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 0x4adbabe6fcd6ed8fbab9984c46721af420df068b9130885ec04f2c925e6d0790. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/557fb945-88db-4134-bf13-d1b23a307110.json and https://artists.proofprofile.net/proofs/artist/557fb945-88db-4134-bf13-d1b23a307110.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Waack Girls (Original Series Soundtrack)
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 0x821f472bd31ea9e8298da727122adc894ed13213748c0b9d350fd71b3651ab1c. 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/INS172412078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc60225a9141911b8fa31ccba49f186c8d3aa0bb75513fea718bd4b779554590. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/INS172412079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fbf6c8dabf2938ebfac2043e1d1e926e8701ea99f81bdf276452b258aa4493. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRX872318414.
Bambai Meri Jaan (Original Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc57aed10bf846a0eb2e90302331846b50987b9c30573abe78c26cd62214876. 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/INS172308461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68dd68cf02666a2f4bb9c77ee9297ca3a01d4e7fb4103e232ba354c74d75a95. 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/INS172308462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088c32ebcd6100073721ad1faf2656985733dd9647a68f1bf0b30b058a38eb75. 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/INS172308463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41c8253718a1e3ec285004759de35fe09f5b405d006afd9dc9c866a287eb78e. 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/INS172308465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd07c8a6bc05ae867ac53c8ed5a3562f677f8406e1cae6e0c728f9f22c07e42. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/INS172308466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36bead3b5f6e72687058cdc07b78f21dae99c4435bd28bc4c8bccb2a98c429b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/INS172308470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9a9c13011ceaab0ca0910a6b7e8257d5dd7be32d380f06e5823a7ebe0d082f. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/INS172308471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0694c74acd27e0086b5b86ba0fc9fe854fcfaee23f265b16ea2b5136a6a3f29. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/INS172308472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e4297061df171551f12ca3ab6710b03d7b6cce1ffe3df6d5ddf2ce2f8bef42. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/INS172308473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388a41573855fa9de34fdde7d4d6e84a44c89778bf853fb2621da26dd9c4ebf3. 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/INS172308476.
Bambai Meri Jaan (Title Track) [From "Bambai Meri Jaan"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc57aed10bf846a0eb2e90302331846b50987b9c30573abe78c26cd62214876. 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/INS172308461.