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 0x19f7fa8db0341742d1ffe89babf4fabc4b6191917ef479ea4df7f8c95a174f7f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/284272a9-a875-4069-a4b9-6186d2ebf938.json and https://artists.proofprofile.net/proofs/artist/284272a9-a875-4069-a4b9-6186d2ebf938.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 0xe720931f09117ae9fc1b7d39519028510a45780b168f41ced43b83aace56d998. 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/DGA062352560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c3a98f0adfdce7bf0052c99c3c49fc250b990fcb64e22ed1a5a5639cd660e8. 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/DGA062352561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a429b3f1827328e45344c5abd18fde8ac5f1d7727acaf926cd97b8c989d39ad. 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/DGA062352562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004679faec21ffe6b0fb59f3e43e6111cdc8fb9e28da92dcaf25b120b6bc96d5. 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/DGA062352563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3082c6f845356ca35b2cb11e436e20c3600cfeadf4b2f2431ae0552d6b4339. 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/DGA062352564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5291ad73aa4f98e50ee4cb1901cd38f301c761ce6ffa383f8f12070662f3683. 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/DGA062352565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af50ec73033a4dc5c3b2884786a7f0cb92f8cb3d218cb5637233fd4e7fd9a7b. 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/DGA062352566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fc462501dd2e7abb887dc0f2bc4838f666ffbdfb7bfdb771015f5472582a0f. 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/DGA062352567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa691fdefeb0ba2f983d195bda30b05cbeed5db4144d26356b80682e4f47b70. 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/DGA062352568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf59d0ee76945a8e1f762ad8d44ccf6b089dc3c1f13f5f1b40b54646717c15ed. 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/DGA062352569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2aa2d0b83110fd602fdce8405f2fffb6c9ca572da36b05fda7c208644847103. 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/HKJ962012601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465746981fdd5b63d9ad73718fc0fb660c3210a4e1f58ea432a0304f3aa0d20d. 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/HKJ962012600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520987f53a33e9da06c13f050adab74ad5b83d37179e9fd7cfe3580d524ee88c. 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/FR59R2082619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6550da493094272e1ee6e317e59ac83bd652aa5c366ebd0c1eec79f468d294. 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/FR2X42007582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1a5819ce26145da18c58e54b63ed6ca950d504e22fbba2c4f2fd0519c58147. 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/FRX452017465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4b47a44ff28a576b32a084940e402e013e023334a343291631e95a97204543. 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/FR10S2004331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e7a8bfde3508413415e6af61cb75e3a734cb0d2c61c091cadab6797f385938. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FR10S2004332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464389379ab9ae3f51c3e3a331f48694adc0a9be7e6a956e7359a972ba3eab8e. 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/TWCT51719525.
晚楓歌 電視劇《烈火如歌》戰楓情感主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586f9204cf1425ba0b2b135869ccfa3a493332a10cb084ff4be8a77a02b5cde7. 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/TWD251858324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda03e7c8c5ef17a55991888612dd87d2d5a183802a30c7555fd510c045b0d8b. 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/CNZ612400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75a02e5e3ffceb4f01e04aceafb0ea1977afdc3ca763cc8ad0ef77ade39d8a6. 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/CNZ612400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a2b173b98a3e28dcafcc5c09e45ad8cf709c8b4594a596e432b8c0ad8dc4b8. 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/CNZ612400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdf0bd57e406d079ee755e746dea60aaad698531bf02146b30be1c4e983dd3b. 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/CNZ612400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e3ab5eea3705e866269e8e7315df9cc864102b40b96903f1719addf504d76d. 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/CNZ612400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fc5211f216be7e25b8b10c83059ebe397da3f3481365b794047ef91634e83e. 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/CNZ612400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773d1a733e6464d2f646b0671356c377e13f7a3cb57a4e9ddb8205cfb7420e70. 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/CNZ612400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a61b9185df05ddf443cd00913e98e8b3cbc6c118f2b4ae2ada1d202a37aa872. 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/CNZ612400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e59c41559748a80e75b6c7f00c510198584f2624ed0b770aafb429390bbe2e7. 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/CNZ612400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f10236b841f4142bf5c5416fe50231b056e2a0e6c51a792f668ec2b239978aa. 