Tony Williams, better known as Addison Groove (and formerly known as Headhunter), is a Bristolian electronic music artist. Noted for his fusion of styles such as Techno, Jungle, Soul, Juke and Dubstep
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 0x213109dd8f5037f64bd31af716fd1b17140cdaef2a874f6ae434ff1e79efe7b8. 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/7172ee71-5c11-44f8-b3b5-8ed7197847bf.json and https://artists.proofprofile.net/proofs/artist/7172ee71-5c11-44f8-b3b5-8ed7197847bf.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 0xeb4b24ee93c11c3ae857e3a4af343b3ad5fd93a97b4d3d23c54f0adcf553fabb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBKQU2025516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290eeffb4f9a55b4c9f396f3fc65c7909a11e01369ae8920c59fe8db4af5177e. 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/GBKQU2025519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc5b203c32e45ac3ef7dd9135755c1573fa7142cdd1c3b637528ed5f38a84d6. 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/GBKQU2025520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370bddd6ea463d3e42daa346f13cecbbd82dc4b38c31491b5726d72efa35c18d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKQU2025523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd61798a9e0de3e91bb50bf69b429c220ed8c0754aadf00f30c7f640027afe9. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBKQU2025515.
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 0x2b2063608d95a11d3cff8103720b632c3bd722144907d3b79e3350ac5151a4cd. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBKQU2025517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa190fd990a577032775d1b740173cb972be6f3dfffc22a9b0b9100d5a56feb88. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBKQU2025518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59bd9fd05bb9b91469d383bdc6157869256b7ae9deda3f1bb95ab785776b2f92. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEGL61900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b22692568ec9e4da28dbc42144bde5d80dbd2002c36f155f5c5a2ca9f2d11b. 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/DEGL61900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478f0c1d207d7c6824cbf4716287db42c516db8a91d790b87d216f2d1349d530. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEOE81420075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb519509699fd03d6c00a63f3ec709a7d6e208e2a449fda7bbd61852b65a5abd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEOE81320043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ebad81982f31bd98e39972083f1d26dd194ddc859cb7c4a4b5492dc50c7f8a. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DEOE81420079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2953a1681b30823f486aaa1767d096d987751b526499237e059503a987af87. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEOE81420083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b403f4bc59659615be493418787148c861305820ba719706d7763df523edd1d. 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/DEOE81220012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bad87703e22b17084d02fcd6551a97ba42a52921f8d837f3e8c7cace19b1e58. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEOE81220017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695df119451433326941d624afe193946453a71928970f41196759de1adbcf9a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBKQU2321435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fcb6a4a22a94b9a4ffcfd6cd2f8756add856df6166d40ee1e4b4f4647b525aa. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBJX32367401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19492f7ba9c67f6037bc4b27135f75f10a7541185c97da6fe918b04f32145853. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBJX32367402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f85511a20757b4717418760a51054b3427403d4789202cbfd4fe67afef281e. 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/UKN6K2200822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c730fd4b62355635d75e151f72e513a00ebee09c61e75af3da9b9e3de06460. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBKQU2209743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bb01425234c85aa2d0755175b1aae6ffff69657459a8711ec3fd8debbc8212. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBKQU2098295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6bc1d94271b7fb37bd12834d4c03c3bd828704c25335af26c7a06d730c717c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKQU2098296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5098e5bfa2f7827b2000795c7abf2e4b6abae08ca8a5b47ee7533396aa78312f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRX282056137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae367d2ae36133ec834052f18616a11d13a75afe1078a24b55304ed06e7fe87. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRX282056138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fd684153f23fc0912e29d0020b92078c4553fc0bd1c4b2d93a16335d55becd. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/FRX282056136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d49b245ac0f1a3811d40e081447a573a5ad2d8b5413e38c742eeb5da9b1c9c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBLV61916437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dadfa9abc882802929e3835dc1608f21c89f2c2e66d994c13716309c33cff3f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR96X1805813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df4e7afc786a9eb73c4066d11c2066a22449a92fe87595b85eeeae083bcecb4. 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/FR96X1805814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4aa1747e2625e5354408c337fe251093eca5e2f3df87b0e0aad515d2d92bd71. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR96X1784605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff287ba717811941cf44ece03d3c0b25667f7e9e692768bd5583a06e70df5f8. 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/FR10S1780874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1d61695bb19ab6c234ce9bf993b81037228916ea733b38f080a3d197799a48. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR10S1780875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831f07328c90774d2ed10ae54d82b06324ab11eaee316ea4d5601a87d1531bdf. 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/FR10S1780876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ce9e9dfe299c39e446e7ae01f60bb013c26353aa10792d0506bcdd9fd0ef6b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GB9TP1500852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2aa555a99ece612e1298ed5f8b680f3c014059af2cd118c309b54837cb1bef. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GB9TP1500853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f63be307660f38fb12abb240eb81826f248a3f73998e80d69037d52777c4e19. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEOE81420106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91aea3048166f0264b4d3d43637463ab2fe3ba154a32ad9c8be238a8a2b8db4a. 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/DEOE81420107.
I Go Boom / Rashad & Doc Daneeka Remixes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78537f311b3aa7e473006174d5123d7e39b445628a493fff776d339a06ada0bf. 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/GBEXH2100150.
Modeselektor proudly presents Modeselektion, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6900a87acc4f6a291404b9336e9af6c9c620272a550e24ba5f5d6304ada7d70b. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/DEOE81100242.