Eisblume (German for "Frost Flower") was a German pop rock band whose debut album spawned the Top 5 hit single "Eisblumen" in Germany in 2009. History The band was formed in Berlin during 2007 by voc
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 0xe04ce685e3708ec6c05db4c42e957474a377dd87c1078f5deb9fd5410274b7d9. 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/5993dd02-e4e7-446b-bc73-51fd12ba4aa6.json and https://artists.proofprofile.net/proofs/artist/5993dd02-e4e7-446b-bc73-51fd12ba4aa6.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 0x58b85b264dc0c09f2f3153c76469b7886b85750d76d629d6a12dc1064d98b809. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/DEUM70900857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4795690b4b6fd93031be4474580a6f8ede87200320aa4e42430d910cac9d23c2. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/DEUM70900874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ea446d17a551b6bbf277a4330e3d0e454ee844c6857b488866796f8bcf42db. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/DEUM70900858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8335eecc576239d031350f28e5b556fabe14f8b6ebdb90a6a3c922669a9d03ca. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/DEUM70900877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85fb77ede4aeae347678e9fcfa7cbfde8f457c48954bbb9e7449c10f68b8e9b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEUM70900859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe964f24d4d23ef100c3cb6b432c2b069e3c6607d68877ce98e8c526b0d538a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DEUM70900873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cffec2943b2ea9d72918deeb3c95820ace0cfe22827d9c788a47f9bb9cb9a31. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEUM70903346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2969e1a2128eb7fcf91008b49b31cbb1429f4a8eb015c8c72169b35683fffbe3. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/DEUM70903347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2722a069b6f940e73c6413d5bbf03f675551edcf254ba0c9c88409b181d1ac. 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/DEUM70903081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0dcaf890af1ce4043cf32cc5cb19f997485a016ad320619467bb18956800f6c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEUM70900872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57101be336f1967fcd6c5c212546e5dcf2a73e20b797d7c89c35c1d1fe22c433. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/DEUM70901101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc22c63c433a6bfc4e687e8e665ef9b64894990cee0478a00912831db5e54da9. 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/DEUM71103929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258bec566f86af47b0cbf44f45809c398dfb4f58e4df992f5fa09547154c5cc6. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DEUM71103932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf889a878405dbab6bdee935eb87f5f46d314a83fa0154400bcb03ff9575785f0. 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/DEUM71103933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d3a8ea28e71ae60228032fc1b4cc54a699b87c2d9c1fdd68c0fb8a1ce6cadb. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/DEUM71103935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80602b237bdbf7c384d36e2904d694bc7dd6dce66d78f54d0d8ee31e6b3b657. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/DEUM71103936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1a408d832170ed68b4dcd9dfc9b93d9fbae3bff8317da4f146a19278bf2335. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/DEUM71103937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027274830fa318e2c49320d5e76651dc110b5032ea0cae76e493a8471301a4f0. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/DEUM71103938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9e399a60c1d3086f3702c8508b9f6c825875ae5f2cf143a90bb913c21af30e. 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/DEUM71103939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0606f929318b44cffb28f34e28e3f42ed8d7612fd0572df29de3ce92c6a94458. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DEUM71103940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad11d154405f7dd127337f35c0c22a64603237dc1807e46fa50fe8a2e2bb4874. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/DEUM71103941.