Sir Richard Grey (1457 – 25 June 1483) was an English knight and the half-brother of King Edward V of England. Early life Richard Grey was the younger son of Sir John Grey of Groby and Elizabeth Wood
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 0x209c02b70bfdc47b8577e243046e872a6897cbda74a32010beff4a2e0d97749d. 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/fb6dbf0f-c4c7-4e10-9688-719d2876cfd9.json and https://artists.proofprofile.net/proofs/artist/fb6dbf0f-c4c7-4e10-9688-719d2876cfd9.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 0x2441d68bf3fa95b2fd244f5d0a15370e5cace943c3b988651160b0ee070f6902. 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/DEPI82506381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b4a6f81428d7536f7480d300e5a3c079e48d4447a6de46939d8c5e769e45a3. 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/DEPI82510224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff72684a92170a86c1c2f43526aed3a90b8562510c72363d957da263570fd070. 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/DEPI82510048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d9c2457505661d85bd3cddb8a26faf6d78f5b3a9bdb7f3c7c27214db9d5ad4. 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/DEPI82504719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06127e7dd516c954e6aa765c9bfb72aeb95d3d444c668958bf0f0179f667c8c. 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/DEPI82504544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc477d6f1cb4efb872430ccd6e2ff16f6df67717e2599717622101079c2d316f4. 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/DEPI82503878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f563a85eccf7cb4a745591143e9e061a59b0ab16be7254ac70af976448e4ba5. 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/DEPI82504828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ad762548406e0401d640abd3a5d6cb0a0b921331b9c106e2feba1aaf41c318. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DEPI82504542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a17a268dd456c53e24ee8e7c1dd11d15414d5b17a7a5767c0a58f90591064a. 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/DEPI82504459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf888fcdb5f1edf37a2afbf6d5a48bbe5af44a264a1f6a82163b87607f912794b. 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/DEPI82503247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b23cd8d242f1a2ba82bebe7a43b6d9f587f004183810bc62d1fa1e16c64e41e. 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/DEPI82503624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57fe3af2e4c70d3e57e5cedd79273dd93b686b3e10af14bef989c765f0b03f5. 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/DEPI82500601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540397a6722d2747a81caabae90366a3bcd51fc8d7dbb8a430cb1be61bf23139. 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/DEPI82502861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0c0c45d3efa4c26477b4d1362cd59c0fca8dbb17dc26dd8cdf403bfad1c610. 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/DEPI82500150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef233a50c797c28ab31f656f01a7257d228ed76b340786b8d0ce301351d3c4c. 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/DEPI82457884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc59ee037118583f555fafcd10d5597f8344fd37dde5fa10339f454866056119. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:38:32Z), 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/DEPI82455451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89830e6c82416ebd159f4f5bbe3294b364c4e462b9671d5fbbe45a417770527e. 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/DEPI82453129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0a7eb7acc99b0e5d80cdfdfd1a0f00a26bc5fe27a7bbad5d6e6f95344872c9. 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/DEPI82448219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d017d415cade1292f503fac97aedeb3d3382bfa54cdaf9074aca4385e99d59. 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/DEPI82439127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530ba0d9597723b334cddca1e7ce2824b3a8df5aefad2022d3191c75620171b9. 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/DEPI82433633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90fe712391ecf198910cc619a8d31f3f404d4554311bcf64a145f182ce1410e. 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/DEPI82432362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2dfe38811ff40097f152e4ae2102f0c0eed97245723e428132bb2f9d2c2cc33. 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/DEPI82312479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6fc2db78519afcacdea23b2e0aba1351c0db881a4b7ae2c07b22010ef3aa81. 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/DEPI82310762.
Sometimes (That's My Shit) - Season23 Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e8248b6e53e994737752e57330d8efe1d49992c22f5d55c97725bd70464f81. 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/DEPI82307678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba425735c1d21b3b18d077ed2a23c6d3411ede6fc462833e92d2306d146fa5fe. 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/DEPI82301895.