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 0x39cc5eec7169e5394e7b4039f6a5897962d5df730f815137e77bf0db90186407. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4cc61ddc-63dd-415d-a754-229bf08db5da.json and https://artists.proofprofile.net/proofs/artist/4cc61ddc-63dd-415d-a754-229bf08db5da.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 0x31f01ff1118d90b9eded84e223f5c48545734dfd7f62cd3bf3899736e4b73b47. 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/QZNWW2256979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93123d13ae8df6a06734b3a48896490447d258b3451cc3ce99d8b233dd141b03. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZMEM2211430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f807dd1b9cd76745c2de9b231e3961b585f475e783763b955dfda973e9f3b9c. 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/QZNWW2256982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8487964c96ba1f06571dbfa77cb64eb9a728a2fa10ebe0ff5d542b07df303710. 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/QZNWW2256983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5dcab1f5a7bcece65de78092f7639139bf1dd8346d5d5a9303a8382ba3c792. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZES72278262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af1f9610f90aefef2c1b9b640ec40d8d065565ca271f1976752816a1d27b087. 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/QZFYZ2295816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd6971e14534c68de35f90cc4cd682c388ba4ca66a7d405aff431e1408851c5. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZES72278263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204f7270eb9bca73ce2ef54e578ab7934bb53887c5de7b43f65efbd8b1fa8912. 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/QZES72278264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1363aa2587a10645bfb39671a0cac0886f8e7b023703bb612abdb206eae1c5d. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZES72278265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6182f1408b4674a0b6a55ec234c37826e2313cd9fc3922ea199b9ff7ebb9d033. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QZES72278267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a94f74047ef0a10905a58bae35bc3263393dc0674edc3e4d3d5eb894e3a519. 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/QZFZ62043635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70bc3d2e2b052f398c06fb1f0ff26af86fb9d665104d77686e30948df7f89644. 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/QZNWT2154114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cc5480523694884c0a710ad9305d83c0e148b139a26bb090683d2c209a2018. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QZTLA2446452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d08ef17e06eb0671c407b2b8fceb556fe46bdda0c6866993a0961ebedf575a1. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZDA72431330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8014b020673e46a9ebf30d8c1534728fa73e6af8cd33ae8b2460ad53f95b6d12. 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/QZRP42148913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272d7bf1d9d2cb2fea48ad1ce6767820491b8de9eb762c87211c587ec0dd2556. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZ9Y21791545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1e7c92fd105faa6a8881610bc69d284da047a94d30bc58ae33c3bf6b150056. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZHN72405783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9388707c50db202b9a2d13e479dfc6aa0a0e67ed519e8234963debf83357eef. 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/QZHN52085659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4a20b8bb2e8cc218cc11608d32bd4b85bf83f424eff85d960c644b8400b537. 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/USL4Q2163639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39a806dfabbb7e3a32e421f904b4769c4c70626784a4ea7f72c066ac2abed32. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USL4Q2163640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7a7754dd871e0a4e826c2c6dc403d8b535bf60eca1f660d1f3a72353fc0e59. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/USL4Q2163641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab42423d27c70fcb13fa2403c3e3e5d0c869ae40562824ce8df857fc2dba27a. 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/USL4Q2163642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe695323add9254ad4f2b5a911ace2c5794bbf1a292ad1728d5a6d3117f9b023d. 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/USL4Q2163643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542baa3f9d7f0b22905b26806655e5c4c04d3038843f18a3c79787535f8f50df. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/USL4Q2163644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196e125dab5f2b0ee6995d44be05639de181a1aac35c49ccccbeaf3653cceedc. 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/USL4Q2163645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5940e782b7a77e793e418eaa87d44959d2129f02335272015f661cccd3944c6b. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/QZDA81843085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a505e1d490809c7d1772d60cc5e897bfee1e2274085837d8dd6ced8cd1380a0. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZDA81843089.
My Love Dedication, Vol. 2: The Way I Feel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bc7a5a4110f7931d9aa8e4f5df2a776296804e93b5b832725ee0eebcb75e0c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TCAFT2187038.
Young Cee & Zig Zag Presents: Forever & Always
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaffb7217f29e56ba041774ca79ea096ea7f47db9dbcc5038d10f48fca9ec626. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/QZRP52175356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee7211dd42e822ff604e6c5f98a4bcea5d5b8567c15dc5d4c1a830044c844fb. 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/QZTAS2298985.