Such a Surge was a German alternative/rap rock band. The band was formed in Braunschweig, Lower Saxony in 1992 and broke up in 2006.laut.de: laut.de-Biographie: Such A Surge (in German), accessed: 5 O
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 0x669a375cc2fb148d1c9372f18e259b62c49686f3e06e802eb4280c5c4b78ea85. 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/41ed2342-2c03-408c-bde5-22869574660f.json and https://artists.proofprofile.net/proofs/artist/41ed2342-2c03-408c-bde5-22869574660f.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 0xa02a7da974cb8058e12e3a704d037a1fa309a517deb57a3631d416a9cc3a916f. 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/DEE869400318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85b9ca7135dd103ccb71ff7a6745e02f0bcc5faa1984fd9044d8c21b42a37e0. 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/DEE869400319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f73f82da6b83e2a746ce5397fedf74bfad5d234fc88536edc1e8cd1bbd5656a. 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/DEE869400329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f054278f0b8582084b785f5f893621bdf9a4fa85f9aeb38b57dafd261a9be3e. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/DEE869400323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7897bbfd6e755e6aa53b3729178b7a76c5255ce327982cbb175a5f493d12f5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DEE869400324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37513271deab79aec68e20b9d14dc53489b15dcaf6e89951eb2beb6af06247ef. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/DEE869400326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac0bc59a297b9657705c6fd587f1b4db18cb2b530b3e2d5fe6a6266ac807e07. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEE869600530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e2a78aa1b677ed112061c019a75885b9909cfabb1393c01352b1158caf7490. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DEE869600598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc83bd892615d9823270acea707d7ba3c704f283ea79f03c56b18173a052571. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEE869901706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea547de5780bdd9062418731fe96d53235539e1dfba7d3e8546e72ef1f65d1b9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEE869901709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fee4184ea88e811056f95aaa9884992324a681f2bdd0878ede0222d92004a0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEE869901710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407a1a3c32637c0e8363dac32c3434c08fee1784d3268466bde36855213a5563. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEE869900735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172c8a180d1ac01c8ee795843575ef00cc9beb6e7b0a9f2632068ae9fdfa3072. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/DEE869901715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8680f5c6f7fa23518c7a2c771c37c4fe0140002aeb41f63199a9e23bc4eff4cc. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEE860101027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453bee20f3618cc5229bb819ee2238290221537ba6ddc64b3c67426a44d63cd6. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/DEE869700748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95207cd379a2a4e762ad02ecfb25b0a6414a152a220702cd7a3fab328a85bb34. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEE860201261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1475953bc6fc2b971b60b42b45ad94133a5a09e74b92f988c734e521d61ca03. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/DEE860201262.