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 0x6febf7c2f58c5388a24adc5d13df70dfad48fabff4a5ed783d12f1f1e8a19220. 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/4c02366e-a882-4d7f-bc3c-9e22a0465cdd.json and https://artists.proofprofile.net/proofs/artist/4c02366e-a882-4d7f-bc3c-9e22a0465cdd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
gecgecgec (Remix) [feat. Lil West and Tony Velour]
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 0x5893510cdbfb43165dfa06049fad1d2abf341ccab9396d6cd0ee78775d8939e5. 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/USAT22000186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7a1d47f9d413092c0cf0b009eff8db84f6fcd2b703a0f06e9a1e789fade99d. 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/GBKPL2030684.
comfort noise (Music Inspired by the Motion Picture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a2d1e42f28ea5add702bad8cf157cadfeb29ce4b1e5cc2f84e76fbad436359. 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/USA2P2232929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02116fbe5a03df18f925cf644e22257100685908ddd2c258441fd73a5e32e982. 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/USA2P2205142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02116fbe5a03df18f925cf644e22257100685908ddd2c258441fd73a5e32e982. 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/USA2P2205142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5893510cdbfb43165dfa06049fad1d2abf341ccab9396d6cd0ee78775d8939e5. 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/USAT22000186.
New Hawaii (Feat. DRAM, Tony Velour & Dylan Brady)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28db9a8772874f08a0b98fce7e99966d1ac9a850232f39fcb435875f687e687. 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/USC4R1902668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328211b5e86bd5429c94b409220dfff4b169e9bdd10e25975a83730a1a25c8e5. 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/QZNWQ2002567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ffc7f26a874c4a1762cfb239a154fc7988fa284173d3c75854e09a158708b7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNWQ2002569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebd25b427dcbcd8721998e435855c94562b0a7249a235f59fc27b0d58946629. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZNWQ2002570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580e7c73eec34b96264971afc172a32f68e276b2869b437b82ed8d8e1567f1fa. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/QZNWQ2002571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb3d6ac346fc90cf0e1d9097c687b79b420e84d5694b40608fa22248070b368. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZNWQ2002572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9571d81f473fc498ce96fe67b93e2732c4fdeffc8def881955f00fc45807872f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNWQ2002573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262782779962ce0b7ee1e77863399d53f65d17ec207e66cb4261997cdea831d6. 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/QZNWQ2002574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56de929fdd725f0057edc6172024444ded3b7f48ebc3d5a8532b1dddd8aa0f3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNWQ2002575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d6711ed1deaed7af33965d4b58ad37ca6fe51d7aa23423c814fd49422d42e2. 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/QZNWQ2002576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55704552f56586389e4a08a863c7ff64c45badb568ac3aa7f6878269ed39047. 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/QZNWQ2002577.