Mitch Thomas Keller (born April 4, 1996) is an American professional baseball pitcher for the Pittsburgh Pirates of Major League Baseball (MLB). He made his MLB debut in 2019 and was an All-Star in 20
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 0xa31d59e3146f02b995ecfc0cbb2f76cb9a5e0df8786cafbcdc97c4c7418e3c0b. 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/c6db93cb-97a3-445c-978c-3c94082fe0f3.json and https://artists.proofprofile.net/proofs/artist/c6db93cb-97a3-445c-978c-3c94082fe0f3.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 0xc67c36b804176ddd1795edcdc424d7958c44a53face9505b7acaa6c0c0e9a270. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:14:26Z), 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/DEAH61200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88ec752c8aeea330f1e83873cf07c36b229653e40ba5b6ce6b179d6808db0f4. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:39:18Z), 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/DEAH61200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d26d7ab5e90d495e6508e2d8b9abcba0ad0f86cf0072122a046bca931a9e6a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEAH61200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a7bef816b83c9967f5bd33fc735fdf265d43c2f8982d8197fc0cd95988158d. 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/DELV41501184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461b133a49bb4cfa57f5982136ef90fc0f807511968344af6d5fa710fdfa50c8. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:24:30Z), 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/DET371800027.
Das kann doch jedem mal passieren - MF-Fox-RMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50056d533147cef7837aa4746f9430f66e33e0e049f00d775edeb86463292c72. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/DEQS91901464.
Steh auf wenn Du fällst (I Promised Myself)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e74c7568a60c1f2c945e87e9ec1749f88d3ed008fa1e9896ec5f20227112ac5. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEQS92001546.
Ich zeig Dir wie es geht (Baby When You're Gone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbad6cc7e8a937e4cc640838b24718ce5261753035e9ce14fb893b89130c55e. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:48:42Z), 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/DEQS92001547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77bd5b8b5cdea75182d55e86ac8eb7a88e51b2731d426e69f564809c15b2810f. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/DEQS92001548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c23623a0db84db80301001b00034ea763ca7ad4ab8e915e86fcf454d3909a8b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEQS92000390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23c95fc1b609f77bf041e9f446e3b2a5ac96096016a66071c2e22f924991f65. 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/DEA652200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c80837f4193f65d1c067a16f8ccb13c047f4fcfc40ad94dcfcdfca0c662ca5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEA652300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a2e6206fadffe1008b41e7f79553612f7e0460e01e4258dbaf5e0a89aa3fb5. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:34:49Z), 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/DEA652400025.
Ole Ole - Denn so geht feiern (Radio Version)
Houston - das ist doch kein Problem (Nur So! Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926c599b23fcdf422c696483fe6d054f39455882b60e63fbf4b58c8b6f1b3007. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEA652500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00de0d48fe166c513d1da791f9efa24d64fbf6152e6588aaeba5f93aa4a5232c. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:30:42Z), 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/DEA652500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638db93d1d5e02682bc554b05b1baf31189d7a342c56990fffafd57f9cbd93d6. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:03:26Z), 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/DEA652500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5cfcbd6e11914cddc46226cdb191e036abe85755549bd15ce8e83bcbe5c0fb. 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/DEA652500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cee766b75a21567a89cf59fbddf468a3e6e05d1ef144f1997da0233f9f4c88f. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/DEA652500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8962889f47b7f6587839a2a7cb23d3f4a201b60ade9ca831283fda46b6125fa3. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:51:45Z), 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/DEA652500037.
Steh auf wenn Du fällst (I promised myself) - Nur So! Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf14ff6d61b5521bf756c7255ad2a3dbe83136ece037077958c94e1ac03eb11. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:46:26Z), 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/DELV42500782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a2e6206fadffe1008b41e7f79553612f7e0460e01e4258dbaf5e0a89aa3fb5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEA652400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c80837f4193f65d1c067a16f8ccb13c047f4fcfc40ad94dcfcdfca0c662ca5. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/DEA652300014.