Manfredi Romano (born 27 December 1970), known professionally as DJ Tennis, is an Italian electronic dance music DJ, music producer and label owner. Biography Romano first studied computer science; a
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 0x4d3284b9bab69af93d379abbb1f306acc406aa9ad69b7a24e52ecb1bdca7a0d9. 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/e6d7a46b-66d2-48c8-8ea8-40de96929805.json and https://artists.proofprofile.net/proofs/artist/e6d7a46b-66d2-48c8-8ea8-40de96929805.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Clickbait (This Ain't Hollywood) - DJ Tennis Remix
Clickbait (This Ain't Hollywood) [DJ Tennis Remix]
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 0x6240804c6292e09dc088befccad77c6e4690835e31e5fafce56e1ab5af5c9eb9. 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/QMDA62397386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fd3646472f945fae87946ae7f9832efc3e640ba2e72d24236d2366773fa94e. 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/USQY51438394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eaf2eba63e83a4312d099a6b580baf943d83b7346be522feca8e5603b4beeb5. 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/DEU671200176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4614a386a5870d4158f4b9cb1b1d4c265e7b738a21babb189b195156e5cdc52. 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/DETO32100285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4614a386a5870d4158f4b9cb1b1d4c265e7b738a21babb189b195156e5cdc52. 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/DETO32100285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8765e223fc1e85e036ad4476575949b81d9afaeffca850ffba126d3d24b1c19. 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/GBCFB2200681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e257655c7529f78eea301b8881ab1429c8164b8eb44e1504e6f818f2751531. 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/GBCFB2200357.
Don't Be Afraid (feat. Jungle) - DJ Tennis & Carlita Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bdc463244e205375ad3079d1850e184926d51ca9975bb16571e0919ff68459. 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/USZ4V2200163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9c55103805088dd180c2ea7b4030873fdc918c05bf1c50a9dd093e38b64aab. 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/DEG931911155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc28e7996a58c219b3a9a900b0bd77a4dab9590fc119c5972f081e45320d5f2. 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/GBCFB1800277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383dac371f3aebe4680205a5dacc45dc41bfb7145cd4abbc10ecb610709ee63e. 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/GBCFB1800264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383dac371f3aebe4680205a5dacc45dc41bfb7145cd4abbc10ecb610709ee63e. 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/GBCFB1800264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc28e7996a58c219b3a9a900b0bd77a4dab9590fc119c5972f081e45320d5f2. 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/GBCFB1800277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49ac32c8df299e8f09dd89e594de83323de4d82c6448ad176324a8cc11751fa. 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/GBCEL1800564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4973ce5593e9bbc181efba883fad67bd86484aa6b542c54037db52bee219a3. 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/DEU671200177.
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 0x29b22db7a88718854fb91d12ec2300e2c59819e3cbc2f324ac0fc36345381af6. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/DEU671200178.