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 0xf5bbda0e98c2920b6519ba2ba45969e7eb14dc4cabc1235218241ea1e4faa0f5. 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/5fc839c8-1ba7-4496-a13c-38d7f9a6e4cf.json and https://artists.proofprofile.net/proofs/artist/5fc839c8-1ba7-4496-a13c-38d7f9a6e4cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jochen Klepper und seine Zeitgenossen (Ja, ich will euch tragen)
Trägst du mich, Herr: Trauer Trost Hoffnung Zuversicht
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 0xf4055d4f33a90a1fbb29d33e5469c75bb8b8d3247d9c2a1dffdd3f35b7b3ac02. 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/DEA550920644.
Feiern & Loben 6 - Zusammen in Jesu Namen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36b42f30efa80bd6982c80077cf777aa1f3c5f7d0c6d67dbd51f12c9a2d50ef. 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/DEA550511166.
Feiern & Loben 5 - Einladung zum Glauben
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9996a426a60e3685568e478122814b909a1bb52007d80e627a589930473148a4. 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/DEA550407905.
Nie, nie, nie vergess ich (Mach die Augen auf)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b58ac2ef51fb72c8385ec7a8866aaad3a70dcf8da3816f8d95550a8ff32344. 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/DEA550407907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a401c34afd2d63f964c484d559de29040e73a92e2abaca64af5d41dac7e782e. 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/DEA550407908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f973aeb751702d13ed8c1fc459d0aad24601fd097f31df80439bfa1cf6b80d. 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/DEA550407910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ff20e97e704f074ca907c2a23a717d597e6f0f9681a365b615934295836dbb. 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/DEA550407916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd5bc5473da729b750712edfbf59ea5666f0f15a8efb9ad44e276f2abe04f4d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEA550406972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b71d62601c7fbb909159705c2ce1c7d692c40f06bbc55f0f72bbb30be2ddd9. 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/DEA550306068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba7a226a3c36c28cec11c2c17a78da29ad1b0a8361496d8c063ac02be33d536. 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/DEA550306069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516e10b5580e36b710013fe9ec6c96f564d56f407feb0ca8d7747569f61724dd. 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/DEA550306071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bd73151a139dc0d39c8c405abb985e9fbb63e4c17f7b6250863d6d4d85f547. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEA550306072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3564600c58fd334f9cab54fceec3e604939e46ce73434f62aceb25a5b87106. 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/DEA550306075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd20b1b2ae1b86a051d14fe609bdbc900c74f87b06517229fdf6fd9e680145c. 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/DEA550306078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63695cfeca0fe1244413e1ea4987cbd75e0a58d9bbafef7272dfa09cd2d00970. 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/DEA550306079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267d72cd15ce15733b585f80c8e4a8ca7ad79043834587702873f70f7a1bf703. 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/DEA550306080.
Lieber Gott, nun lass uns ruhig schlafen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50683c96a85f2bbb753163108a3d7b4cc621a9b12d385e457139ad5c75e91df. 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/DEA550306081.
Feiern & Loben 1 - Singt ein Lied von Gott
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf123199e181e724c4b63fd627a8bdbd4eb98357fbcbc7d6521b85ab8f39231e6. 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/DEA552400156.
Mar(r)yland ... oder bis ans Ende der Welt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ff60e1b53be8f888a4541dbb7639712b54f5aa72fb9058432fc28de4d5b7b8. 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/DEA559900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f5d8c64052d405dc1765ae88dc3121e8140f5d7763b273f4e7fd12fb76c39f. 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/DEA559900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80f2c1efd6c8dc59de617a4aad9fc669015b418e57fa4b58f7b26cb18852ffe. 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/DEA559900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a15444f815881bb47a27e739fff010e06d0186ae93f0ea3414f78dea66c242. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:27:38Z), 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/DEA559900008.
Freude - Instrumentalbearbeitungen beliebter Lieder von Gerhard Schnitter
Licht im Dunkeln - Weihnachtspopratorium