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 0x8b326c541634e9a135d8db8870e3e46b2dc3abbaf7c4e975f44e34ea91f153e4. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d67afc8-8007-4925-9542-0b96f6021813.json and https://artists.proofprofile.net/proofs/artist/0d67afc8-8007-4925-9542-0b96f6021813.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 0xf0c09ca4010b1e4952ea6f9b87065b74ac298db8540c3589925875b43a050862. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7527943e118ace6b50a6668665d6f20b32277b44f63d11957dfbef7122be91f0. 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/QM6DC1538362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2aeac1eb17e85bf4a351df88e927cb754923e2b28613429c9a9d8c9501bdfe. 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/QM6DC1538363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84f3977f4f5d12d5e088f99999d4793be8406826e8aba10b2478640af10d4c0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b20727ad000bd3a3fd2e3a951793d224c41e7ef86dcf084bb07c1e9d1f984a4. 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/QM6DC1538365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24d1f68e7243f6fd09351e42d8b7ad4e7e9425c3446759a72f6bc8a1a50cd86. 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/QM6DC1538366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa130a2d2f9aa8301b63f4fd6dffaa1d965a70d004c93797f85741da1ca840140. 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/QM6DC1538367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482d63407b808831789839bc9a9f5cb9d29eaef5be4d00eccae36fe923420758. 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/QM6DC1538368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54676d262e05a237cc4df3a6c51f04790e29525eba9a445d39ab2f97b5bb402e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614054b8ec9b5c4cee8dfbc60a31fbbdbebe9e91d0c5465310eeb9a09a13f4b6. 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/QM6DC1538349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb76b79d6d8aaacf2bfa2c3b0a46fa560fedabc3c034f564ef84ee79b9d2213. 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/QM6DC1538189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866a7da2ef97e6828713c196d1138c5ff6571581268d50257afac74aa52a85e0. 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/QM6DC1538350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7be152cbd5f0d1e200aebeefec8a6b56ce9d04c5094e56c9f8ef83d4b6499b. 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/QM6DC1538351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafc4daa4d53bfaf7e1ce89e39d8746ee1ffd652d559954bc2eb40b6e24eef98. 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/QM6DC1538352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a8ea26dbbd6bdee4740acd560c264c3d737998ba6e87686eebb4ae0e031a9c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085a9124f2102e6fc7028fe87e2b89f4d4b01374db9ae17080fcc96065527e12. 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/QM6DC1538355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901805314503a856fab93e172cd9dd2db3326f64a5ea8c4f62b026aad92ec42e. 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/QM6DC1538356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46ef397a9b27c648470a0f8b9b643d9fa610486d225f21c0f7c6727823db951. 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/QM6DC1538357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabfbb299dea8d418b193bae5b73cab77aae3f9b94003f35ace46ecc8a21a70c. 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/QM6DC1538358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d5aae2bddecf5e331239edfed9e09c14518ce662c0d4ddd63e25751537e82e. 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/QM6DC1538359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9b030a9cc1c0bc340fbf5bf60588fd820bb553876e4587d5645013c337f93c. 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/QM6DC1538190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ecf79fbc157f31e2b246c273b9d0f718fe2afd7752e4c3c506b60d6cb2d0231. 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/QM6DC1538300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13376468cfbaa3f948c8ba8f98c44a122931bbd10c3592e37a8470c6fc3a814. 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/QM6DC1538301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dc92d36116c26ba58b5235cc3f1a0123ee5aa86af2b2c0918dbf223f45900d. 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/QM6DC1538302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8d0c096a5c717e0f9d6cf8fb231f04b3d1edd6a150b4f95f5c226dadc564a3. 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/QM6DC1538316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0dbef72782278515f2439ef2a03f41ab8fff1728da3fda2787f6192eba7dc3. 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/QM6DC1538303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb41df44824519276fb2ecbd3cb2da0d1e1e6521a5ec5c3475a2dd11b02b2cf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac206dc29e12c2d7892ed361638f9ae16e3f4d8d927a4e5e2a08d663914e7f4. 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/QM6DC1538305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cd1c3d4650bc8c0a60e427dec995cf9d00997b1af9063b12dac003303d2960. 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/QM6DC1538306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef277f1f52ff1e11d55f40c17dd54a56b11651f4ea25262581d8141f27e1ec8c. 