Cassandra Steen (born 9 February 1980) is a German singer who rose to fame as the lead singer of the pop/soul trio Glashaus. After a series of commercially successful releases with the group, she rele
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce84724f3a2f0d529e08592e3365b2c86c8b8db21e91f7736b0f04b67880041. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ebf51c76-a6aa-42d4-8c82-f5014eee3a92.json and https://artists.proofprofile.net/proofs/artist/ebf51c76-a6aa-42d4-8c82-f5014eee3a92.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b98aafb072288d30ffb2be13fa478a50bd9ea42e52ca1dbebe5b0df51f696ca. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEUM70900096.
Eines Tages (feat. Cassandra Steen) - Single Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8c1cd99b6308f692209ec7899290a794cfcbf4314cb2c3dd5aa2e384924767. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEUM70600845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b98aafb072288d30ffb2be13fa478a50bd9ea42e52ca1dbebe5b0df51f696ca. 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/DEUM70900096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bc6fea6385c9dcf6c398e5ee0dd1362e7444bd0d16cf60229ec05829caad72. 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/DEUM71725199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd0dc7b96d86311422da66ff695f6d65ee1b31c973fd4cbf037dddb2c35c1a7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEE869702112.
Am seidenen Faden - Unter die Haut Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4599d29a9bb6805d4898495ddf40157ea2591c5dab375595cd61d06d0ca2f4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEE861300858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4599d29a9bb6805d4898495ddf40157ea2591c5dab375595cd61d06d0ca2f4. 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/DEE861300858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d3fdeeac1262b9219d56c1db3a7009da4ecd7da7a995fc9625f8c0db97205a. 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/DE1CZ2200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657721f57e08a2530b672add34f6b2f6338d9a283ef946805c3348396c0b7328. 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/DE1CZ2200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405cdf406a0865bc2514cc1bd2adcea6db1c2e53f3ed0e6c07213be5c35e29b1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEUM71906710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8563d752666054f5e882dd80d582b7810146d5e204ee73d56110128c88ad6c44. 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/DEUM71906711.
Liebe - Die schönsten deutschsprachigen Liebeslieder & Balladen
La Verdad Y La Vida (Days Before El Camino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f39778f70117d9bcab8104f1762bf8e41874d9b37ef1dce54f29fe5494f92db. 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/CH7812229525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d80ce15b99ded2ec0cd021fbe7aa6494d27a8152c9cbf69601281dc08c77bb0. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:57:12Z), 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/CH7812240152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d382045057be5e0aa48ad3638987496bbed1854c4fb605089193ea3a4e974a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEFZ70800151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4167d167a6988fccfe3ef9db3d0aab347cc402c3e630760e13156df048e92e49. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEUM71601081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1f1e94552776244c480b1b46258437763056c05eaa9af5e016099aa1b1b43a. 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/DESO42000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15815d76ee35e8841c406e905ae1dc4517a22a6bc0b8dc6b542465ec21b6793. 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/DESO42100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f8536ccc05c2c15c63d6f31aae80af6835e4e9e6d9e899dba688379304e1c9. 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/DELZ30900009.
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 0x226de725dc33217395e5e27607d895a13a19ac44639f33610991f51c6a9a2b50. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DE1CZ2300017.