1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xdbcd4948e20eab53d8ccbdf74edfa558fc5a8bf4cc094a17c6f79de71f47c3e9. 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/0760745a-c98e-4c3f-9e32-b210625d4961.json and https://artists.proofprofile.net/proofs/artist/0760745a-c98e-4c3f-9e32-b210625d4961.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 → block OTSBitcoinBlock must exist at that height 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 0x24faab3f607f7ae05418fe65c5f13e544491b99c6fad0ca28d3cd11a0e943337. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPA601800059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e502b5a966fcf99ef951ea119c8ba6ddbacc70472d2ffe4d91f4f685071cf0. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/JPA601800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d93655e62ab539f16dfd180bc3221627e379bb824f4839c31f48c179277a9d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPA601800061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2747e74f5f5a77d741df56e5454a3320ffe9b6fb440cc47c62033a5b2f7474. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPA601800062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037f57ecf203f5a18eb8341f2670dbe55e67af6bc47fa88c2fc892292f6feba1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA601800065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682b9c8cd60c544091fd3a19b5e0816d481346b742af275b47cb3ecbc6bff530. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/JPA601800066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d2e00758831b50bc6a05947599305642ea527197407c5f16f6da8469dcec07. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPA601800069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da3496f34b1c5879b2e783ae3b9ffc56fb9873fe657c5dcaf7e006781593aed. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/JPA601800073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57af84d6091c913aa3b5422c9570eae977c1a0ceb4d52602266740357d71c592. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPA601800227.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7c962de3c0989a9920a42c95875877edc0a6693618ca9845abd48e8d8f31d0. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:34:05Z), 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/JPA601900297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1138e434fa217f6a81c41f277ba02fd00ad5e2192b1cfee183c29aa88c5e77c6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPA601900300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9267572d58f017dcf19c176b9a583e7cb66ad12a3f4f117bb87d81f94dc419f8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA601900302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8379136062e7f0fd914a4c091e11ddd75089698b18ab2d6970dd9baf7e851961. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA601900396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79cfed24bbb36671a5f255e3f8376d8601a9ff4acc297101bc4bfe123807258. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPA601900397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3b41a6fe28c3b89db5d4fc6083846478c030223168abb40ea53959b0c90573. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/JPA601900398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5080e0fba173986fef99308598bc88e60774f58178420c68f3f52181c34adffc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA601900400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87289a5d9466d0fecadbab5709118d6c01146df60010540a0469e8ecaeba9d2a. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/JPA601900357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310f730e60675c90d6d9bf5ed330ea7fb1f3b0b7ab654cca4b2ccf73f0860097. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA602000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d371322df47c382b28ee4c5ed3d1877fa4aa088794f8fd776e7e8d648c13200. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA602200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2615676c8780f7d01aa9e4c27e4ddd2de36c08c33eae5e94b4d0dfd4a367dd27. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:23:29Z), 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/JPA602000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78cc38d3312a51913ebee29d7c82722d2d80eb2fb3a5ae3279275a86e7aa562. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA602100157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae1c90656587262720df45c16ee24280c0f10294a5aa2e137a7ece8a1e8232d. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPA602000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a77afe7286b4da25654c6ce2f1acd331a874b132e5070fdf55f3f8ef4700827. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU902201372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c819a846fdea46a3cb1ae86fe6729ab2a26aadee538f6a6a9b44a43a3d38db7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPU902204643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf00aa189cd7f681ebfaaecc9ab53dacf087d0069a166290d42f54e132363eca. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/JPU902304023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f27aeba76b8b08932f6522bffee56600159c8fe208d207640afba90175b37a9. 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/JPU902304022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb093697c5f15a456aff70c57113739380dfba29dcf8e44fed290125e3055574. 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/JPU902201235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c819a846fdea46a3cb1ae86fe6729ab2a26aadee538f6a6a9b44a43a3d38db7. 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/JPU902204643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c048c9973fbf80dba3c0aaa855915b1db1af2d90624ed84909fd6d507a9182c. 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/JPU902400691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717b40e82a9b969cf6e3117d9d60aa675ce01e9c7a4e61d64d53c7e38c992ee3. 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/JPU902400692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb420bda7c66d855f52b901145fafc069c44ce69b0eefd52c76ba6497712907e7. 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/JPU902400693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e4004363e314975ec0cc46ab35514440f48a9e9d21db4c17828479d1e718be. 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/JPA602400118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf66ef8e9a8043e9aa76f23c5ba5ba127f6a0ba2158c0174a2e25fceba10a9bd. 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/JPU902400695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c0021b445bf5d7859cbaf9de1bc90a4838b86a1fe7f31d7abd45c630fbbdf7. 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/JPU902400696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096691a109653db95270ba00b8e09341d7366978cbcbbdc743407ed33ffca809. 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/JPU902400697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f27aeba76b8b08932f6522bffee56600159c8fe208d207640afba90175b37a9. 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/JPU902304022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb093697c5f15a456aff70c57113739380dfba29dcf8e44fed290125e3055574. 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/JPU902201235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb517b5c17fb36ce895da9b95ace3155144c50f0b2aaca915cac6a194cdad8795. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/JPU902401306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce6f815963b90ebbaa06229c69d484114a9aa4e4f310a140ce556feb9eb7981. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA602500153.