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 0x9dbe4d7a788e38e337dc9a250552f1beff61a515c329f707c4c5a3c777c7d760. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61a39261-e61d-41d3-950f-0270af55f5e3.json and https://artists.proofprofile.net/proofs/artist/61a39261-e61d-41d3-950f-0270af55f5e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kennt ihr Blauland (Das große Familienmusical)
Alles ist bunt - Aus dem Musical "Kennt Ihr Blauland"
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 0xfc50392c64c42fabc9a778b4e93af812cacfd00078dceba16a43411d3631c3f4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DENM10400144.
Kennst Du das Land - Aus dem Musical "Kennt Ihr Blauland"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82db98a55027394bbe9e67c73d9a72576c4da90b9ad2447234bf57f90c4e7fd9. 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/DENM10400145.
Wir sind Fizzli-Puzzlis - Aus dem Musical "Kennt Ihr Blauland"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd22b24357dff4ef25a15a6b23c112b1d1c493e10425c06407c29f5d117c2ccd. 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/CDNM10400146.
Ti-Ta-Tuschel - Aus dem Musical "Kennt Ihr Blauland"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d635fe61130662c4abdde3272ebc0a4e9ea923c28c0cbb70dfc1a0e38a971a. 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/CDNM10400147.
Liebe Kugel - Aus dem Musical "Kennt Ihr Blauland"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd2820c8a4a5965ff431b7ea9da1cc2280918a5772ae9854166d05e85df8c1d. 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/DENM10400148.
Kali-Kala-Kalugel - Aus dem Musical "Kennt Ihr Blauland"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5678ee363373921aca706e23458ab33051b667286c0ef67a73545a29fddb79. 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/DENM10400149.
Ene Mene-Mugel - Aus dem Musical "Kennt Ihr Blauland"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9344258fb42015f05ced0eca8987bd95c957fbacec1ce34923be999d2bf1d5. 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/DENM10400150.
Warum soll ich mich entscheiden - Aus dem Musical "Kennt Ihr Blauland"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f000d02b835c5526a119a20e422a93bb1ac68931d6d1c16bbb98f5b1d72902. 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/DENM10400151.
Lasst uns wieder Freunde sein - Aus dem Musical "Kennt Ihr Blauland"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9643e413e915673164ef9e79030bc0a08f41fe691c57bccd7011937db9fde2f9. 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/DENM10400152.
Dass muss Zauberei sein - Aus dem Musical "Kennt Ihr Blauland"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9355a6450b461b7426f4394053343faf4c53e86e4054621e591bce6204d41739. 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/DENM10400153.
Liebe kann zaubern - Aus dem Musical "Kennt Ihr Blauland"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35803432f82d06cce31a6e0f14d824a4bd2ad23dbb50c02440274c144d34191f. 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/DENM10400154.
Alle Kinder dieser Erde - Aus dem Musical "Kennt Ihr Blauland"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321488c004c0aeaf1b9547ff4551d36452316c149219086d774513fbb0aec575. 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/DENM10400155.