Skull Fist is a Canadian heavy metal band formed in Toronto. History Formation, Heavier Than Metal and Head of the Pack (2006–2010) Skull Fist was founded in 2006 by guitarist/singer Zach Slaught
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 0xcbed2e7dc4f5edb8faba05a16ee27be1a7906a690df05a786f5063ada93b7291. 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/d99efbbe-a5de-47d0-9809-ad77b6b6422d.json and https://artists.proofprofile.net/proofs/artist/d99efbbe-a5de-47d0-9809-ad77b6b6422d.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 0x45273c6b3f5a63829c5fd5d064946a8e153d0f5c8f0ed7203d74a4b8dc119822. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/CA1ZW0900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4068d70f7185bedc624bb56728820d890f4b59b3cf2682d44b93226cd6b448c. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/CA1ZW0900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c60f01f30b19a6710b5e58577457aae2193d6ff5bbaeda9e95ebe15fac4e99b. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/ATN261101205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf1e18e99ba018322bc874b7cdfdf0600228b79e91fd6f770765c9b05cc2048. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/ATN261101206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940553c695e393f42339cbde74537467902b29e1b2ff20fe6c7ed379f17f25a0. 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/ATN261101207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad16876ee700f918f8d7a20f6404e3f87bd242da6bebe0e118aeb9cc239ec56. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/ATN261101208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7af1903205b3b8a9227c307e6e63db1237169597a755c431760f0168c00a77. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ATN261101209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fa3970771dbf32223069c122caedfb147829ff20699ed36f4ca85fa0b04cf6. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/ATN261101210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a907b26a5fff4133f60961e4ec64bb89f5339e9ccd0771448858d6999bd0e71. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ATN261101211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85dd3bf3d1eda2b61293c77e0c1b4795bfc2d7a3176aedc1c3780e089140a5f0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ATN261404007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea5382cb9de593d08b5b92ecd030407c4af6c62f0ef1ed2abece0328927b91d. 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/ATN261404008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31138873bc62289147c665192b3338a607f9f49708b1999afd7faa0e7d9c5b5. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ATN261404009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755f655064c2ebe15e1b13b07e33fde70508d7a4e47a414821c06c9aa057114e. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/ATN261807202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b58c75b07273a91e9578ff06ca197d2b9aa6517b70e67e056281b23f083da6. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ATN261807203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe369ec5e86ec2c15a6d911b8d41d04c9f7c15cc94ffbc84571e033c7c707278. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:06:42Z), 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/ATN261807204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b2857de7cdf7601a82a5fb99972d6ccb64d3f437f85192a7058e6c985fa4d0. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/ATN261807206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f874d079c2d811471ee76c9330a26a6610e41b837232e6c51f03a020c380824. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ATN261807207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8145b9e11f8322f00c0657b7ff2d1a5e45fef7658c8295872c835f2b1fba5114. 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/ATN261807208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02097134fb5a0883288e6bbf1107962844254ef8d62043da323a08835a70d3a9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DE1AH2204101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b28c103529c9ec7d2d8dd1c8b0d00ffcdd98e667af0d4b1a086e61df2ff1c1. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DE1AH2204103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5514d3e313944091cb8e3d9d995a92bd6dcdfc42b0e6aee948e4f70f7ba9bfb. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/DE1AH2204104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36cbf8ef3adc40d8b5a439fe1351d4d2b0b75e17eadd71c1cc2999d2f49d4e27. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/DE1AH2204105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa845f45911a1c4dc62abe7e03f4d48b70ac9e1f601e3d72af6e2b4616f615914. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:27:11Z), 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/DE1AH2204106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5670f17b004dbbbeac3427c27de58cc534bb1caf68dedbd746f2057c6ce5f3a4. 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/DE1AH2204107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5307d2f9811e16b6cf656ef819307ca0cbdf606883e7b8ff78c74762eb56378a. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/DE1AH2204108.