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 0x91171abf588cc86d1c9563ff0739dd59ef48a5d2f3605cf3090a364330bbdd1c. 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/bff8103d-aff5-4592-a6dc-495007199147.json and https://artists.proofprofile.net/proofs/artist/bff8103d-aff5-4592-a6dc-495007199147.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 0x4a60005b3f27d313bffdedd9dbd139911d59a40e272036be23f8db971a1883a9. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZHN81926504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e9628f31a7b9e778b0b9efc9d1d1511f52ac5c84997e5e3cba5b735d634290. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZHN81926058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a898cbcffa7f6a62a19d811ceb1a1401834f28c7ed83f37b70a48c9c9cfa68. 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/QZNWU2092160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a08fe1db17226e0c1f22fc23ae22d51a24c11bec3148ea63a502e160e4677da. 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/QZFYX2076934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356dd9de47a515ba45c5db4b7a36e9149dfaface4531b2700e38f0af26a42f71. 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/QZFZ32024800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d7d49e0a86c5ce2529647d3b120b477701b025081a044a61f2cde3b3d4c7bf. 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/QZFZ62059900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebdd6120f06d657db305e12a9bcb393e750c636d91017b78be5e9ede07e99e37. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:19:59Z), 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/QZES62041212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4020dc76bc681b95a419517164c04730ef6d6fd045bff606063e094677278fcf. 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/QZHN42064886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932ae4514ad66c0888093a0082308dff3075028d474cd24b102fa2d6fe962c1c. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:05:51Z), 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/QZMEM2099387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b2a3c461827e5518d395b659335b9b7c94be0fa8d5d08eb320671a3f4e8427. 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/QZMEN2098671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fa1d7e41ae72bf7864d8c06e538bbcdc1bd2844d7971ba265414a46e86cb12. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:26:46Z), 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/QZMEQ2094321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8465f516633c8867b89b4d3fb1e289d1f846bed3b8992aec7105216ed807a4. 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/QZDA52110303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3f74c293a322c504b9607860a5c52d1e6975241b0a07dbd727656d510a3cf1. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T16:26:13Z), 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/QZDA52110306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22722147f23645b89bba24412639fea525635c832905abbaaaa41a7b3a422f9b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZDA52110276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a4791e14788d6a34b61953937e22697b2d5d164bafd9c9f006ce7bd3fb979b. 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/QZES52119315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ddfc4af7d4761823e9e38b82ad8d13b1eff59f28335bdcf5a4761381fd294c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZHN32173855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc75f2ea7e6cd1776a5627412e652a5d4bafd5d78fa904e7bd5925adbdf51ae. 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/QZHN72185825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47812d78096c934951b4923b3adb95cc2a23252d297be8534f04512258cad166. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZHNA2147874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83eb57fe082e999b558e656e21ed7cbf53589b457c0405ff3c30c4cd9494031c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZK6Q2143255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084371e8569e87b7dbb854e057f866f052db4cab5dcbbcbb53a1d94580d96f61. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZK6K2172499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd9a62dd57d4ec08cb2fce0508a1658cb8abec22ec794ce06b38c8651e0cbac. 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/QZK6J2182645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246963dc6b8b94931df4a1a1673c78510d98c4879029be2b24b3e265eb1c9c52. 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/QZNWQ2190425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf51a97d92da64fd6c89177497b0a52c326a6fc775579ec56585f25982e1d50. 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/QZFYY2218511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958f8efc906d428757418ee18419d236edeca85033098069dba32e14e986a85e. 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/QZFZ62256964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958f8efc906d428757418ee18419d236edeca85033098069dba32e14e986a85e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZFZ62256964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c79279e2f44703b60e89bb8204434c07a243ff8c9f1a9ad8fa66dffdacea913. 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/QZFZ62256973.
