thumb| The David Orlowsky Trio (previously: Klezmorim or David Orlowsky's Klezmorim) was a German music ensemble founded in 1997 and disbanded in 2019. History The founding members of the Trio incl
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 0x70765a08f386dd6827306cc1ad8e35fe6064730860bb62cf14df24324ba311aa. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9751e39-3a48-42d3-a968-bab3198584c2.json and https://artists.proofprofile.net/proofs/artist/f9751e39-3a48-42d3-a968-bab3198584c2.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 0xa9a47a1db8923223069985eaa472f9bc1c0352a1987d8eea18fd8e04fc14116a. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:07:56Z), 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/DEE860800695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611d4fbdff7f09927d25d84adb5114366990fc26912fa1f311b09806a2fa1ddb. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/DEE860800702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e19e688b493577aa307c204f4856331d03dadb3fc29027580ce191f2ce2f37e. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/DEE861100987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9b2dc97a5758a4be154dbb0a7cf1b0effaec53ae2bb688999dc3c73b20c8f5. 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/DEE861100989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f78b00d76aa16edd40313f7651cecfff14d2d9fa8a60f3a7e1102571c39e74e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEE861100993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63ff50bddd39a8b508e5f5a136101d9e92864cc04cbbed3952b3ead4464c943. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEE861100994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e68118b28ab72f0e92cbfb246098d589c5395aed1f9d11285d3efdd6932d9d0. 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/DEE861100996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657c7f5309b414be30dbbd8f29fd26c4d1358156f906713c9523dd7ef82ae241. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEE861100998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2e7a04d9bfc2c5c071d2569f569e0629b20179353ff62e4a0c73cd5135b2cd. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEE861300546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fa74755c28f6cde23879a096561cef21611266f8cbc5a13dcee9f49dc04fe8. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEE861400414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578f6e9ca685556cee98932112edf8b1439dde496894e5045c956c279fdde74d. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:03:09Z), 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/DEE861400419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8169c3c1ab5007199856e99943c1aae4ad01b736036c2abaf67ed3c445d9f24. 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/DEE861400424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75a6331aa13b5c416563a653431582964e3da6a70d05fba7db551ad0fd38098. 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/DEE861400428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc0b26789136b48fe519c2ebe79c294926850a9395a78121ee1af416f1613d1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEE861700121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d043e21f86a14b685dd6aa1f91613059f679f925e4c3c0f515fcf402424fbf. 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/DEE861700122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ff07cb740b4ecdade4b378b5062161d78c04ec4f7688a6558bef6a7503bc75. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:21:41Z), 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/DEE861700124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95561a717be1e2b8de80514298c7ca7bdcd2726c0bab3a33b9e4687a999bd34. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/DEE861700128.
one last night - Live at Elbphilharmonie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2c284ed0dc9560f16a50188339f82cbdd4014de2bb9c18c69f37997a89ef48. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:00:36Z), 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/DEE861807495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8dee4818ee20b6c587ce79062a0d634ebe2d5bce1e9ecf8a45a172ee231ee8. 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/DEE861100988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7998858d76365504c4ae55c13065927e3880d1249191ccd85a53f8a11b11d67. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEE861100986.
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
Musik zum Entspannen - Klassik zum Träumen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9197ab6ae070ba4727be81c0526caddc05cd679b2665c22dd2a97c8d5bd5c442. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEE861807484.