Massive Töne is one of the oldest German hip hop groups, founded 1991 in Stuttgart. The four founding members, Schowi (Jean-Christoph Ritter), Ju (João dos Santos), Wasi (Wasi Ntuanoglu) and DJ 5te
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 0xc611848cd46e1ed1b8d9edb8e9120252a2516fe857a7232d88c71e41485bb78c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0fa6084f-75fa-4c25-88f3-24399fcf3f9c.json and https://artists.proofprofile.net/proofs/artist/0fa6084f-75fa-4c25-88f3-24399fcf3f9c.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 0x91db2dea02d399b8893d590e1893539a2d6a7f2c1f0d64eef6dca3278bc56df2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEA610200349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4f65ef5970ff33acf5067506f0340118f7903c4ed77ce6fd34695a1c459bdf. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEA610200332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a3163b95ae369785551ebe1471740e32450fee365d15d35114375fdc97944e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEA619960021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3783b12a1ae7281f38b516a900f955437fc3d4a8b920db842ed06d3f49c7c332. 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/DEE869900368.
Wenn der KolchMob tourt (feat. Massive Töne, Afrob & Emilio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf06d4460fbd07d9709535ca2972077934e74e029f371239c3e22567f849a804. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEE869701546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909139c87b94e0a314fda8f493f3f5719744ce0d41f09f968246a829d8620a14. 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/DEZ651321917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2442a8fc678dab70c979f9c6a00c33bb8b9e7399038e83dbc876ebc9d89e26. 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/US3C60910077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4f65ef5970ff33acf5067506f0340118f7903c4ed77ce6fd34695a1c459bdf. 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/DEA610200332.