Maria Sophie Weber (1763Clive lists this as an uncertain date, giving no place. The Grove Dictionary gives her birth date and location as: October 1763, in Zell im Wiesental.–1846) was a singer of the
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 0xf3b99ff80ccfa318a51624cc91a5ae0108b395998055e06c55d2341d86552667. 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/36c72bdb-a4c0-4ec5-b6ff-7d32504f21f3.json and https://artists.proofprofile.net/proofs/artist/36c72bdb-a4c0-4ec5-b6ff-7d32504f21f3.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 0x6fe23fdf1d09f2edc47a3cacf8c34762dda18a4eae831d09d8b3c92d80094bcb. 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/ITS782000116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbcaa5774406509647ebcdf735451607b006ae1d7b105e6429097ca0955fd695. 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/ITS782000182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3a5016982921c448ba9dd742c14ea86e28e7db8994a64d4794a15b670021e8. 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/ITS782000183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275fe4661c4e09b56fa84c73ad6939932d6490bded3cfcba6a7c33e32869dafc. 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/ITS781901303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984717f78a047a30a51dd71154e8d966395b80a89c8be5b2400a7eb4670c3956. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/ITS781901213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22eaa7bc0ca5d992b9baa651770b487c9e7e967c29f79341399bd578b076b999. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/ITS782200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af97568bc731160de8ea30c7073bcc8461eb2a50dfed26b53460ddc65c25dcf. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/ITS782300740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167576fc1c63cb4ec03a96ca274743842113866c7e08a9fd1a8910115219fcdb. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ITS782300765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8839b28288d7fe8eb16fa8f20b8feb4e076c36dcb1ed5f6232112bb97cf75c9a. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/ITS782400404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7b73326fcb87050b476500a837917a1b49ee8f4d98c057036a00219dd08ca6. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/ITS782400405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9f2acb665e76bc561c6aacc1fa12ad04d21cef4fead085ddb0eb61f4b07495. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/ITS782400575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372d90198b017ef39bbd0da4393c8c39bfee4fa2d6c001e1da464d4af2ec1a7f. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/ITS782400684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297bc9d7de9279dee34e556a12ef301d97a85be2c84f57c5cf1cdfcf09cbfd4a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ITS782401645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1b7d0f6c5a05e4cc5566d065afdb5c4a16250e382af60ac96da14c72aa9cc8. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/ITS782401728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffc0820caa481c6a1db4441f9571b42eaca5263b6a873b1870de6dc87d8b8e7. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ITS782500812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c60d24b03663b91d2c19964921531624637d4ce7fa61e298e5f0e822bde00b. 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/ITS782501315.
Women for Sleeping Vol.2 : The Most Beautiful Sleeping Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3994ad0c1d294b00f4754b87c954cc317eb81c9c53ecf4f5bc5abcc8b84aa3. 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/ITS781800625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af4f5ab7b7ce9205c2127cf3cd420bc6c80b6c1ddd6b57c712e4183066c3dc0. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ITS781800069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275fe4661c4e09b56fa84c73ad6939932d6490bded3cfcba6a7c33e32869dafc. 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/ITS781901303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad3158e5ecb06328136f616fa580d772b4044240ed735552fb24189e43eb4fc. 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/ITS781901146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe23fdf1d09f2edc47a3cacf8c34762dda18a4eae831d09d8b3c92d80094bcb. 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/ITS782000116.
Musica Relajante para Mascotas : Sueno Tranquilo para Perros y Gatos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3994ad0c1d294b00f4754b87c954cc317eb81c9c53ecf4f5bc5abcc8b84aa3. 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/ITS781800625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806ef22600c3dbc34bab47426dd9fc379905fa47ccc640d0fbf1fb43288cd7d4. 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/ITS781901281.
Women for Sleeping : The Most Beautiful Sleeping Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af4f5ab7b7ce9205c2127cf3cd420bc6c80b6c1ddd6b57c712e4183066c3dc0. 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/ITS781800069.