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 0x41278af5b389de756717c6822af105a0583e1349ee629b8967b3392b3efbcc13. 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/fe9a0365-b17c-463c-bc23-d92fad4ee071.json and https://artists.proofprofile.net/proofs/artist/fe9a0365-b17c-463c-bc23-d92fad4ee071.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 0x4229906d88405515ea2f775e16ef20c8cdd377b023d3d220ca41bc85e2676713. 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/USE831524677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777da7d887648fbace39ce490a5be481d3ae0ea2d8f7f4b06a300f7598bb99e5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR9W11507617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f661700a536cdd7653ab2df6b90c30822038ac54b2fabecf09741ca7cf5e10. 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/FR9W11507618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ab2fa3721323776a999f9ceecbba3a1431c5783ad9ce4dc376ad025c1f7603. 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/FR9W11507621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77731343c80dc9621b0a401d94a180dc2f090164da4d58466e2d8c1209911c83. 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/QZ22B1859987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7822f9bc5a42fbc55f0c07f90701e4d8b78967d50784cfda24e499af4480ca25. 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/QZ22B1859988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9147bba00cdc4a6cd074adc2da53a08c8b5290c57b9237f2d24aa9e68da37c3b. 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/QZ22B1859989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e07ec8c4ed8485d44345de0c1df609963c5812d4fb87bb831cc9abc0df501db. 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/QZ22B1859990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337d5606d0c6a99fafee8f2d228691b31981ae152c212ebb43d8d57d8d71d028. 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/QZ22B1859991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5876b7d6b4b68ec847d80316c2ee324bda6b2713d99df958f6178d2e5ccb3097. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZ22B1859992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514e8fb70913af8a50f8d277a4757a28810b68a2e95f7385fe2461970a2d994c. 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/QZ22B1859993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38467c9bd047d3caeafef6d658c51bcbab9965bb37df3957bcd02a87bbe36d36. 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/ZZA0G1900939.
Moonlit Missive #8 : ‘Mistress of the Revels’
Moonlit Missive #31: Swifter than the Moon's Sphere
Moonlit Missive #9: 'He Wishes for the Cloths of Heaven'
Moonlit Missive #17: 'The Merry Month of May'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a8bea135d8df976f644636343477c83047bdc565adc184214c7dde1a2f08f4. 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/UKTUY2025855.
Moonlit Missive #30: 'Tenrils of the Vine'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c5311f3eac4e118fa3505a0b139d88d6047179f47ad0ba8a3060f49ce11d88. 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/UKTUY2023052.
Looking for Europe (The Neofolk Compendium)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6c3f5717e8d239a2607b3e40e1098a46985cd35e50fbdddbdc1bd587208a5c. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/DES561599801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bfe4136aeb829b960d00f4f34a624b70c1a4105b8818522409369e4f3c753a. 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/DES561599802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea5b19f85269195fba4dc2b67e3f17df89374b45cce8ef8af3ee078b882a238. 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/DES561599803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8cb34adf03dc1c0ecdfb20c341d902d3ff73f09961accc2da6960db42280c0. 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/DES561599805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd861af82c453e74640805ba7a546b00d040ec03b003f19cbdb1b27ea0039b33. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DES561599810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6489d18e8c82bfea7efb5af8896cd9acddb968729815f9986edbbda6fe9cc26. 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/DES561599813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5680de5c71410597216c2cd5de31c2bfc2517909819d3b9be1ca0752b9e2e2. 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/DES561599819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490c0615f20d02881298aa51a175cabac70d83f315536c66d279d23c82403726. 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/DES561599822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719c42b2af56276a7eacae7d84c58724df2a055201a7d44ffdf4252ae48293f9. 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/DES561599838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb687fa3d9e245dad3cd0a24a070630a4f1319ce0afeabde476f8f95cc41dc8. 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/DEBL61080892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639c0828c4ffdd7b9f8b047f427cb8491bf870e6f3bc18a2fc5efceb6d858d4d. 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/DEBL61080893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a098d350f0397da36812d6cabcd942dc0ab0095ffc8d840e499a9bf9df3872. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEBL61080897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff86dd5f3ba7fa960da2134e59ed0d496876cb78e7101fdc62805dd0f31b1d6. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QZGWW2037740.