Bro'Sis was a multicultural R&B/pop group from Germany, which was formed through the TV series Popstars – Du bist mein Traum in 2001. The group comprised the singers Ross Antony, Hila Bronstein, Shaha
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 0xeb28b72f9a726108f9b18ecaa1b79391ec2e804b1989b913d6e1d3a4d15c1f86. 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/61f81c2a-578b-4ffc-b661-298fa69ff94d.json and https://artists.proofprofile.net/proofs/artist/61f81c2a-578b-4ffc-b661-298fa69ff94d.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 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 0xcd088ef3bf982fe79777f04435342e4b24e1169e0d97643055ed677ef1559b10. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/DEN120110227.
Never Forget (Where You Come From) [Speciall Winter Edit.]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b32efff362d454837ec3594f5e233de371b64c1e7016e679403ff8eb321f8ae. 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/DEN120203165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a22e574b257d1c91553f85cd52beb3563c53c852176022e3d6abe57d223b34. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/DEN120203170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c43c028b1153ad167cb8c8027e31138bf5ae0424c3e5fc861aecfa08ae8c7a6. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/DEN120203168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33791dbe1ec740e1d1a7dec5d67ce4146a08e5808bc1c5351b6db22354978979. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DEN120203160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d5b38d13cb1693abeeb5e5eb1f45103e76cc6a5f683fe164d59a40a4096ea3. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DEN120203159.
Never Forget (Where You Come From) [Special Winter Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06575e8bf74a530852dc4a7e118906034c943934209f8a95d29e8f47a0bf4563. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEN120207014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831aec9bae70bb5487d80346e015ad469327e0a131b4323162d95b1c0a617ed9. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/DEN120206124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c205bcf05e790ba9d8c867261d8f0d9e817f1d1afa694f9ec41a4721dfa255d. 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/DEN120203745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225766272e8009351b8da2b59ad3ed70a2c2e9e5a2f88403926a4b83a04bbfdc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEN120203163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc9fd4ed539d7abc453b076764e611bd46da873e1fbb98c3fe6d04349e5b3b5. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/DEN120203158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84ee9781fa89b3a957ec53ea73e3aa2d486e010bb44e02ec127e6269df3ae8e. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/DEN120207158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a11bdfbcb1bf57aa26b7cf65e378e30115c1f0fc5cfbbdf377e6560d0284df9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEN120305907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4d081039c3c2e6fcd513da3cccd0b00270861c79a9c8598cddaceb7578684f. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/DEN120301888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd0b4095b286aa505a7d2e32a86582dfb5b2d7366fbcf0d1fbf9b6b80872bc7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEX920400112.