Tackhead (styled TACK>>HEAD, sometimes known as Fats Comet) is an industrial hip-hop group that was most active during the 1980s and early 1990s, and briefly reformed in 2004 for a tour. Their music o
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 0x6aff160b4d04ddf13369414e1a74ebc04c8a30d84404dfd978d057f650a433ce. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/202872c3-e943-40a5-84d2-fe886e19f3fb.json and https://artists.proofprofile.net/proofs/artist/202872c3-e943-40a5-84d2-fe886e19f3fb.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 0x989fd8a6d40b44945010a5324eef4bbcefc9a8a4505fa1d0a3976b58c436dfdb. 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/GBNLN1100277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a9fba76b45103170ced7b767db91763b145e0fadf4e57d40a376560753fa9a. 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/GBNLN1100281.
Tackhead Sound Crash Slash And Mix Adrian Sherwood
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730f40a4f8249ed0789662813dc59e085f0f0b0721095bd92d56437544167c9d. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEH261410901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec5d6d60162f0774e9992c15b07be0a0ea16ee9903a8e90469f3f59835f8189. 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/DEH261410903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedeb5dc7a30e26bef6081f9c15e353894fc5f280b925770eb97aa30862e00541. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/DEH261410923.
Exodus Vs. Black Cinderella Vs. War (Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e51a57e923cf75bda9bef8efba02f4841022122d3d7fa8b16358a319a3a0e05. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/DEH261712113.
Powerstation 2.0 - eMERGENCY heARTS Dance Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3659e2fe96d865a44a6f39a481c28f2c332e076f36c07c7d5027c0783b15c86c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US2392351677.
Powerstation 2.0 (David M. Williams Mix)
Powerstation 2.0 (David M. Williams and scott crow Remixes)
Powerstation 2.0 (scott crow Hard Left Remix)
Powerstation 2.0 (David M. Williams Night Drive Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00876847093b34120215c8d5ef76c6f97d4bc6ff8b3c1c3880f1f39fef98eb84. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GB5P52200157.