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 0xe90775be5abd071877d39907b40a6546526b1137aff349ce3a88d0d9f035176b. 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/9865fb11-1791-4b18-8d9f-70e867d37cf7.json and https://artists.proofprofile.net/proofs/artist/9865fb11-1791-4b18-8d9f-70e867d37cf7.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 0x4200f4b49638c811a45afe016351ccfadcb17a9741ae2ef4954e6ccb0095ee65. 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/NL4YD2100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8cf0768d22fa53e50bfe38366f8035a6865492a6a8c46a0d381b6422671994. 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/NL4YD2100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4b0f2fc3643ba7d5d15067d2805814d53104c47314ce2a60212a24646e817d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0f69736aa4e506c07006fbfa04feee5b75917fb7fd63008ece01b0d6e1a4b5. 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/NL4YD2100077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922803d75a9798e0dc5a2715cfc64a18244efe46661c76ca5f5437b0b0cedf85. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a72c1747835e1b5521fc9592e1ebce752867b2d2eb3e7dcf8f708ff692586b. 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/NL4YD2100062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e074e26e53daa750b6238dd4c9c53e3d28cc03c37670ab0bce1bd3704fc851. 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/NL4YD2100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82c3b7074fb97cebc2a59a121eaf7904aefcef204c30b315b2b92d7b92e6416. 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/NL4YD2100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b6e209b43c1f748fb16b3d2603ec5a7dc1092630b4292e2e4ac28444414678. 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/NL4YD2100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9171767233ebe1d94bde02889c7f6089391bb7bd2ae2fa83827f45c5fe7c10. 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/NL4YD2100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96aa17dd1e0ae2211fb71a727125484455c285dbefb7e6c7f33016351c9c8b19. 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/NL4YD2100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f64bd4c8df7ac342a9a70a21ec1b4310a98f30fb76da403c4828a705a4aca36. 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/NL4YD2100066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e477ab7720b3f929fa7738751a5ab61d30acd426493d46e0f4d779fa6a41e0. 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/NL4YD2100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccacef02577ff06bf419b51340761596b6a1247880cf4497436956405eb2fdc. 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/NL4YD2100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b3ae03a1efd38673c0bdd5ef1f19d64e7a2b36dfb215c82d99792fbcc59f58. 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/NL4YD2100076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc0de03a3c81d6b5341da51c703e298c0b31875faae4f3b955c0b099554e257. 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/NL4YD2100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bc0931f24930ff95be1c01e4b2d734086c9aff6d868e5d99be714e2d821bae. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8ebc57006084933cdc237c6167a90d801da35c93e28edad090b232f6e3174b. 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/NL4YD2100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5a279abbda8f9431706f6067029b56cccc2940370877be856ffdf609d80ada. 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/NL4YD2200194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194cf512d0d84465588a68b8a7fdcb3bd8a04a4a4856efc0e246e3ddda886806. 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/NL4YD2200206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe72a6a545d259e80841ce7b3edc12d8aad460b1feb971168374c69e2433c0d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL4YD2200188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbd195a2072f27821d3990c5529a4aa0bc9424e04ae9982503badb5d9df4995. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL4YD2200214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc2e2253f05fd4d3d388dc6158ce225c7606f313cc1189e09409ae6d627c579. 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/NL4YD2200197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c973b6aa160c55a34229314ffd12267182559d5e038554ad6e08b43a97371e7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NL4YD2200218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb02ddbc13df58aad8cf8dce2cbf0d56d0801d010f1ffff86884f9e43b53bab. 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/NL4YD2200189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc59e5887fe341f71a92e674e631c62704c269641b5024c05112ade4b9c85b18. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2200208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf714c038930fac0e45056a891a6c919d20a0d26ba0819770bd617ce09ba94c25. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NL4YD2200207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492bc176ec6e1fef4dcc5139ee195d1d129a5f08b45eb8e069a4edda77714a73. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2200215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd15e65f8c7d3845ef04ca2c1a6369c9d26069397c20fc3137b876f9048ad77. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2200198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfc09c87650c6544f8eac431119f87bf775b197ae355cd21da697e1103ab703. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL4YD2200192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a226a664c50c9fd37de1c6cbae86b65cf266eec9a01e0446c9865568bf144b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2200209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147dbbbde64828cfd01900f300e58b409689b8e8cf50b2396f3f2a33954e1a5b. 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/NL4YD2200196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963f5cff64074e5ec56e5e56001fa873ac6435cf2e195acaade5e80d27c156e9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL4YD2200190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c92c73b9d9839528b5f5df361a3975dd8723c1edce39903e28eb3549bdab59. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2200216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320d35f00dc51110af57e1bd025ba1d1c898f1abb69dc32f5eac69dafc94b272. