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 0xa37a498e4d630d23759602d2bd259957ff66b950a739dfc28237ef5992c8f821. 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/114690d1-1096-4038-9a72-6607cae1fb4e.json and https://artists.proofprofile.net/proofs/artist/114690d1-1096-4038-9a72-6607cae1fb4e.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 0x0cd2766996c26d579c4cdfe952160ea64aea7226c108a59367f1e15857d45519. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZFYY1978934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5163ac9a68ea19ee6d9338574ec3d211b1e56628772460f3bbeae369ba9eccb8. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P1984421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5d680e6db055e4d4e4ffa911e967c62e62b44032b65a411ac994810ed32598. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZFZ62004587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac992a80050d0524f0b6d36cf9c5038971252f666ab95e2206d9002c7d36621e. 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/QZHNA2085777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a3a70eefcb95db0eb54e5d058178696502a969a17ec839f11612ed6e602b8a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZMEP2007959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ccc622ac53d4e69d894669dac923b50851af23ba041d19e3f1ee2ad6d4b57d. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/QZPLR2030263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9034a108078805566a9ded9727fcd9c41e68dda2adb08b42cdc52051150690. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZHN92165956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99017a6b0c4ef285566da2d8c515f5a247fc8fe39c1fe32455553efbc3c3eee. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZK6P2178504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0504da37a7749c3d7eb6533f6ba1dc04117447b8bfcba9e7a42a45a7d29401e7. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/QZNWT2147882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e27e6c594df498eb74ec7bc142f3761f4cc44379e21eb8836428cf66531f02. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZTAU2187956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ad42b93778e44ff4f189212bcbd1c668c676370beccbf1c824105b4305b2da. 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/QZES52208956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85257f8e8e46d19389769dcb15c44647af0e46f968ae4dd586e5a1a65c51307a. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZFZ22399459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0ae26b743e957b885b0e723f955eecce45e003ecb0ea237b98401b9a0049ab. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZHN62339520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f0717473832f9773a806d0aed83b6277fb5f11a99e53b10e73e9fc3cdb3e5a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZK6H2306431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c22d76d50f79f28cce47cae35f1c5e3868df501df7fa9ab11b5c1efa68c5ec. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZK6G2300705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d87499a484340fd3f3c6ca7c6eed62d8cb8273faa76d26e546cf2f94d75d39. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZTAS2371625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac36a369735c15d71d0ae304993acb11d06bd2152ef5052c6d9579c9b529533. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZTAT2344718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0f3f71e97826178c6a6b53dc4e90903f9e133a0bba8e8c12d0ada685587e5f. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/QZDA42446697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e9f1d8c95de5c86837a8ae9e8c2c200ad705494e0a0a12eebd2e150d56f543. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZDA82446114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1815b9856491fb96911b2cf3c4f77a58cad018982d5a35976efd1502b035ed9f. 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/QZHN52477006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab9d6f65714c82c67f45e7c41035c31391d2e9c5c2623a2101fb04596721964. 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/QZK6H2463705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6524b3d5fb9e3a84df12ec1e127fd047190e7bba7a1b34da93e93449b80aab50. 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/QZWFV2418197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc597d138b8c5c6ecfea687ad8e3464d5965bac3394068e93fdb5c462bbb199. 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/QZWFX2483460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3ea41cb084b9a4f07ec7406c4d39e5e5259473161a2fce653338771a19fd9a. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFX2483462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa598144c8795b2e15f88feb902119746913573a91d9a05a828d3806de0f00397. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZZ7M2485876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a685d6ba1b45d09a0a799cde63d6145e50c961a78fb2fc81b92c09404edd84. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QT3EX2460437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995958e08a7e53edcd5910a441324c899e65e6763f28c3cb0dc3bd9f98cc4e57. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QT3EX2460444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a1deaee9ae3a8586c12923ce1cab1cabc89b07e548fa5f5a9edc9f8d832193. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZFYZ2575357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff13c56a8cdd588d033ca1dcb32368023d4573d0f640fad1cd3b9faaf6ff120. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ62553976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da1437503338cbea3c28081cf4f36310759d444a208b290787227dcf030d784. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/QZES92531790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8759861f04a87685cf112cb89ecf31e82de3c1e673d065f0cb6ef06a3904e7. 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/QZHN32568757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf43df34e92f1e007af36e0ee48230e9bd10576ebe212bc6ab41c91bb56b249b. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QZRP52525384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564204b826cde853c533a99ded3cfc8dd1bb3e550e0a39e4839e7b7d28a4b461. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZRP52525388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0eb405399be445d00578cb87aa86a99cfc7a01a7a990a6db98eb174c427711. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZRP52525389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db6921cea8a93ac75fa81a42257c33f358775fb88f225412cdd3b4585da00a3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZRP52525390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4becc857e1633996db04c7e735fda6216c8c2952688a94bade82c053e9873dd3. 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/QZRP52525391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d9ebdbdf4708a5379fd335b181bf762583cc4e05fcf9a38da4648331207acd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZRP52525392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01b53b75127bd6d095bca34b0693ee2206e9979d6bf2646abaa0390c4eb3dd9. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP52525393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7262dc7481dbd3f00550a3d484092471333d97e5a76f012108c98035e1520acd. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZNWY2519663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4e6d762c0fc6828acd088df2a7fe0ea61893015a2dc1e6aa1e42ea356f9c05. 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/QZRP52525394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d95d556fc37e1de16537ab43b6c5c515cb2da0830b1366a9cb411e99e3cc76. 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/QT6E52582929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff5beee06f0c028a1514ebabbb1d63f60bd4127f8810d2461775ded5251978c. 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/QZDA62438663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e8447698ad1a21d36f936569ddedba2053b33c1b95943a983cd202cd269f54. 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/SE6HN2347594.