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 0x00dd2e432473c8bb8e46a0a0f239cd320ba580f46956d8ac2a272892ce126b85. 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/1c372541-31a7-4b30-9151-7083481a451d.json and https://artists.proofprofile.net/proofs/artist/1c372541-31a7-4b30-9151-7083481a451d.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 0x96112cba45ec6eb53a3e63a3ebf09eff89bd608879ba6d0b626be295193f7d8f. 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/GB2LD1900153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014e638329b4bcd009ecb6652fcd95b5857bbf989492e1e91a9ce6d77a881c50. 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/NLCK42214005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5f593024fee035eb0b3282fbd43c79b827df088744e9942cf3a60520076da5. 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/NLCK42406501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1517de3897716dbf62d896f51fd6ef23d32256ca498ced5ad8025780d5b175f. 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/GB8KE1952819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edc5bd434952c110762fbca47b28334ce84e8bb86b2664fa4a051a4f9313280. 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/DGA0H2373599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40df2b8ae9d28a8d1e0f582e8656078ed129010e7e5e56ca8492bb621853e91c. 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/DGA0L2316839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34c5ec33cee24873e87f8caf7c9ef1af9b0c78c4253ad3d8b552273b117fa8f. 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/NLCK42216055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bcdf47499d08c31db1cf5c8cbf0453b9984207adf3035881665967030ffcb6. 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/NLCK42211079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb4523cd68c6de48b07ca7344711c6ff29b27ff485bfa7bc399b9dbd0d47e4a. 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/DGA0L2316840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4eca5ce39e9ba90ca87df60f15b9e2c1315572c0d6171c21d46da192acb01a. 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/DGA0L2316842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2856eed855a289326a848f38c05d26c4c335f2601fac44243ff472007c050427. 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/NLCK42216054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8f904ea911fde09194de04ae1876455401a5e5f8c45affcf8ca9b4c9bdca42. 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/DGA0L2316843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5f593024fee035eb0b3282fbd43c79b827df088744e9942cf3a60520076da5. 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/NLCK42406501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40df2b8ae9d28a8d1e0f582e8656078ed129010e7e5e56ca8492bb621853e91c. 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/DGA0L2316839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b2a4864c10e1802f933a86c075730595a6a5aeb8bcacd0f74d6af389c4c60c. 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/GB8KE1954314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb488e5e304531af03d856e6f7116bcde21c2ccca80fef0258b3a3a687d57048. 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/GB8KE1954315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c9a0e1404f5eed4f1c94a819b84b548097c161344d5e7d909b99bcaa4c59b9. 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/GB8KE1852821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74ef52e3ec6207a2b8bab75b0e370ec9a257758b84d224b5bd2a379702cc5ff. 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/GB8KE1852822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ea644873ff7482a13b918690de69c82be667ffb9fe86fc0081e4284e150587. 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/GB8KE1855880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b877365df83f4fae1b44db2f33a01882f67faeb311b95ee2340cfee7c4aaf14. 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/GB8KE1755180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2621e2d04818688cb125dcdaa6bf1d4851ede010d9acddbe0f5519b32b2a98dd. 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/USKO12000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090d21763013fee9ba89b4dd41147f4d7a3ca574caccd874d488a4c9e0d74938. 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/USKO12000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204d45b196ae10c9413b0ee1d1fda38546ff79a894b70165cc612845d430feae. 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/USKO12000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e4f3fdf6937948c739de7cc37d672e1f94f893066f8706170b8e834594143a. 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/USKO12000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf54c9bf9c6d0be89b6060d8f11cd511521fa06ae056bad24d04d3ec770bd08d. 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/USKO12000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f60af9e9435101103634936e7a42f336d308e15f45560fb6a8667a58fac52c9. 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/USKO12000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9abb1821966cd825eecc7241112a332f5abb03553cdf820145e23fa0200ba75. 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/USQY51723787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6964ff939fbeb508f28a564722ea423586b2ed9e5f0ecc17a96892681f27f9. 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/QZNWY2067089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14d6868afb32f323c2c4116a33e8b9c512d61cf1e4d8616ab874d1cd64b5386. 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/NLCK41067782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84b1025496e54de0dda92691e0b09694155027a7f03dbc60b521df5613e5bd6. 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/NLCK41067783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7a5e51f8e51409784d84dfbff63aa1bb0aa4c5444aeae7641af5c7f308462f. 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/NLCK41051597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f409990271b79c4f97ff90ac71dfeccd36bbbf45c8a5879db7ca47052d535f6. 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/GB8KE1850354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651a6290d3c5c481bce3f1b27428d48b388762c6d0bc5a1fe439428fd85f065f. 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/GB8KE1850355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb471e81cde3ee1f657408f0d2110e30bf9efe13d3d2541874fd457fb09faa63. 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/GB8KE1850357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326895721a42680df2bfd009c8673e96409e2753e6e3e8f8d1d592280191c79a. 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/USQY51772742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a95039743e9e82a51546db231d8e20ae35b73a2dddde370db679e5eb6234e9. 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/USQY51772743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344b594b9102cc1f2898367742f981c58dfa30241c30243c4cc95939e257e89e. 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/DGA0H2482419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd516c41038e33a12d47e842d6b7af6ec837d008fb58e4654a8c76b4047e5146d. 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/DGA0H2482423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8c02132a3c10b3aec1a65c76e2dfe601eca4f1ab6027b4512a53892a7f6fe0. 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/DGA0H2482424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014463f650324e04a0c97e99b16ced3851fea77378b49b95215bce2aca6aa6fa. 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/NLCK41060467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ba8aec84ccf30308608755db680943e9cce5daa179c3359c2cb50535dfcf9e. 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/GB8KE2502071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a1580fa77d2dabed6b0b7032ed28360f2b16fcf1680145d3d868fd881a12c4. 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/USHM91942016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9dea6441bfa221fb595dc890bf84ce564421bed937520b4dfc40e2e783e841. 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/USHM91942017.