Signal Aout 42, also known as SA42, is a Belgian electronic music band. Initially active in the 1980s, Signal Aout 42 became known for producing music in the EBM and industrial styles of electronic mu
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 0x9466ed3558f6b9b542e076d4708b4dc64000db333201b62a07c999e0c4888879. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4f629c10-86ce-448a-af05-542b889398da.json and https://artists.proofprofile.net/proofs/artist/4f629c10-86ce-448a-af05-542b889398da.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 0x0ee9b50b8649d95683662622cac4158c073cace72142fedeacb51d942a3b3170. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEBZ71100699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2ed2778577414caf4b480863d977a8f9c0a3b93e4d4e97b383580c9cdb1f4a. 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/DEBZ71100710.
Shout It Out - Take Your Ass on the Floor Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e502dbc003a75056e794982d9e82658d55bed13971ed5a4907f8ba52cd9beb. 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/DEBZ71100714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41bb0955d869b9d762a3cc7eeecbf525454605d2fab553e2126535f2bdec43f4. 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/DEBZ71200597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209b70fecc991c29c6f0cab586e56b1d8cf62b4c52e8332e3d07c2c32236d4f0. 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/DEBZ71200601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1602f08ef1552f9e7df46ffa0e7fff4be110bf826f9ddca9d0dd29b37efa0d8f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEBZ71200625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86d4a33673303fe23666ade2e8eecc12d14c4df8022eeb610dd15cc041c044b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEBZ70700084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46ec177917e51a7f830d7202a08c59da30eece644fc9e838d9a93d7e99ba349. 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/FIRAN1800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9deee8c91407f222e79a522d5cf71eb6c17ef6c0e50759e90c00b654022ab20. 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/DEBZ71700235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd973b6675aef5139138ec9f56a0f169f70a067c428dc5a19915e16c2def055ec. 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/DEBZ71400272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45b2ac52fdc4b7147a3c2384801038150978d1775da21716428a50020973e09. 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/DEBZ72300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3b00321b18fdfd5b2708b4c853fec1768925cd1edf3dd1b3d43976db15efc3. 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/DEBZ71800615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db2cdc80ffa71e0def61f7fd8869d0af39cf6b701bfdd7090cd895dcd240162. 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/BEE039000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f08eac0dd230271f2bd8500d4c8ef9fc788d805625794ee1afe6a03fbca79b. 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/BEE038900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9baba907b17d79db6f49bcfffc30c94e87cce9767ed7a7679bfef1db062001c4. 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/BEE038900050.
Time Is Coming... Insurrection By Northern Alliance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0d35169c0513bc94e806780e446890e7814f75734a3823c38fa45267d6ca58. 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/DEBZ70700421.