Mary Roos (born Rosemarie Schwab on 9 January 1949) is a German singer and actress. Biography 1949–1970 Schwab was born in Bingen. At the age of nine, she recorded her first song "Ja die Dicken sin
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 0x9cf77fb1349787a832a44aed351da49e4f2e75268c422697d964ba057b6d7aa9. 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/88eff1d4-6737-40e9-a8ee-fdf10e624896.json and https://artists.proofprofile.net/proofs/artist/88eff1d4-6737-40e9-a8ee-fdf10e624896.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 0xcf6f8d447efa8b89a314b0831254d92c0aae95d49422873806ead75d6bc4ea2b. 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/DEE866700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69cbd9b869befb3ccb3cfb4b20ef81687698b464d32e28e1cfee3dbbacbecff. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/DEE867400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf71b744ca9c42a80707d788909f897dbae362a6e6b8daf209a3817466cdc6ee. 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/DEE867400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83459d4ed7808edd30bcbc33d3b5882e978a611362f60ce33abb0611ddab0c92. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEA769901711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adf409a86b143d82d9107158c70117790b77897ae1763a91918637161948127. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/DEA769901703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9d08419d3652f9cda6468161a2bc216839b759a6547a22b1d8acb36169d649. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEA760406001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6f8d447efa8b89a314b0831254d92c0aae95d49422873806ead75d6bc4ea2b. 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/DEE866700040.
Ich werde geh'n heute Nacht (We Don't Talk Anymore)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7beb0e37cc650513a106a2c6585635626f12ea8bf9c8de381f3467c9173d492e. 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/DEC738000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6207dc0405627b1fc0049bc0e146b32e9b19604764987e0e804587a3e0d23e73. 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/DEC738100029.
TV Friends Forever - Der Original Sound Track: Pinocchio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2790e9d85efe55c39bb0a7129692cd94d26ac44c41980b5bda5eff1b4cae5f6a. 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/DELB80800201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa108680da396d52ba79c779b01e71211cc4f2f2f00f74109b758cad7538e13cf. 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/DELB80800202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a70eeef35f0036c129638cfae4ba93c2de2d9f1d74d125788a2cae179d1ee5. 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/DELB80800203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6de9b89a258568efaf1a96d8ceba74c55a07649dd510e49cc6f0ad311676d58. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:10:28Z), 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/DEA760900203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8be907878ce03e9ae1114fd8e2df7bb12d56579c9485de8780c0a61e52be39. 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/DEA760900214.
Spinner (aus "Sing meinen Song, Vol. 5")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9edc997b09b38db81d714fe9e5c505b03d58de3b80aa4ba9dacb14cfb13f244. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DEUM71801191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd7c4cbb24edadcddeda7e95ce1ba972ae4c37bb0de436c2045481daf87ad8d. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/DEUM71801196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae982674ff04c3b343cbd55f1989a625f3f7dd62c957693b0d3bbd9efb59abc5. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DEC738400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af8938d105697f1b18f735b72590ede17a0e58cdc8bd4b8130b1261cd6d610b. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:06:35Z), 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/DEC738600090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7beb0e37cc650513a106a2c6585635626f12ea8bf9c8de381f3467c9173d492e. 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/DEC738000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9663bfebdd29a7f4006ed1bca7426ced3562610c9963ed9507582f6e7a8e8105. 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/DEC739600408.
Through the Eyes of a Child (aus "Sing meinen Song, Vol. 5")
Ich bin mu-mu-musikalisch - 38 frühe Erfolge
Mary's Hit-Medley: Leider lieb ich Dich immer noch / Schau Dich nicht um / Vorsicht zerbrechlich / Neues Spiel, neue Chance , neues Glück / Einmal um die Welt
Weihnachtsspass Mit Pippi & Friends - TV Friends Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2790e9d85efe55c39bb0a7129692cd94d26ac44c41980b5bda5eff1b4cae5f6a. 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/DELB80800201.
Keine Träne Tut Mir Leid (I Can Lose My Heart Tonight)
20 Jahre Antenne Brandenburg - Oldies & Schlager
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7db67d028b4e8057899eb603cca46ec6d4b6d66e031d453272fac5ec8049773. 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/DEC739600418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74a82a54b0941e62dbe292af95ddacb5473e437d26b346208ec113dcef6ffaf. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DEF067805670.
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
Die Sieger - Das beste aus 40 Jahren Hitparade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c2395ebb09f1a48d405dafbfdb6b7f13a441e0c73edf99b818a063aa7c4061. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DEC738900007.