right|thumb|Panoramic (wrap-around) windshield on a 1959 Edsel Corsair The windshield (American English and Canadian English) or windscreen (Commonwealth English) of an aircraft, car, bus, motorbike,
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 0xba8dd24e6614c91e94c7abebb517e1e5fd43f7280969c017d7e91e463f14df1e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97844e9d-2bc4-427b-88a5-fafae716d6c3.json and https://artists.proofprofile.net/proofs/artist/97844e9d-2bc4-427b-88a5-fafae716d6c3.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 0xf16918231d60e1c9623c4ef79beaf39c3ea5482557d49f804a420b74ddc9e36d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SE5Q51800257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37aab44e49e3e3c986a2b06be305bdefca8eecf00cbf47e92876d30972d88b1a. 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/SE5Q51800416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6638a15cfd790ca3ef227e93646481addd15b308f62cb993c5e7fc8f5119e95e. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SE5Q51800417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a692ca557707c0c758f42edd14719f00df076d128f7a1a42750a22f7f75ad42. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/SE5Q51800421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4816efa6f4c95e53971e22e130bfbf7c9a9c011cd70927e0402914181efd05e3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SE5Q51800422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02632f9de148d59bf970f35f35f19d7ed0798625d75735d1b44a7ee6605a9ae5. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SE5Q51800423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44158491c0f3c86a34a00df98b796e98c545e6375a5f01259fb9c403089ac637. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:03:02Z), 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/SE5Q52201844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00d0b27bf1a11edea1f10f0b8e70532e92c7d9b4811fa8360d6b88787e0d2d5. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:09:19Z), 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/SE5Q52203174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3f1c4915015f3ab4fc16604286f65e7385454e4879cc9ecac0e48badf5f3c2. 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/SE5Q52500441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b5e3a47b5c044ab5eb4a64b0d0f82c1f0b397686d93cb06cad8e38844a8895. 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/SE5Q52501299.
Epidemic Presents: Crates (Blanka Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4ea25d9b4bbe3237ea32c304be2eec082ab3dd1f4bd4317e0c9cda4e3bdb5c. 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/SE5Q51816036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa35f3c0f78c861e20828fa2667e41356178c96a3cc06127d0641a12a852a7c6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/SE5Q51801690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf155178834f05dc0e62908729b9c19c426849b42f6cdb538fb83a6eb53f40a8d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SE5Q51801868.
I'm Thinking about You (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e00416b35942817cf1b44d700e3516d801843ea503cd13d4f2cd78890b6d232. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SE5Q51813591.
Still Got the Vibe (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3068d52c1dc21734067a451b4b0d967ba42fb45b9143be7a8b9687e9c283eb9. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/SE5Q51822489.
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 0xdd107013e0344edd02d30f4805bcddfbd52810ac450c7c3d6b02e0493ef2a445. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/SE5Q51801876.
Epidemic Presents: Crates (Guile Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad989b83314bfdc30b6cca5d07761c2bd89c9a1bf136ea46e6d40172ec4be372. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/SE5Q51815344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c9b36eb62651c57532f9ed2339745d3061c7e1013b100029510330c57e13b5. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/SE5Q51829229.