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 0xc3dc8447a6d95bec93be6e6795c61efdf73df3e911ebf479212a38211a6de741. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50df0cb6-5017-42a1-bc2c-fb7387747b87.json and https://artists.proofprofile.net/proofs/artist/50df0cb6-5017-42a1-bc2c-fb7387747b87.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 0xdd69dcf471c68e398154dd3f53be9910f0f2cb5dde53a2666819e0632da38d1b. 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/QZADU2012501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a79248f8cad1562ae8df62b7416eb6a1c46490bf14f47ecaabe14786d29240. 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/QZADU2012510.
Resonant Migration (Temple Step Project Ambient Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529146972e4bf18cc6a301526b0f596086b735d8a0da73639fa358a4dc4db821. 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/QZADU2012401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bff0be03ae2363e9778e7cff284325858bf02f3bc52a4cc3be26a03437a8a50. 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/QZADU2012405.
Traversing the Endless Road (Haquin Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0db742daeb693ff8de1c58f466cd89cf6e681b944f4d3c22ae4405bce18da2. 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/QZADU2215001.
Breathing the Mysteries (Lauge Drone Recycle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9360edc7310498815cb8d9afdd66241831584744c1ebcebb63c134ca2f4c4d5. 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/QZADU2215002.
Praise Her, The Fire Keeper (Eternell Turn to Sky Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5426b9354e73bcafbb1f9b9bf083dcfb033ce982e87442df0698afc4e152bb. 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/QZADU2215003.
Dreams Within a Dream (Liquid Bloom Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2497d8e39e57a34f7cbd7acb77a566228ff6e89ad02e7568b565af00e6cf8a65. 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/QZADU2215004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a1a94d80f9d33fc920b84813f4882a334c65a78cfdb753abd87af2f540d17f. 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/QZADU2215005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81934208439d3902c8df4a0eee8f4d73ef82407d894427595eef492834105b72. 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/QZADU2215006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56daa34ba62bf85b678b6ca689f929e092ce75279aeef73249b1beba29ef0a80. 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/QZADU2215007.
Realms of Splendor (Hipnotic Earth Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2cf63e834f7222aeeaea0ea8e777753108b01579925a6686cda5ef4890eb7cb. 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/QZADU2215008.
Closed Eyes in a Dust Storm (Erothyme Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f0ab08279c1106fbb7fce7c06b467b71eec163f2e47f50446ac00632df17ab. 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/QZADU2215009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040c4e00d61de0dea1fe57d28dea21831ec60821ad2762a32545b1ab4a3dec69. 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/QZADU2215010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0bda63b56095f45f71358a292d10a65f70282ff648785ca61418054cca1c7de. 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/USDY42103222.
Essence of Pink Lotus: Sounds for Soothing the Nervous System
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411798fb079a9fd918c723bde6a0a35810bfdd9945d1c8a192ee0a7c633b0786. 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/AUKDT2400547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676c1e4dd30d19c2d2d8a48f275d93a531a5a05f21e571422e900480ef904724. 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/UKR6V2311241.