3e48254a9be4.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 0xe5bff0a1ef1ed6cfe92bbed27818932b5f03e0b969a16e950b0cb4cb63786da6. 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/USUM71202066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8b37667a113b730f29a78fac35414e7cd1d687d847d2d64648e713a6631d0c. 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/USUM71119106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445cfede2f4684c14a214032f05c5ad82a0e15566654335aa68b73929c262b43. 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/USUM71119282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30dc0de49fc80858edc053b6ef7334837814deab30b92a793f10037b007c574f. 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/USUG11500395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7ea02541e491273a76f29abc411eed9c2efa5b17914e47dffa97587c1276f7. 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/USUM71202067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c28a18b20c5902e40dd99472f829802bbbb39d278b7de02326adbce5f2e4c03. 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/USUM71202068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970b95ffa37fa8af4bf65c3212c03469aa64c57d0102be6b4623cce31afbd0b2. 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/USUM71202069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda50e60c02a5989e22b6d807a602b6c57ef6cd008820d2a40025957c0cdf310f. 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/USUM71119281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4d8af324d260dd7365bde9d090bad5f9bb4a7a9b4db48402519bc59a912900. 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/USUM71202071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8b37667a113b730f29a78fac35414e7cd1d687d847d2d64648e713a6631d0c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USUM71119106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8b37667a113b730f29a78fac35414e7cd1d687d847d2d64648e713a6631d0c. 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/USUM71119106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c28a18b20c5902e40dd99472f829802bbbb39d278b7de02326adbce5f2e4c03. 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/USUM71202068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7ea02541e491273a76f29abc411eed9c2efa5b17914e47dffa97587c1276f7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USUM71202067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bff0a1ef1ed6cfe92bbed27818932b5f03e0b969a16e950b0cb4cb63786da6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUM71202066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8b37667a113b730f29a78fac35414e7cd1d687d847d2d64648e713a6631d0c. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USUM71119106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bff0a1ef1ed6cfe92bbed27818932b5f03e0b969a16e950b0cb4cb63786da6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USUM71202066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bff0a1ef1ed6cfe92bbed27818932b5f03e0b969a16e950b0cb4cb63786da6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USUM71202066.