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2200217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24eace0e4e75d7739bead092ebc5258413a71fe3ba3abe9e888e3a15dae33199. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2200201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2238a67f828ee714917731923614fd3eb50b0b799b3d3e13232984659103f920. 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/NL4YD2200182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8e836af27b340753e6f0b79373daf2a31d7ddc51e1dbbd3fd163861f16533b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2200205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac6826f5ea3857f53ca93a20a0962b7b3b5cf4c18f7b4225c972046cabae499. 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/QMPKX1806427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38895f0eb524520f42f4b4fa867dae459bcbfad719197ee2af9e22faf36d143. 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/NL4YD2100225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071a84535cd429f9d052b1dc93eab8273d1a6a5d635d72520d5be9f7df1d0e8c. 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/QZHNA2182332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553bc19438621131028ab16c187d77024bd88d420ad35378679308dc7012f31e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TCAEX2043141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa354f59d2778d25a5673c333c2236079235e44bca6ffb1f70c910790faa46889. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBLV61919646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a732a44740bbb3c9876f9e9ffe735b33e8cd03c849dd4491e639b8f21bfddb9. 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/QZFZ21952362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f0e7ea06fee4f4f86221ba20e7e2c83edcbf7a0d0e9a85687b40f25a2c1370. 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/QZFZ21952363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d2653a60f5615fb9092b252a173c4d91b95048e70ca7f995d56db6b71398f7. 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/QZFZ21952361.
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 0x449cc812b448fe541372fc11b70f1cdb7879e6e40a1e46bb0b62a94d9fe25e9c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZDA51954919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8632ad72adee2d51fa128bb7e255afe02238c06bde25206117a9c82205fd4673. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2200114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc7416813b433f55b9016a2ff0c568797040bbc2cdc943d044c1e37e029d84b. 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/NL4YD2200111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b15fbbea4a5a9030fe9db149b59abb8cd6d6ea22d0577e50bbd5dadd3fae483. 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/NL4YD2200122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547c8308ac24903c4bcb4da25cfe4f5fa098f47733be3078bedcf61d08bebbaf. 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/NL4YD2200151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b975701014f556dd03921d06645e2a3172580bccfd16a0266f9edb5bbc7820d. 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/NL4YD2200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e20cae16e0043f293bc7df7eda9bfbb3a945ab0c628dd1bfc8ce92a29082f9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c05aae6be0fdc84524120e29fcc2ec8844165f0fab54563b04601e5b19b2db8. 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/NL4YD2200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423b6b15072bbfcd767f203028e778dd085c7c777a8aec1773f4ac9cc9e055ae. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0614557543671157f30768a1fe5c7fbcafae4aec7e6bd63bb4c4edc2003bd627. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac24f5e522f9714bd03f0472ec5e1ad2afd55bccaa780fb4401e8ff40c1b40b2. 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/NL4YD2200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbeca35500c12d26b4efd1d517bffcf2409af804427f28b6c15ed27044a3bf91. 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/NL4YD2200125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4733e2364bf7e9961088c8ca1f4959944949a78d2afdad4f8bb3ba15f4248e. 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/NL4YD2200139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428fb6abd521aa27e57da7e78b932d00360ffa61160ec0570d75d46df7d9471b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NL4YD2200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647333cc403e17b1c59ed6ea4fa2b8a2f7f204a345fb09e6b9bdb9a63d94b16b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2200097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec604468d6e17c4e5bc8523a73e82bc7a8ab31674e37f0a6f0f6db17c4c67ef6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NL4YD2200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bec43b61225e01c3e1f4424fc606d5ccbf072391b9d47104ded8f68170be301. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2200137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685eb5cda57f31a40fb1adba916956ad051c0540308cc29bb7afe75abbdd4215. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2200091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e6fcc5f7c85456d378160cbf19978fee02587e640887297375ae58ca979fb1. 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/NL4YD2200118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c902fa7bfaa3c51ba1ffa3df7fad329eb507bbb6397a7288a5a61a3e8519d5f. 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/NL4YD2200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99002e0845403a954caf00fdb5fbaa52c8052afcf65c3c8321fe9763fd9a9fc5. 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/NL4YD2200127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd025b41cbd88d6ad6a4834184c8dd574e7e16236a4e9a344e57e2b5f2107f6ec. 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/NL4YD2200133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2b65a493b955f206f85aeab2587bb1d8ab0e6344509903cc758732c413d2cc. 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/NL4YD2200124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b5295229fe3cd7eccd7a17d01e7116f6877af944018e083d5eaa43ef20459f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL4YD2200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cd2a0831cf0817ee10b06bb4e3a7aefd56879b596c41c849643dff8a81de72. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBLV61917421.