Tracktor Bowling was a Russian nu metal band, formed in Moscow in 1996. History The band formed in 1996. In 2000, their demo-track record "Mutatsiya" ("Mutation") gained early success and netted them
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 0xdf46529713b183d6854b57ed97e7b1c739f0eee2084d5a6293a26ad527a0cefa. 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/b7a4ad51-1a95-427b-9743-4f83ea3ec86b.json and https://artists.proofprofile.net/proofs/artist/b7a4ad51-1a95-427b-9743-4f83ea3ec86b.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 0xe12c9490ee141fe5b4b59efd29a5551688071a0309239f419e2918d928a39f34. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/FR6V82566443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23abdfb3dd2f8df498a4a2f82827f6b14fd7dd0dddf48be5a7d2d2bed1f69e52. 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/FR6V82566444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d87c8c362c2e91a77364f5046e04a43637bd11e40f31f78bc259a081cd90c9. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:44:16Z), 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/FR6V82566446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbce8fe0dbfe6af3caf61d6b059ff4ef40ec6b7a1bd1ba1450689f4930313f1d. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:36:18Z), 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/FR6V82566450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f1c5898463c44ed749b263840e27e93696efb2285693d6a7fa1481bc24fbb6. 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/SMRUS0022203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4265a3ed7b63073a4f67d2563bddf7640e0619ba845ef0ad0a51b1a4319b4b74. 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/SMRUS0027936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7be4894f32dec5b098511631d76d017e8c637c0a8ea3ca2c8fccf1c9b90d523. 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/SMRUS0027939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ae7b55baf716a5c6d16350c3312e1209c6af41859cfb5ef683fb74a4d4024d. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:22:17Z), 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/SMRUS0027942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e41fcdfd6dbc7d73021e438f02e250a4685da45859669f8bee951b5fd9f52bc. 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/SMRUS0027945.