Anthony Frank Iommi Jr. (; born 19 February 1948) is an English musician. He co-founded the pioneering heavy metal band Black Sabbath in 1968, and was the guitarist, leader, main composer, and only co
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 0x149bc8086428b8d1c57d8cb8b465ff6fa5f7909fe2d8bd2f95ef13bc5cd29a35. 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/cf20ad4b-652b-4f59-8a84-ff0b037b017f.json and https://artists.proofprofile.net/proofs/artist/cf20ad4b-652b-4f59-8a84-ff0b037b017f.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 0xfe28f969dd1df86fd4a576ce07d138a4ca1f68828fe25ece0b5ef2bf65ff821a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZWH32300233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6482d35497fc04379b7e6f8c8ac137b1e41c74da1b17e6b23f1aea0ce72f53b4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSM12204076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50af8142ac406c33983466d0253115cc6791e586394208c418804a7f099dec46. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSM12204067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889f04edb648b6739f83966a2df612e3cdd1a3e2b276b795d8e83e607063b309. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USDY42206824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa475584ea5d01e953fccefecbec19d7f42165eb7c0b83e9b8619d27c50c8c3c. 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/TCAFW2163051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb239473072d28e8b9a24d4d88a22fbe083c6e98ef8f9058bfc2c47b0548a7eb0. 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/USSM12204070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6482d35497fc04379b7e6f8c8ac137b1e41c74da1b17e6b23f1aea0ce72f53b4. 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/USSM12204076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a85ee10dd951f98ac8db4a40e2bf486b038e4c7f58fd304b6b99159355ab78. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USLR50000480.
Iron Man (Black Sabbath) (arr. T. Berens for orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda44afdc634e796c94c919852c8d3976d5d35ee9b236d739ad8cf94b8c4e8dd3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USWBW1300041.
Rock Goes Classical (Symphony Orchestra Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e95a811e5e11aabebd94fe30c1574d1f26b8854404b17880cd9396d1642078e. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/SE68K2300295.
Illusion of Power - 2024 Tony Iommi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc31a0552a19b10b7355eef89ca4b419b85d4de42af41124f325c97b867a40f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USRH12303095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b560f7c01958a8c362a9700ee543ed4d1c6b88b2b0dee57019d83bf378f1d4f. 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/USRH12303096.
Can't Get Close Enough - 2024 Tony Iommi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c5b775bf10b448c8cfc55e8e51c68fdcd97714e66afa40b90656d497ecbbc3. 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/USRH12303097.
Shaking off the Chains - 2024 Tony Iommi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba92251a8e2d053ae47c0ad200f6e087d9913c5cd0f71fef6ce8a90f5198e0c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USRH12303098.
I Won't Cry for You - 2024 Tony Iommi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d96337cc926f91294d701a3fd99e79238cc1f2f1eb5a91239faeaab086a031. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USRH12303099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b7d0e035733969d1dcd4c1fd2dbf26223b10702de252b9b62a6d5b8fedcb4e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USRH12303100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2f18afd59d9e4f4952dceeba187fd6eabe817aef8c10705c2aaa3bbaf45e1b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USRH12303101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cb884b7743c32452eb56e3cea93182ee944cb53459c62970f506825c9139a8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USRH12303102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbb47ca28cf62eb7b3ef6a16326b29d46ad5fca48649eea1f0a7ee6a2e598f8. 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/USRH12303103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9876a73ab667a41c5fadc5a8465351aa349c4929b7f030630ac518af578cc53. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USRH12303104.
Loser Gets It All - 2024 Tony Iommi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912ecb20769cf93ec287e9eb2183c01c9aaa453584bab71459d6a81154dfac36. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USRH12303105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b560f7c01958a8c362a9700ee543ed4d1c6b88b2b0dee57019d83bf378f1d4f. 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/USRH12303096.