Parrotfish (named because their mouths resemble a parrot's beak) are a clade (a fundamental grouping in evolutionary biology consisting of a single common ancestor and all of its descendants) of fish
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 0x06072160a3a2b0151f6367964a7f9043bb637431912580f4c69719491f67a786. 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/5cbae59f-b42f-4ba1-8743-1e57d066d578.json and https://artists.proofprofile.net/proofs/artist/5cbae59f-b42f-4ba1-8743-1e57d066d578.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba15f9adb6c6f8e1a6fa31e66883e87d0e3df2437d3768322a4ce88c27e718b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCADF1726233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42feeb8ffcf4056ca7f618ede50a7951facc644a6144542014251f009313c726. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:52:57Z), 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/QZES81853110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48515725b488794029a011b34856009c9a0b58afbb4a3b27c110c97faf6e23e0. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZ93L1962465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5151367ccc1406f495a5271ef92006643b9bd5c1fc9ec48c90543fbff10ae04. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZ93L2059347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e42e3f0ab2bbb3c5853e351a5693042474459a869badf5634db0faec3144ef3. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/GBKPL2296730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e0e23d6033d747af6cead0aef207aeb2cbad681594fa1a9b57210568277461. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBKPL2298614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9497187568c1944bd93afc0e52e366fc6ac1d837c91fb3aebb7066d1827c31. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/CA5KR2273579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94449824f2de2a29b5ec2d3d9ec12f0bb7c708a0c8f5d579cdcdccae4245eb70. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBKPL2298617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb42034202185ec3d5c63bb0222ecaf95bbf59d20b79c1bf70236e9757e26ce. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBKPL2298615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d57034d2cd1df0bea69f09cb4014a34d2dfeca490cc3fa820d210d28a01f36. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CA5KR2365792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3c13c3abfc33c04eb86c1103091030d1c4f2976ab83a2dfe3b4d8e6c405912. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/CA5KR2373141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25303e658160ab15d11cc6ebf6445f51bce2429ffd51ec038c104f12e86c0f9. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:44:20Z), 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/CA5KR2379038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7259fc3b2aab1c209ffffb0bf57a5f5025bafb41babe0be33e4512fd1ba3828. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:02:19Z), 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/QZHN72445572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088532ac708844bd771f6882a42db9cc872eaac5b1b31b7279292f084587384b. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZNWS2499797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301f6ce516b6af3dba6e78e17f90acaccf86006b311505cbe8cae1ba515d9886. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZWFK2414427.