Tre Mission is a Canadian rapper and record producer,"Tre Mission Taps Wiley, Saukrates, K-os for 'Stigmata'" . Exclaim!, July 3, 2014. known as one of the first North American artists to be associate
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 0x025f7fda561b2b69f70769fe2a995351676c67795c60fb8976e935b25c88dbcb. 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/a4817567-3b40-4ba3-9cac-80241048a026.json and https://artists.proofprofile.net/proofs/artist/a4817567-3b40-4ba3-9cac-80241048a026.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 0x62019eda431468dd786abb16910b2a8401e03f0c714b257525b8237d3bdb923a. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/CAL451675401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2276a1b6b0731c9c742c9e2cd955e27597cd13a89c891ceffe8b1debb8a0229. 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/CAL451892001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547f0dd177a9a1bb833f1f225c91da49d518ee6f0427bf21123cbff0752507cf. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/CAL451892002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefad74a477738acbcd215fc3fd2744fa951a0f1537d155168859714336918dc3. 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/CAL451960201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ff5a72a9afb42d36b374469d51b01deeed435cab8627eece88e3236df86138. 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/CAL451958704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6c4ac87630a6cc4918043851855777452e6c27f220f95de76100ac87fd4de2. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CAL451958708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acb65014b518f879d24b28b8c7ccb821438fe3be9674dc62c5269df9b00ced0. 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/GBCFB1403200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47bc484ae092349648fde4057c28a11482a839657d5c648151bc2e7087b91d7. 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/GBCFB1403201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841da57cdef54cbead65b793092fe5e6bde98b7fd77f9242d170001c5e533113. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBCFB1403202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe025592ec3939d1f4b5f43eb322830af60167d37b3d50124592e6c0cb466f1. 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/GBCFB1403203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d239f415f484743899e92e359399394eb7a07117006cff3e2aa1cf6058b62ea. 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/GBCFB1403204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc017893d526ff1e8b9f6142e9f5a9c710220e2283d178abb9187ffa50fdfc58. 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/GBCFB1403205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb0cf467723c1042b889e461fa845743b5afd0eea3167cec39d4763c3eca6bf. 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/GBCFB1403206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc78e2e5d04088978559492810cf9477ddd3610533de95a74d1ba7846cf6c6be. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBCFB1403207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea55e4378fed60d2b35be2defb38aff909dbfbd088ba8d6240a5d5175e47a3a. 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/GBCFB1403208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d3ef06453a4b141032f9413aad3d7805809fae385a1c6385ba9eb53e803e6f. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/CAION1800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50df6528e52d111c216a7e7764bbb80d9eeb03932aee1b48e71cc8295257b52a. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/TCAEQ2012698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c769b3c670a72c5fc938a53546b46ba7af32537d5d1ca64c7d3eab3b7c2ed1. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/GBEU71600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f3793a677d261c1fa8068de6705213d02519a8e82f6f0ffc9a558a5ff7b7ec. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAL451672201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08108d19c39763c965a50f7cdaf1f535d37ed5bede6da4e0b5ff8d77a1e09bf. 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/CAL451567701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b88bf2ba437f921938d4c5307c5dd2b7a67fb1088acc6f059f3130624270af0. 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/GBCFB1403215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47bc484ae092349648fde4057c28a11482a839657d5c648151bc2e7087b91d7. 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/GBCFB1403201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94fd5d457009f394b9d8a35d1e066f7e90565dfe7ced7e63ff838fd5cde385e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/TCAAU1176054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7438d7b7a6ee5447690462e63ce80d5829faecd9294b1f465d4f3c58e7d71651. 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/UKJDV1700292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f52d3fbd57894e0a463d70330afa069497e8e9e2f2899edb23e9521b8217d52. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GBUDY1300707.