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 0xc8b31dfc9e2004f356bb0dc1ea90976bb1957fba4ec8cad0ca9fa69169b107f2. 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/cfc60c59-fb22-4525-a97c-6b3158585fa6.json and https://artists.proofprofile.net/proofs/artist/cfc60c59-fb22-4525-a97c-6b3158585fa6.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 0xfc08d400fe58f42113c775ffd6c87ada579d1425c904699a8c1a90d7f6a984cd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CH7812227651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4904ff2088ba737db4a7ca96bde9f685ece8920999ec414e3ed81f8b70ad1f4. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/CH7812237736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543841acb28c5ab5a9dff90e19b37ace3289fef1e31222327c4e71c3b0c4d2e0. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/CH7812349681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd919a950fea63fcd92e4c5aff73533cf38cf1478696dfdde688bb6d68c5d9c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEZC62356167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c47d33443f53c3b43c193a1fdec6088270183b57a8cb730869dfc382d876cd. 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/DEKF22401124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64227265a45352df96ed58138c193b29e8caf3399b1a7dfcd3aeb2b718e1da91. 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/DECE72402546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64227265a45352df96ed58138c193b29e8caf3399b1a7dfcd3aeb2b718e1da91. 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/DECE72402546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64227265a45352df96ed58138c193b29e8caf3399b1a7dfcd3aeb2b718e1da91. 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/DECE72402546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64227265a45352df96ed58138c193b29e8caf3399b1a7dfcd3aeb2b718e1da91. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DECE72402546.
SHEM ARBE (feat. BERDO, AYJEN & Noor Reaga)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c4e88a7e5df1831fea2b7f569cfe946b3ff4a03b4e73e64dc598832cda5500. 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/DEKF22401939.
RLR2 - Runde 3 - Tag 5: Wenn Welten kollidieren
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c4e88a7e5df1831fea2b7f569cfe946b3ff4a03b4e73e64dc598832cda5500. 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/DEKF22401939.
Sweet Dreams (feat. BERDO, ALECO, Aysar & LANADISAYA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b942b03269e9971224360ff10f06fcf4476aac727c64cee3f54abc171703b86. 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/DEKF22401819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da895044f5cce59d4cae0c004c64b0df34197e0858e2212d3154c9a304f203f. 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/DEKF22401681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64227265a45352df96ed58138c193b29e8caf3399b1a7dfcd3aeb2b718e1da91. 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/DECE72402546.
RLR2 - Runde 3 - Tag 7: Jenseits aller Grenzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53a12ea7900b5c338b65bee792b60a520af04089df234bc3f1fae41fe0229c0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEKF22500132.
RLR2 - Runde 3 - Tag 6: Ein vertrautes Echo - PT. I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6e170b2c13f1234584260d8c3294cc0bcb2e7592f0aa76fe4df6fac696d1b2. 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/DEKF22500023.