Anthony George Harris, better known by his stage name President T, is a British grime artist. President T was born in Birmingham, but moved to Tottenham, North London when he was 3 years old. He is kn
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 0x8da439fc6a202d5c0b1168a679cae1830952576ae36d967aabcb6587583efa4e. 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/5b7124fe-bdeb-47e5-9e35-6e0e3c12f6a7.json and https://artists.proofprofile.net/proofs/artist/5b7124fe-bdeb-47e5-9e35-6e0e3c12f6a7.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 0x1a2ad05f53c96cdfb4dcf8ee4741ef60c88c68cefca03b3449c25b89f5298764. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/GBLFP1598709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41206be314ad86744945ac9da038981451bbf1e950de6aa8a484a57bfb918007. 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/GBLFP1598710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9761203475dce4cf90f5883ec6c25efd97eccc7889089670da74d1ad136dab70. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBLFP1598711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff79baecbe77239c95eece11b8d7f087347b104d1b02dbf59c737f9859e46a47. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/GBLFP1598713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe86e194c07591a46f37559105afb2462b57992d146a4d106f6cb0057274e31. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/GBLFP1598714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd154e3bed1210fb9cdaa884d8784980500b85648cf54ca7a53b467c45357b37. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/GBLFP1598715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c434a000e0f02263eaffac4a03d984c7328360386a86ab62ba2193bb988f29e. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:06:08Z), 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/GBLFP1598718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6945ee0176987c9b20eaa424f33feccd9e086930d7ad67f7c9c20628575242ea. 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/GBLFP1711365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d1f9b3119af37e91c32920792fb55a64ac1e830277bc54ddd28873427eb54e. 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/GBLFP1711374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2583574c980a2d4f2547fff4090891253f94228f5db62851a5e0f0758b9991ce. 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/GBLFP1711380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9723b2d41f0d04ffdd402df03a29b6a110e85988f7324d9c8a463dcea7e034df. 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/TCADI1724293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4ea654a3ea66e44f400f05c76ff9280b2a85b614e1f1ba41c8c937f5a05600. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:39:46Z), 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/GBLFP1814538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe24e90b90f46ed31d8f2fa5d8b1c0758bbd273770fb26d8872b3ccb354fe71. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBLFP1814539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109a2a94b36bae8dc4cb1eebc490094fae47092ad0868f1357ac6deae8e788ff. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBLFP1814542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff44a6b1e326e4e421a31a75f70dcd2253a36dd5707d4b5fe48291e57413cca. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAGP2297800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96aaf51a892a292dc8ea76e6beed25d5145e578c0ef787390a189175fb5c7542. 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/TCAEN1920977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1d8b31ccc03ee23e4a649a07494a69db3d48ebe4fb3bb3f26691bc4a10e49b. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/TCAGH2253475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32a5f2e7053b991d4494bd50e13a6025006a70d7c823b8e35baa5c940a89ece. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/TCAHC2365223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed1763f6aaecd045bb8ccf79e2ad3f7e54b9b620047929836a130a7cac62651. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/TCAHE2356197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31dc88cd3d3b1c1e48d0036d903d0a818a3046e160b85c56586fd1cd60cbca1. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:13:33Z), 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/TCAHQ2341719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcc624164550c87d4c7139291bd76974e9cd5edd526ec0382a553f59e06fd94. 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/FR10S2038906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa280130de545a083302b0500c2b3072ec94a380f96213940330dfaa692668d10. 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/GB2DY1800868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b2f6dab6480839f3a05a05c43fed924bbaf718c31e7b3228628420608d30a8. 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/GBLFP1833055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c81f50811800a804c9a600a2cc94b2322700e973b6782520077e3c20a247ad9. 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/GBLFP1716858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106b3e709352cf03314cd8c61d4da0631f8e9e6f8fb337ada0d74bb8cc775b15. 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/GBSXS1400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8375089921a9ad959f6da4e357f52c72857e9f932a30ad9b61c4b435f88b59b. 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/GBY711530184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f19f2ce4923f778f26a4d14dfe2ecb29cc77de79c1737fb4d44412455823c5d. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR96X2306649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc515ee1d73a244f0b2314d972f8454fc6073f7dc157dd3ebff5e7645f4632f83. 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/GBBFF1700040.
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 0x9e1c68941f0b67218c1b972e1626120beadb320ecf27a1d6bb6476667ccbb0ea. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/GBXFY0800196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9502d475ad1b480f80723b05a8cc783bc40636f9b0c43bf885609719f3a18848. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZES92233185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec6fec525e04e4f6011fe879d7e08416e5527c189efbab926c0c1b66f5861c5. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBLFP1908457.