Susanne Alt (born 1978) is a German jazz saxophone player and composer based in Amsterdam, Netherlands. Biography Susanne Alt was born in Würzburg, Germany, in 1978, to Hans-Joachim and Maria Alt. Ha
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 0xaabd1205c67c2ac7b0ec2ac1bdfc3999e7949fbec07b5c014046d9e66fa47bbb. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2362152e-3a46-430c-aace-966981c5c25a.json and https://artists.proofprofile.net/proofs/artist/2362152e-3a46-430c-aace-966981c5c25a.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 0x2908fc489a1195d0a73c25ac9ac831f21cce4c43209abae4162b50e1f254022a. 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/NLM312300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f9279eed24966f57491b29a56aa7cacb84095cb4f3e63b36074e6d522f9a61. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/NLM312300007.
Sax Damage In NYC - Upper East Side Mix - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ad8da61f406439b2eb1d8b5075569e9cd052381607b214f29d668fc7dfada9. 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/GBKQU2310642.
Sax Damage In NYC - Upper West Side Mix - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ad798f087e71375d2fec477355bf11d3f07e135650d6e17e41fe1a73e06c3b. 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/GBKQU2310643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd160030d47be5a01d882de9c31fa816a6d809c64f2f0bae8f250d695efd0e9b. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBKQU2062931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8967126e9855b3c9cd8d9993bde3f8d7be5c1d76960a6cdd30db404107d86c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLM311900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94626b1065f05643235d40499c9c34b3c7ee1718b7a0f4f5a2d0fb5da082f924. 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/NLM311900004.
Tudo Bem (Maplanka Da Legend & D La Dino Remix)
The Harder We Fight (The Sweeter The Love) (Eric Faria & Jorge Araujo Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72dab275fd3ff019da7986e20892df3a358df819f217c8ed4a93da221e1c3a75. 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/GBKQU1736842.
Wednesday Funk (RocknRolla Soundsystem Remix)
The Harder We Fight (The Sweeter The Love) (Grooveshifters Remix)
Throwback (RocknRolla Soundsystem Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f304a5bb5fe350273497104db6791adc826e6c1c224cccdcfab675e6543f6d. 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/NLM311500020.
Wednesday Funk (The Groove Supplier Remix)
Wednesday Funk - The Groove Supplier Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e32c0b91adbb5db082c8ad09459b34e205d2070eb44dcabf15385219bff720c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLM311500016.
The Harder We Fight (The Sweeter The Love) (Junie Morrison Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0c480ef3373f0e946f05f36dc91b2cacb3dbca3834e97553219c138c36f48f. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ES8831821001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e22ed3d910a419d852a1e1481820407d99132e993444f44dc0006a18db86802. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/ES8831821003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b548da470b724d8362fbae1e38136fb11ec6df458c8f7fda1102d7919938a7a. 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/ES8831821004.
Those Days (Soultekk Funk'O'matic Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f87d042a7e4e679a92b1f4d4d6b6944a06bd99f4d3f78b1ad45a91c9211b4d. 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/ES8831821006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7a073f1ea9fc0d4235e4ccf382a111bfecd12a2f81c347987224e19ebec21f. 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/ES8831811191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859ff9139defde150142d78ed2b3206eba52ce2139709fc12fdbb796ad748aeb. 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/ES8831711171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e05fd0df77dc4a32cc91f4767252a19e74eca6d413d3b2cedc237a821cb38a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBJRX1700119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd86f7fad4b9dc3b84198fcc5773d1336c17c0f0136582093d8d2e22f38a4dc9. 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/ES8831711151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66fbd2c0d6299243c2f56552d2d2acbfd930aaf878910a8bee018ad7e7a26cd. 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/GBKQU1773451.
Koekwaus: The Best of the Euro Cinema Years
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9d6d2e347ca2e90aa86ccee58bc3acdde7995ea0bb8094e00c4f0bec019715. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/NLN1Y1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29008278c45cc69bbbb1c2277f3b9163f07a682498bb0115abb4160b4eb85ce6. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/NLN1Y1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993d4d2db6f152c152bbbe4c0444ef483c4d0d871f737795943fd105809f7f75. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBKQU2062414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df8a6da70df86e509ff2d0f2e86f714dc7957d9d73f2745515ebca21114d0ee. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU2295325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eda4d386d5dbe6e91b1e043df7aff2e816afbed65baf10a3a7f89f197a03a26. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLSF51200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349a981cc67f5d84f833868d661b720dd7289e23c1970ec87ffd1ab84f538fb0. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/GBKQU2295326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac808999c0f0f8ca1cf1c84bb734c8fadb4a46ba53ba634c52a6db26010ff923. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBKQU2050595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62e91f0afa672b06ca92714af43a85b588f061c7ef71e3e01dda261fc125e8d. 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/GBKQU2295328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce12b2de87c686de41f4a7b0768683b06aa393ffa2c1e3bbe26c3beacd26ec94. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/GBLV61727368.