Black Tiger Sex Machine, often abbreviated BTSM, are a Canadian electronic music trio based in Montreal, Quebec. The trio are the label heads for Kannibalen Records, which has signed such artists as K
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 0x1c0ee1d8cf437aa45c282497bd27f617ce22c38a6bc8d0aa48ffd1a44727bc34. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d5e965c-0614-4b25-aec9-c3251efb32b9.json and https://artists.proofprofile.net/proofs/artist/5d5e965c-0614-4b25-aec9-c3251efb32b9.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 0xc30a6db8fff307312e1ee3381c8ea4c99a6b822b51708f0f49d8f5ed3b3f8c6d. 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/CA5KR1037438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959b88ef260fe13021bd6f668f660d76c461463e5251a64bd6f0bee7990e958a. 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/CA5KR0036100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e878a9098b34b459cbcbd4765c0aa6cbbd2c4275126837cf51eab5885b9d1a0. 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/CA5KR0036099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bcb0792356d0feb33637c98bb703036b02a1f72fa357a1713e14cd1b239a7d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CA5KR0022216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5a0847d2af879a8e04511bb2b5599f4c31d1b7a8c8c37ed05f4e65f420aa08. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/CA5KR2198339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523923c94dcd41a7e189d96d5294758a90bda44a5cbea0839ee9b23cd98a38c8. 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/CA5KR2188333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41a3e083ce8e26df103e20858fe9829d1f04a6c0fff00d3af6bc9626c94d3fd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CA5KR2379026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd31864d884a235daac2c761bb89296c19a9fad4679b285b74af13949211b1e. 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/CA5KR2385732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e91a0b8d137769861005b151647203e84d651e8be11074e2d4f11edec22cb8. 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/CA5KR2385733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67eb1a52d271c831d2fa8b3eb909dee7d48ba8f6abc191edc2a8273828330075. 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/CA5KR2385734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b43979421ec5afd213a16f8ffa344066583d05b19efe7e7cdf35e10cbfa420. 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/CA5KR2385735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb44fc457e6ba0532fc25b3ffe5af3c2d6abe50998fa0cc878187c0ddd605c63. 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/CA5KR2355118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b9884d8da4a9c129d754d78e43e9a6af73ea1ffcbc07623edc089f6e5a171c. 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/CA5KR2385736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59da5b206afc41ec1935a83c30b5913f2144611e81e592b3e89c343b936edfcc. 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/CA5KR2337671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c56e4c0449bb4521a88e3d5b1434a1a82e2f22792554ce2f7108bad1ea60e0. 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/CA5KR2385737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5320b83e3bf2ae0739396a2a2de681f56e5c2e3cdfd0eb0ceb53ce8a560446e4. 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/CA5KR2320530.