Toxic Narcotic is an American crust punk band from Boston, Massachusetts, United States, who formed in 1989. Though many label them crust or hardcore, they do not self-identify with any one specific s
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 0xda66cc912e3f32320a1549e0a3edaa8b5a8e3df77e5c78f3b42f56152bd5259b. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbc51a9e-2fd9-4ac4-9e2a-3e479b7b1f40.json and https://artists.proofprofile.net/proofs/artist/cbc51a9e-2fd9-4ac4-9e2a-3e479b7b1f40.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 0xfbbd77566be2f73f947a011d4d9a1ed09b303376e79fe4d150b2aa1c62146052. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USAYS0509502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e1c9e0edc47c35f208e31023742f0f6a6c0334248fa5d87dfee427ea2ea10a. 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/USAYS0509503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47d079e4238aa353ab5d927a05be952c783e9a3a43e5e3ffbd1607bee68df6b. 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/USAYS0509504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8d430e61475616c6e59c0393b2f5243d267f0578c6e04745c86b1f6e6edbe8. 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/USA560547657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701d6252df0fd48da93a79d40f6273f3548e585d93b983c44b25d646dbccedd1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USA560547658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed33a53a9d8b9756026bec7fcb28c7f9450f931d83689f684f0ea892c188c16. 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/USA560547659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd784d64c92b44b2302b9f3bd38751a29859dad293538f915dff45496cddef1c7. 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/USA560547660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed694f136656f6004c0d2f1d72b0e00be43fb61ed26c06bfb7ad01d5bf5f7d92. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USA560547661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330f0694e81ffc330e9c03ff5d83d4b180013e50683a0907c9f96d4f2220ee20. 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/USA560547662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af6977dbc7ea5978c86aeab131da9f22edd49ff7ab190d3937654db0777ae5d. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USA560547663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7553b7f3fb59b3f3cc52d3c2961718dd85dab9793ba50b227538d1a722bc611d. 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/USA560547664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2517c67ecbbb8078a5810217d9ee1b69d4351f46667b51e4f64b483f9b1c63b2. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/USA560547665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d23017df8ad8397c04626924748700d548b07e033674366a9005e72f6fbe091. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA560547666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda39a65015e0f6a10071c0f5560604f7d87eb600e62fcd4e952ed25377a97791. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USA560547667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed66722d9c9112ef9d236d8a433450fa73bdefd64b2a0cce2b69ed71d49e7dab. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USA560547668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf985ff583a63675d07f13516603e687f2e3462f504867ce0eec37b87a587fa6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USA560547669.