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/CNZ612400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eaa15591d1b13b7a0488c10094e8b83eccc57ca019461533bab775bd75a2a71. 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/CNZ612400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6041a019cb8c16839058dce7cab5b7a6ce5f582fc89acc5abb1acb88f4b750. 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/CNZ612400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4aab99e6f8c5276511dff1fe86d3cb2b65a8111a1a47d931f6be8f591d73412. 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/TWD251858326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20957af8aa612958d156e6024e8409d6bd20005859041d729e5f95dc3d7e0da3. 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/TWD251858329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4b14b2be7c2b26a0ede43d9853d11a4c761c52e9ebf0f32d763764f8ce0dc4. 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/TWD251858331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b9bc859972bbd2b8aba0c4791b952416a562e34722002673d54eb44ff3dd83. 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/TWD251858332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ab750792a7eea4f7142340821fd3b38fb279f64d76e05f11a45802630d4854. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TWD251858334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8accfd160b0883ff3ef3069d495a003e1109caa2ba76a31e4bbc3e1f7c452496. 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/TWD251858336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8245c495321ea6183e35ddee7e55e6ed0841d50b57ebab92959a9fd56e67ebaf. 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/TWD251858337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa793503de02aecfa40a6119af5b04355c1c47eebce26c4f78a5141e562564a4c. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/TWD251858341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc87a8f2cc5422dc8507b4fb9077c921aa6d3ba8a1ab083908f4ff31a6d7700b. 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/TWD251858342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86afd6cee4f365f895ab50b36943912b5d2bf0329cc4b55aa205138572709c9a. 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/TWD251858343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc808aeb09cfbbede3a0ad07ef82cc49dfffdef23a96cd96cda26cd3eeb43f4d5. 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/TWD251858344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033882a40ed24dcb5787c82e44793d7cb7e75773ba5deab759e1d5c31923c3fa. 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/TWD251858345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf029355c208da469d43a766f7b68ecfe234ddcc357f1901398d3114d32b30de4. 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/TWD251858347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a335afa038922dc0c159028cb91d2db5d1560de2996930195637f468609d04. 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/TWD251858348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4eeb15bcb2792194da2790b1749802c00771dd885ca6af62732f2f9b54cdace. 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/TWD251858349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350bbfb08e95d8f9b84565ee79fefb11276c13585e66f05d04331371d0e47ebc. 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/TWD251858351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bf41ababdd58a769c96f3d2d7d0c95a313892bfbe606ba69929d812304e188. 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/TWD251858353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8057c86b51c4220ef804e9a235815706e269a8a46cc2f9ade2dd8637aa2e4694. 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/TWD251858355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574cffd3dcea90fa9c19c1fdeb4694ac6de7a19e3a101e85b4c8b7b0b92a943f. 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/TWD251858356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915af12907c5888014976a1bc1b2c8c42d9281b0777bf2ea76e9e69ec03db40a. 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/TWD251858358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad16d499b241a6765108f6f276943d3159feb885e3f04abfcbe089338289644. 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/TWD251858359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0427837ba3ff2df322a003f258b0633ed362497875ae2bee6030651181fc90. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TWD251858361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfb4031e2377be455f0de8ee5e7f3ce86139b81f2462eb850042c3954876cd8. 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/SE6SA2478527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5c6a29876a8a90cb629e4cb1dfa2bda350fa8b2a98715af0ad7b3cd392febc. 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/SE6SA2478530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0b97117f1d4fce6f863af2d62131f6a64a2fbe5f7d91e4731c90086466b27e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/HKE022380008.
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 0x726706f22065d56382145cd0e1c9d81a2e88dc6209a2516048b5e3ca5980809f. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/SE6SA2478528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65783040a231fcaf11b92d7ec780976739aaecb5e83e1c282258cc3abcaebdf. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/SE6SA2478529.