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/QM6DC1538307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7befdcfbc667c7f952308aeaef29ea2da187d37b0b3d35d6be871c4624e40146. 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/QM6DC1538308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9818e53143f58af4a3b91282e7816d9e33e6dcc3d9955bf92e63390d12efb819. 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/QM6DC1538309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba09b3bb6957a77cb8f441af943690804de001800bffe8932c918aaf6ca1259. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf25e87334a523b577704af808409be09f15cc4702e983abc56fb4fe412e2d4. 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/QM6DC1538314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9127e5329b89997e8b264c344e5f29cdf4c605d00093a365a816872bd484769d. 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/QM6DC1538191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e355b5151c96354ad7e2bc5aee8e2b267b2070191ff44d275ab3e7d698ec58. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62328c3d6aba949f5fd810753525ea1c318f234fe2746ccf7062ff90adc2301. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c77b2fed1ef9f54e3eccd7d6ce79ba5850b55a98651618e5a49b799af7c21e. 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/QM6DC1538194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4eabfa5eb0272dec5f3ba1b83e7c458bccce9c243e922a2bbb6740d1c41b33. 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/QM6DC1538195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81407afa216efc8a5e5fae243e0ace38bf7b5d35f9c56b927961ed09ac764ef. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QM6DC1538196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f64736eb88bfea0d9b9f548f9bbbdbd37db350d483cda7a4498cd279925cd2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM6DC1538197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123b27f1e68bfdeeee2876fdfbc9e59bf5a2c69a8c96f0a87f327c2d86877340. 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/QM6DC1538200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50ed2934af339770f7dc09a771fc2af42995f6728b67b0e455697d7c14fce28. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d117b4777922d206bc2a62db25b65be6e3252e02215adbbeae4accd0cd6d8d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1935aa21eb20b004c5ded8fc95a53c05f0c65a64c422850af77e2ba4b4c488e6. 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/QM6DC1538204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5187bc5356db72873b49c8fd30d2127245b62520c168c85de4098d9fc70ef455. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QM6DC1538201.
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 0x95f878d3e193437c0e31a90778a819e805234cb3c609caca05701daf11bb590b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4e71f1605df288d6aeb8d60d78f5ec085205bbde32b036a73fa5c449bbc591. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce055f0bac4f3e32c6887ff85813eb22608babbc318327bff9ceeb6f9e1d0700. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6c2496460d5505fc291342709f1f73208a65d3eca3c4927b652eafb02376ef. 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/QM6DC1538009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ec191634d1a93f506f7638c296053cf414c57ad111e77da2cba26139c4ead6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d6de679849b707e000e6b108ec3e607fe86da622277a15db5969ca9453172c. 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/QM6DC1538011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ed18d4464752802bb3278ec2970fcda3f9604f146ccb28a8cdc52a9c283aae. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd971185d3dc393c1d346fb66c9772c602d014560d8dc75deb0372a015ca34c8f. 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/QM6DC1538013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a620c9c8ce45c014d15b57722ae7a5e6538712efbb911baa5179fbee745a10. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QM6DC1538014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa11cd2d65160e9e80e04d6941a04f2ecd357b489ead8472c893e8b728c1d47. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QM6DC1538015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df5aad3ba6ee9c22a53238e4d60fa0166bf4aa744646ce78b8919b75197e7e0. 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/QM6DC1538017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efa3418bdf46ed81796f21c31e4415dc98c5f835a16da6c275c4399116219e7. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QM6DC1538018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cda77c2375274dfd27b1d5fba1470aa255b0e68b89bc300682624bb6944da45. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2269719752ab2b2b73f4375718edcc8fa1cfdfacef602172370d7f6ddbdc3833. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf7175e4e02f60d4608e05de1a14552ad6abc31354fc8ea5adee78b2e61fbf2. 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/QM6DC1538024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9c15086068eb8fa810900fb29eee5635fd03f1f58dfccff4e33003ad3713f7. 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/QM6DC1538026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666f7c0bb9a3737754c308efb30a62ea2578f7d5aae7e3421035d05ecd3adee6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1538030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8e0b7fb148afe55459c3842ef5aa1ac664d60f4369659084e58986ada07d5f. 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/QM6DC1538035.