The Killigans are an American punk-folk band from Lincoln, Nebraska. Formed in 2004 following a restructuring of the former local Nebraska ska-punk band Settle for Less, they play a mix of punk, rock
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 0x39825aff63311a003b0367cad0695a0fe03b3f3a3bc959b8d2083fc182da85d7. 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/2fb98cb1-c3b6-415c-bbb3-b7b22838e3e4.json and https://artists.proofprofile.net/proofs/artist/2fb98cb1-c3b6-415c-bbb3-b7b22838e3e4.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 0x3afeb21460a26eba651747113e5a701e2eab376ceacdf8c01e8cac154c19c61c. 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/USCGH0715725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65c71897184426a30e0ce155bcc17ef8d87623d7d4e5e71a4aeee30ec423276. 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/USCGH1001685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b16426c4560fb789306f12bd66f602d1dec20ec9c23a5b5b877ad51eb9e36e8. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USCGH1001687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6b310fb6292354c1c4e2ecb1c963b3afe987d0a967cae471b80b65ecddb230. 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/USCGH1001689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc20f79740976f7bee1735d6e7fdf6f840b6101abdca7b0791bc967653199ee7. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USHM91273909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2850d2e6fa9a1976273b22e77ad66d018598f01bd4c8ff5b2ff3b0dc6867265. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/USHM91273912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd499fec84636a707bdef2640b03e354e2c5e5bb177266185199c5c331d6d916d. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/USDY41800092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199405df59c48aacb4b857961b5ddf6e4ec1eb6778e5baecb16b82e4b1084909. 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/USDY41800096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c4ace3fadd323c33dfa4449f91dcdc48e2b1569cb630426fc10bab6eb1a44d. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USDY41800097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211f978ffac2dbec83a0ce37e6fcf6d5ed1e6461832338f53090b85c6efc36dc. 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/USDY41800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cf754dbca748bd44782245e712839563ba70e6666903c98708398b0238dffb. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/USDY41800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10180c31bdd96b15e717cf68adc28d9692be595e792d817b975d02ad13bacef. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USCGJ2292653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3c63ac800ecb0587f90c62cc88fd577008f00896d14c2c83919070123c3683. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USCGJ2292655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6bd505300ecba063cafbd9fe49efff1065d86510ff4ad6a7d9f6ef088fe333. 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/USHM82383507.