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 0xbc5b727ef900ba4d686ecbc685becca330a57ac70b28491612af84f65ac47558. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/044e4003-dec2-4447-ad03-0da1e0f28518.json and https://artists.proofprofile.net/proofs/artist/044e4003-dec2-4447-ad03-0da1e0f28518.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 0x6d77059010ce4316b2cf7cc17bb67e6a303ad2fb46960e6524ad9131b213256a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZ5FN1853317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34115ce0679124526ca9542c843b5dc610141004c8eeeab9211388d9526d9fad. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/USCGH1866260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7dc07dc95bab6b48ed35c09af7281545e190a925eef1dfbc892aaa5aa44b64. 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/SE5751810240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a693c5c052bb0385f388119b4d8e73a752d4bc23dbcc0a4b06a82c4aaac24f. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:27:45Z), 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/SE5751810241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0abbd658c6bd9e3dc028ff7d65694e6c55c2b887e7a29175200e5c6ae06c33. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SE5751810243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6565325d0465f73d861eb659b66498eaea2e4efec5bbf46a42d0ab877a4c4bcc. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/SE5751810244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bc1fe1c8c35d63e22e4f45baae0a562b40fb647d8b2d1dd09f80c1dc3f9fa1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE5751810269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacba92bd75d64bec1db9878428fea842795afc61ae59e5358f3f47c4e0f2a47. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/SE5751810291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dff02e1de5a96d09fb77f141153ed6836242d5c1e5ee20ba5141a696f28c646. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SE5751810515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cffff371160bedc3409289f0061a534443bfcb960888d2d56785aa8b72fe259. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/SE5751810357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9819d6912a1b2cb2b3d2de31d0d0195547d0bcf5f4beede7171cd71d55349543. 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/SE5751810394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7828ed0da1929a74cf3c6b9363627cb678587f9d3dbd807588f10f27a0419efd. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/SE5751810395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc58e36945e38799ab74053e21708e069f73a6cd712c92785e20a2beb1fc657. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:23:39Z), 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/SE5751810397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745dcc62eec6ffde09a379b189de2355adb317980d4f1913c61b6912928ddd02. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDA61996925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc038acc4519e66fe87e38584743f871acb45be43920e2df036c21bf7c720539. 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/QZDA61996927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7814caeb8fd01fe4e1468850fc03f0d92292d480c2892f5b29cde3ce0703eb7f. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZHN71916463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afc97971474be34a91fde2d4e2072d63516e06235a3488c1e488fc814ff6731. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:04:31Z), 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/QZHNA1924153.
Tamriel Rebuilt, Pt. 2 (Original Mod Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37abc95af86604c0cfc6a9692940a0acd4182f5f75c412c5b8054b3a7b9f7bd3. 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/QZHNA1924156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf157353b06d6af181ab4299c6f9e8a936efb944df02c9bea1ac6008a38e9873f. 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/QZHNA1924157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3b0c575c395456d648546be289ad9b2f222d8c797c114186ea622f806ba736. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZFZ72059524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd105e78e5381be5479c6eb0d72bd0b83be3abff6e8b5e411a87883b727342d10. 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/QZFZ72059526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f073d53a779045eac64bdc657c4d5a02d5b4f882ab3f7c51afc2671fd49070. 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/QZFZ72059527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf177c1832b9b428a66c38b9831659427999f4110ab15acc60005b4ff77241cff. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNWT2097076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d01a1097540bf928d1d9bae262551c956a436f3b39ad030cc2c35ff7a2822a. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZFZ32131128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3a9f9cfb45d3149bd1f766d586503ee3135fe7cbf487d7b88e5050bb0ba668. 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/QZPJ32155673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9f6a56e2bb7bf350c4b4ac7590baa8e2082ed6160fbc282e3107bf4696d9f1. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:45:43Z), 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/QZPJ32155676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1da686d9d29143eb3889aa9935610b81c16dd21bfb8e87fb9e7ce01f6465faf. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QZPJ32155677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1985c432ef087245067d076f60579e7492ff04dffc4e81c412a9224a4be0f9. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QZPJ32155678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea70acea50d8329f0502e83042d85b2505061fe5e44a3e8a296f5ad634ee452. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZPJ32155682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b02c22bf40d365a974c4cbcc9db5b7e56c7fb52fca266445eb643ea722e942. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZPJ32155683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0f3d54a83105fb834722ca446b96690ff706dbf52eeb0d076080614e572823. 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/QZPJ32180594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecb00403cf596dce7a6055aecbd5b19da17c25af498422abe944440b578e3f3. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32209326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76e6f584f10baa0ce4115ab0356767521351a858ea11a19fa742352afa750b0. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:09:00Z), 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/QZPJ32209331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1804c0a871faf6b760e9f0d4d4832b11a48ff99db1aa2cc1f388a1809fece4a. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZPJ32209332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd1d6d6c047d70eb33822fe44ef6504bd3dc9d850a0e6d3cb220c0d7d1b0ae3. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZPJ32267337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5568de7ff817b35a899f2a90941b9ec6ae6143135e743e93d718f58bac6aace. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZPJ32267340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ec9303bd3aeed3e673a13ad7ee22f500caad921788814b50da8ec4b0bfe982. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZPJ32337096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a023218fa9cd33d20c85fa49b2260fbfe8903467149b5ee7473124894d546d2. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/QZPJ32337097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57dbfd3dbc384b7a037cbbd87dfe4e9fb8ba6e1aa71daa33fd209117cbec45e0. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:06:39Z), 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/QZPJ32337099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb6eaf13c80ff44170f3343bfd7f03e9941eb126cf204d3532d950182f8dbe4. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZPJ32434900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45991e5c0ba73fd3c9dc9fa6cbde4bec8c7bb286ff2e21d3e4f01baae9543978. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZDA62586597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe155b8ae63d027c81402b6bcc6af98a6a5ffb47f7ed3ebf2b86602db722e6d7f. 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/QZPJ32469580.