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 0x4a2b31b2065b42051248f19751bb720fc1af12ed34131e18169795d1341a35a6. 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/f98622c5-e1ec-43bf-8d61-d0e2b2d4bb07.json and https://artists.proofprofile.net/proofs/artist/f98622c5-e1ec-43bf-8d61-d0e2b2d4bb07.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 0x89d640ba2d5fc8f857d55d54d9c53937c06c5e24351eeff461d6ecb759d73bd7. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZWFG2466595.
Take me to Velaris (inspired by ACOTAR by Sarah J. Maas)
Dark Notes (inspired by Dark Notes by Pam Godwin)
WILD EYES (Inspired by Wild Eyes by Elsie Silver)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa27d58165417e4529af88c3f6f9577f6e3dc3a5212b15b335b1363a818f1f0c. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZWFL2485715.
Orpheus and Eurydice (inspired by The Prince Beyond the Veil by Karina Novak Monsonego)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b89326db19c08f73a33ab098f341b4ba531f9063e055f3e6446ff43211a4840. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZWFM2490684.
Bird in a Cage (Inspired by Light in the Darkness by Seda Ulu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473f37f5367a46468426e01ae19ae9f151691c98ce4004ab379970e16065f2e1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFS2495837.
Folie à deux, Madness shared by two (inspired by Darkly, Madly Duet by Trisha Wolfe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d18d74c7f0a9b87f7d8045edbc5c424d77ac554b33eeb69eda40a913f6b98b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZWFU2402286.
Fireheart (inspired by Throne of Glass) TOG soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7224453341b7fc1c7e9cd2d162e6c62b961e3bb1283d9b67e777cdf5de9d5e33. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QZMEQ2587717.
A Song of Gold (Inspired by The Plated Prisoner Series)