Sweet Cobra is an American post-hardcore band from Chicago, Illinois, United States. Members Timothy Botchy Remis – bass and vocals Robert Arthur Lanham Jr. – guitar Jason Gagovski – drums and cym
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 0x123c5cfccf08e89d8d4073e256f2ebdcbcd9aa255c58767bdee9bb826f39a893. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2287cddf-60a3-4a6f-8273-1a815fd0d8b1.json and https://artists.proofprofile.net/proofs/artist/2287cddf-60a3-4a6f-8273-1a815fd0d8b1.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 0x7d986463d847ee7310225c9e91eeb8da6baadcb6cea685da8a58c4658248f666. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USH522204701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b702675dbde7f4b1f35e05deb04883fbd49b548d233a8408a742dfa45d1ce9. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USH522204702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbc24ac92a63c6141152ea3e348876f2cfe9f640eadfa892b515c886ba49099. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USH522204703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070d2496ebe90aab8e45f69370219ef65d3d80b369f33d5f37c6107ddb7be283. 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/USH522204704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9f8fe741b79275939afc571fb9a4411501d2a4d8b8f2749428c5d9af381879. 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/USH522204705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb64f4624694e674265f1168f447c0c5aa45f12cbdd46cc61b1d6a1909a3f77. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USH522204706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f5bfd2cc147bfaa7864c9a480106292644e8ca5c6ec9fd861543d75c08882c. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/USH522204707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff0f644e1d09630e0abe4740901fdc4cb7700a189b5b840d7a40a8b9d63cfe7. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USH522204709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1818b93ff2618749ed2f4b874ae161990eb99e70c4fd67f54ffea5e8f84c8d2d. 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/QM4TX1599028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849128381025f251053018ccfa365efd53297e8a10e74b28fa903e1eda0f8aac. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM4TX1599029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff14d9b727e4d0b14bb5d1af906b6835cccea0afaa18a2e98a50d84822067266. 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/QM4TX1599030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d172ba5fb040a7f1dc1c4738a4659488e01de418b34cc103c0f5b471cc496db. 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/QM4TX1599031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183ef3131a5a6ebb2ee9a3944fd3c5a5d58c5638f8808c8ff9dd8fefd930f5c8. 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/QM4TX1599034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639925e4fdf88006798b38b128b786945504763ebcf2b29bca07eadf3e768d46. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USTCE1054109.