Peter Griffin vs. Homer Simpson - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332f20063bc7ad984e8ef87b1e50a1e2db525317de28f6e359c798ebcd5db9d6. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:20:07Z), 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/QZFZ62256980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2de46d62eb70356f74aa3cd981d19278c64311ec03b2283517d782f7e8bdf77. 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/QZFZ72267257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8e97620ce7e397eb67b0de82d0eb7781884dfc422dd4c579cf2edadb43617f. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:12:52Z), 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/QZHN32225988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5941d6a7c70b6e2ec8a10c84cd4171fde8f13d363ad43605b624fa8188b5d175. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZK6P2237031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c1f8d7dabf93c74e05f7ca5810a03ca384b9aefd7c21737e3e84188e4083eb. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:35:22Z), 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/QZK6K2288838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e793989776e1f3d165215054c0c8b7d3e6169f8d9b3c71d2c758597466cb45. 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/QZNWQ2276741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f357ca5bc8c34396d5678c18ca48726e0194b76eca582defbf350be85e6ecf. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZNWT2284515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c0940e093906124e45509114f3cebec8a6cc354cfd2b2ca63034dbec530ae1. 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/QZNWV2233791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7490cc509af783f2364be2720152f9e7a06e403b87a1eacab88a98ea9b2e58dd. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:29:56Z), 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/QZNWZ2254952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a4f293c40cb53219933c71f2fd56c0239ff6c0b5ee56cc016787fae3b3b904. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:28:45Z), 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/QZRP52229411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c36788d070fd4c52bbb39082f39f4364e0006493809a895ae13392b0aaf46e5. 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/QZTAW2244346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc34de7315c68b7d13b3593369014b87f9be0dbd47fefc486b419652bd2dab6. 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/QZTB82229856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc34de7315c68b7d13b3593369014b87f9be0dbd47fefc486b419652bd2dab6. 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/QZTB82229856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483942e1788f894653a090b85cfd4bab9c285c8457ce0ced0215b94160e6b7ba. 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/QZES52370842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e793989776e1f3d165215054c0c8b7d3e6169f8d9b3c71d2c758597466cb45. 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/QZNWQ2276741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f357ca5bc8c34396d5678c18ca48726e0194b76eca582defbf350be85e6ecf. 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/QZNWT2284515.
Don't Hug Me I'm Scared vs. The Truman Show
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd7b8a09bc5db97faefd803df2b4bb8273d8a2e6067e8896606f69f000e0e3c. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZES52370845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a4abb31b0f216d6ab6cb49ba1b2eb638bc16f35ee9174e2cb50e1beb54ecae. 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/QZTBA2218516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bfbce0af24170f7f1c47d664026a8c430bc0a85f09a3ec56479bdb73bcd965. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZES52370836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e864a1c08b732e466344f84d24c26ae2579caa8b00a166fdd1e0d7c6e442293. 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/QZES52370844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172f5e98fdba5f6d181ab243965928208f4c4d93d29fdd157e8840613969919d. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZHN62379315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c4bcf81c0de655fd29030b155516d6d07c372cb78981ee23cb22c54eee4745. 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/QZES52370839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483942e1788f894653a090b85cfd4bab9c285c8457ce0ced0215b94160e6b7ba. 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/QZES52370842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fc2ec0cd7dd57d67013a3eed38b2c3d89215fb43c40f4ca3bf5202174ed227. 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/QZES52370840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3762c8ee49fa50ae81d8a331e8cf8600de96ced029269debfc26ae6f41fec8. 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/QZTAZ2335716.
Don't Hug Me I'm Scared vs The Truman Show
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694a201917159b154ca14c0df8f8d4b4fb1a2e33bc172bac33088f4988e4160d. 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/QZTB32367499.
Queen of Hearts vs Wicked Witch of the West
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ce6b7e068d5cf846b28a5076f35dbafae3bc7f54803e8b60a92b594a9cfed0. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZTB72352462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443fee19c70ce7fd24c7141d4da2a8eac8cd99fe4ec127e371b18de95e26381e. 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/QZWFM2396939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a76546c7984aedd2420a5021cf28d2fc9428be95ed3232e2b32dc51d9b2313. 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/QZWFQ2320574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429169219ac5042ca1c6c5e959e0c6c92fe58f6e53e758873fc756d08c56e01f. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZK6P2402617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c79ccded25661fce492b286c70dd1e360f05367b517a43c1c3b8060bdad697. 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/QZK6H2411906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8456e75e15004e9f6048ac02f5567f0b77700c9bf73529058ef11c5aa2ba5723. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:58:07Z), 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/QZTB22423530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7fafa944cf17fef1dafadf394f950b36769f8a4e6193c245566d98e533bf751. 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/QZWFM2429934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fde0a469a86ead9eb33181a0b66765c4d53655e6398c022b80dc4db5beeae98. 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/QZWFQ2448757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe2376883a77f4e8fd2a7481bee08a1ba0d2df2f6287b99a76a5203b374f65d. 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/QZWFV2477719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6833064b937cbb924a2d85009a6827e33ff146d18f590ca5c4499140366962. 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/QZZ7K2453123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67c5b0dba63c73a25e809800416e8866281c91f1cd0a6b984708e4351d8598e. 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/QZDA62357420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5444ce0e59f96f817639d4296af74f4bd6f17c1459a18c3f66d66f301398a09e. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZDA62357421.
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