Frida, Frieda, or Freida may refer to: People and fictional characters Frida (given name), any of several people or characters Frieda (Peanuts), a character in the comic strip Peanuts Frieda (surna
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 0x742349a453d8e02c55a61343667c645dbf3d17afd413de1c0f456368f5b815fc. 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/b7a369da-e558-489a-a712-f9af54ae8423.json and https://artists.proofprofile.net/proofs/artist/b7a369da-e558-489a-a712-f9af54ae8423.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 0xee39cf9ad8e743fc1820e8b80d1c2926a325fd0cc0597da6e709ccd4086d5dcc. 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/SEPQA0751552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b4a72c00b537247c5ed5209fb87844996ef9ac21e4efe2fac7562ee70d9120. 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/SEPQA0751591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe127ffed03b8bec9250bb1a4a530d54b58a8f16760d4a3471f28c72440fbeac2. 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/SEPQA0751662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8574a20da9c10d60b5d164116b5eb9a2d8bd8e2ed91c77b02557abdf43dcd10b. 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/SEPQA0800144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29387effb38c206f80bed2bf66fc554c50c14bd1e8f34524c942a837176a421. 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/SEPQA0751663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeacae36458bb53fe2b7cf2c5a004001d63ed1a98fd0a845b69d57c17400175f3. 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/SEPQA0751670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bda729f80bf6bc09da2fb8e818ba5c8907eae607f8855073db59376ce39a405. 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/SEPQA0751666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496e4ff05637f3363f9bde3b49667f8308d59f5dbb00f079594a5bade8911c7f. 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/SEPQA0751668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93c68873afa8f35d1a779ba5641433d039e52f5f9325e39274faa2948cee876. 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/SEPQA0651463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce7a5ceeea9c1901fe18b6eece9be0b126d4cd367bb7241cab34accb6ef155a. 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/SEPQA0751672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45609e1e7604b5b3d9f0dd9fcbadd65cd25e3248aacf174cdb345fd9a7a6d174. 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/SEPQA0751665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8b75795fc57850e5f5419ba5d62e40265fbaaaf02cfa54458fa78cbf550e88. 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/SEPQA0751667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cfe0b18a580ab06b8267f6371bdb51909a50ee0f1fe57909e6f6c5458b169e. 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/SEVGT1202510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe6fc1bd066beff04c65694168d6645fe687527dca1441573dd3a9163f49c4f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/SEAMA7149090.