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 0xd18eb5c931f17dd244e591f7ea30aca871a8ef6c2e0f0199233252baac5b1700. 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/bfde49f2-da2b-454a-a961-962c28891c2e.json and https://artists.proofprofile.net/proofs/artist/bfde49f2-da2b-454a-a961-962c28891c2e.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 0xecb880ba260943f190b2d171d9bde92d92eba3ae1ccdc0532f29e80c491adca9. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USVZF1000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b148978200e73d23bcfe60f7291863ace75f1af161bb6fbe731765c1792723e. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:49:20Z), 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/USVZF1000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d92fdc646f2e92718bab8da15285e161876f3204ebfafa9b218af39c73a652. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:28:44Z), 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/USVZF1400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467a9ab9b05c22033d7134ab21a1cdeaf9df8a07c66c95913b5bc6658f63a965. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:45:19Z), 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/USVZF1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40008af6aa6d46f5697505b4228bfedb34fe9bb98c703722bf0e5014d1dac97. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USVZF1400011.
Simply Falling - Sezer Uysal Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1381b74426d8a797952d6e196d27d7f620665e91bb80f890dfece36eeb89c65a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USVZF1400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2dcca02bf35572221f617bcb70334102c5c21c89954df6d5e7e03dc3e4d574b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USVZF1400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7613931a7e6123d2a28a9d1ab44348730fbfa78f166cd4fad3ce6cb77e1a52b9. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:10:55Z), 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/USVZF1500007.
Simply Falling (Justin Paul Nudisco Remix)
Simply Falling (Dogus Cabakcor Radio Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4a2e55acefc68fb7ca3177e5915003c09984f4832b6f1bebb9f34c96e0f10b. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/QMPU51501854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5be6bb0bdc9b7a598df8015f5ba026e12b6b9dcc99ed83ed6496d74e43bf64c. 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/USVZF1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c4af78c90c2ac1e192e94ecf6e50f1a29d62d6ee88185c582be667e4d42ea0. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:58:13Z), 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/USVZF1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca469b2462519a754a14581832aa7bd1002842ec9fc08834dcd54369f23fda0. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:26:45Z), 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/USVZF1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9593b256e6aa43788ff106f76b34757462d43ca64125d0ba5fa52d1bab4b50. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USVZF1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a4a26fbbcd909e78c8ba7e94bfb08f211aa464c3a05a3f993170e5d7fdf220. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/USVZF1600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc42d1fb4867f8b7a43a1a2b0ad8a6a31fc8fb1f250e965a3ed3b50a19d9fd4e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USVZF1600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03af46d156f7353132a7680e867b79a570d70af74436d38effb7b0c5e3637121. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:01:50Z), 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/USVZF1600013.
Simply Falling (Hakan Akkus Official Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7af658345c7af3437f72a82816495cad3cf40f04202e17fd4f1479913aa244. 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/QZTB22527868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf96da1ade3a8a7993ccf25eee977bd69d8dfeeeb8cda67463f878b7d10c4d9a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTB22575226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa94b7714426435094019d31e80e514bdb17d5605aa2065de1ad23eedf35c34. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QT3F62517264.