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 0x876ce84a926a37185e220289769e3ec5f3f10c750b8884e2acda74fa6154bb39. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99bbbeef-fd6c-44f6-8b3b-12ff261287ab.json and https://artists.proofprofile.net/proofs/artist/99bbbeef-fd6c-44f6-8b3b-12ff261287ab.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 0x70a8e725d1033f593fe8e56742ab0ee98c62aba69f889eec20694567034c5133. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZMEN2498379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0da33f73d8fc7444d80e1086c6279a9df418930868a1eef66535318112504ca. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/QZPLR2371594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615243246bfe83acc6b8aeddc6c4e3213bdc94f3c902130ff13c6c5ce71de067. 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/QZNWQ2390278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169b2c79d819c48afca0c134a0a73e7c41fb99059cc87235e16d8f60c75b0ce2. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZK6P2347003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c513b8c1f7d4ac39b83fa3f8d3c4a4bf226b5a8e8f1b659dacee16c4ba9f9f. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QZFZ22281035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8e9a0b5d27adf520874718d6a27617afb306901f293897f5f58b9e5046a584. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZFYX2294707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca46ccd4e34d1d610f3575ea475d5694368452773a60173a02ff56107605cc17. 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/QZNWT2135185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db82d04a18c8b8d960b1141cc67d70c876addb20e07e6b6b526cb16e6b152af. 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/RUA1D2278523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf09d9d7da1b5d251d9ba18fe90586a69b3d0f13e5f087e6183b4d9341eb270a. 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/RUA1D2278524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c2a2872e5e35c9aba84f1e2746e03dcb79733c8a605cc783969080607f27b4. 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/RUA1D2278530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd725953302261d4649e6c95b73dba19714c9c7be3f952e4883bea2f917e836. 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/RUA1D2278525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79832f7384270eb3717b9a52c91b9af0709f370acf56dc965e2047b1aaf5a101. 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/RUA1D2278531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7ccdab29cfdb483d6b36b6c726f64d7570277a38da0ffa5035636cd9e57a31. 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/RUA1D2278526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2d74f77a963a7d92fca4d56f487503707c5c406f6aa17f47304b185742cf39. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/RUA1D2278527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21630bc07ae6df7f815e0163b8f3fb5afaf7c435237724ea36ae6333c1e05fff. 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/RUA1D2278528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383b5f9c54f513e9e2290e74de0de7810446012e6ebb57e9e0b65aed9b107422. 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/RUA1D2278529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33336519bf3aaa01e6153ec89b7d3ecd0172b6eab4d5a31641c8dd6e1fab6271. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/RUA1D2238723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a34f3316a0aa05826c8123f23dd4523f944dc39511ba84c1e065ea614cfdf9. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QMFMF2319467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbac1592260863f4869fc7be0b57c7ca2521de1863bb1e94dcad37de6a695148. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QMFMF2319468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8e80ab801e00197a44bcabb1b3cbcb433b6f5484628ab1819fa08c5153edad. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMFMF2319469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb1002c72efb38c30348e530cab0a87fc5e3c2f790bf7383ed227b13f38ea5f. 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/QMFMF2319470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf9aea3eecd5b5a0a0d2bd2873bca67dc89058b18a8acc29af4c71e43d24a5c. 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/QMFMF2319471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b6c2d080e16f5f25d05a1d5131306554c8d1006ab8fbe20b5d6a853109a987. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/QMFMF2319472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf34c9d758091ca6eff1e4939d2f68b260afb3ad2b273c2d25c16c7fa9db5e6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMFMF2319473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b3f545ffe81a4252c750e682003c16fe0ddbda0760694a683b93ba9b4f9d7c. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QMFMF2319474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8ba571355447c8dcb67da655c83776ee2267a8e398088ddf7e449807eecd2d. 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/QMFMF2319475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52023d79e4ef011e03b5de56a6d2592d0dfad088b0e74985cf1e31048304ad58. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/QMFMF2319476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5424255da657a81ba97155c3871efe099e4ce4134af343a9d8a7ed64bea29fa8. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/QMFMF2319477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f286e6570b320d774c1329682967c8aad74a547adf92ad9cf5754174ca1f52b. 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/TCAHJ2308798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30675bcfaa46238fffe7d45f89340f376603c3b3a0c8cf9a70a2f70936740f5a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCAHJ2308813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891ce345266a3ef92eea4c7453d46b41161b70081e34c7e2de706bede45b9efd. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCAHJ2308819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96f525c6709d56655a9ee48ee67def35bc710037d7fb5fbcc43d74913184049. 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/QT3EZ2425775.
Wicked Thoughts of a Troubled Individual
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf856f05a7e222251c5825c1669b416b29a321e32bbbf1c1803b2ede104b82fec. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZMHN2365585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1121c284f13c978a7c66f7bca5478268bad0323f9089cd71cceb62a639b22561. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QZTB62245126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251c18feec33b9a6aaaed4a1604d014fd10e931b631c97deb217b22f69a15244. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZTBA2289829.