Nine-pound Hammer is an American cowpunk band. They were formed in 1985 by vocalist Scott Luallen and guitarist Blaine Cartwright in their hometown of Owensboro, Kentucky. They experienced their initi
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 0xb8e6deb10df6a3dd4d185140b0e2cfaf0a487c986051b64cb082bc97212f1301. 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/966a0145-39f5-433e-993c-40339e7d74fc.json and https://artists.proofprofile.net/proofs/artist/966a0145-39f5-433e-993c-40339e7d74fc.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 0x929675cde36b723473f9ed38850c305d64efe69eabc19084b59f9d18b6350168. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DE2A81010174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e45a58c0bc8cd6067909d6e5238ce3111010b9df8f4704643f1640c01bccc41. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DE2A81010177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe106cd4b068697b59b286453397e798d6a779c46698cacf79546ee85afe22f66. 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/DE2A81010161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc9c072b0b1240c6744e1f58c0ef9b1c1b31f387b8074e09ccf152cbce44fcd. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DE2A81010162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5b1da7b1aa2b1d9df34cae53f2f58435a3ae710d2f63b3a3b350903d4ae5aa. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/DE2A81010163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a46817d5ccc4917feb907fa65b554c17c3b4c06fdc5cf147839f35d501b0fc4. 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/DE2A81010165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cc505479fc86cc78385df7c26d2a1817000cf5778acdf4c44b213cc76cee9a. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:03:43Z), 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/DE2A81010173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dcec2cd57bcfd2371bca93aaa68cf55cf9919abfcfcb90862610b0027c60e2. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:25:11Z), 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/US52Z0410096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8409f12ab731ca4c2458255b9b18308f5f76bc4b4a417e77238d6846093fb19. 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/US52Z0410098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3085178288ecb10803273ac022d0e5b0e57d802c934b226d3e44fd39197c5c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:45:29Z), 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/US52Z0410100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3070d2f2847963a82cb9b6679ac85ff3211fbe533a2797daf40ccac35583bc61. 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/US52Z0410103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d1cd6114c943d0dfaf203a730fe9d4b9463bbf6290923a34315e0790210813. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/US52Z0410104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51b228511fae505db33ceaa2ae4a4a58ff5c492dbfb089524c25babc0bdd0e3. 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/US52Z0510011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8083ac03fcd7f44754349a65c3044efdb99b354360d76384c9e45e17554676c9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US52Z0810018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a12091812cac7dd2d7c290a143c740648409e8e7f0cbaba58f12669665e5cf3. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USY251255461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea089d4b56e9e613c0ade9be92be4e31a60a038089e9ffed2bf0f69a0ab92e3b. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/USY251255464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538cb943bb585fceb8e4751e4d3c67d89b418e77817ac3bb2c0572b2cf0c08d6. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USY251255468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9507ad5b113a3efa79e1f1b4a2ac1d3485906d36aa423e3094048ba6aaa96f35. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/USY251255472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42071fb5356360fe62ba2e66b8a248ae22db64b3c9e71b0f60cae8dcea4bb9d. 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/USY251800093.
Mutants of the Monster: A Tribute to Black Oak Arkansas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a19e2ec2538c7d5ebbc0ac7a0bcc36d8a32e21ac19f95b5a5a655520e360707. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:29:23Z), 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/US52Z1200710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb84e11b559219e95cfac23db5f296dc1918c615d04ca98d4996d63b55a043f. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/US52Z1200711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307ecd28eb98959109818c3b44c56292278b54561cf2f2c37f485f6630f00ef9. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/US52Z1200719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391b8ca7be5057edde6898c7361db23752a0d97b6191e085051bc6b1e81575b2. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:29:45Z), 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/QM6XS2410695.