1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29e54aaf28f16911a6920cfa361698485ee24cc73b15b31a1c65a9f34783717. 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/09b217ba-9d4c-46fc-a16c-1cb076273b97.json and https://artists.proofprofile.net/proofs/artist/09b217ba-9d4c-46fc-a16c-1cb076273b97.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490dc9963544d7cd2a22033dd31d6ed4fae66e78c07630bbed73ef652a2d7899. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNV01600849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6473e1fdd89ebd30efe8504bd88e2ae0dd8a0018d1a06bb1449e8b3dc9034044. 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/AUNV01700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42867de5dd0f5dd48cbf6951727badea3eb23b1b6a1ef8c1de0f08a632e8a038. 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/AUNV01700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbb5e1e9b51b204d0263b324419b5b2cfe26deb09e60424224df25f5fc41bfc. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/AUNV01700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94406f4188922b3978454673336cb5ede53e5839e83f480f1205cdcc8454e9b. 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/AUNV01600441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ebe5ac9d696fb21a3b45b50647037e352f839cc6f9704750f7a7921c109c14a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/AUNV01700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d925aa57b6efa4f9bde384c4a4610371b850491b2460b8d110c4257f1aca9e. 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/AUNV01700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8abbb26035a6090de0a9b837cc97c6e4786feb8bc655645f732770ba2bdda65. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNV01700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a006052844a3c76bce2b5d28a0254e96c84c19c43d1dcfca7fc261ca1988e1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNV01700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9b6d003504170d1b8388ca51852f860357a3084efaaee2acdda3b5c1dae5a8. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FRX202328884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4edfab04c6f7ea5c11b89f1c197aa8544736d26a71093f581ba81866cd7f0d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/AUMEV2301795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05face0c8412fe7856132e5a2e3fe986ab9d7cab33e529ea5cac2f360489c77. 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/AUNV02200098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739413fb6e3df6175db284394405338172cb65e4dc765057f0f17c70422f78a6. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNV02000267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c542288d89addbac111b0667bcd0c547cbde7a50f22965f5ab53a2e8d3633f. 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/AUNV01900406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9183e9aa0f21b0623013e43f7d722eb11bb54a1a723486737adb67149d7741b0. 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/AUNV01900279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fc6a54008c074000eea7c42d0862d93eb9e599bfb4eb80f4b65db7c5856127. 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/AUNV01900160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23157caf5daef15378c59da1668809b11d18f5c54cc8b324323334561e16a9eb. 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/AUNV01900180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932e6a45812273813d94b5fdd0483d411293a87c452fa67fbc97a29e708c3775. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNV01900132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e40af2f2b06501a6e88fc86d6f433ad7eb8d862cb3d983803fe68a7350afc9. 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/AUNV01900071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ce7154e6a72069a6fafbe2793da0d10fdc7aeb8e13552f8a69614bdf37a0c3. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNV01700184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770caa55399766fc41a3e51e1cf9da36c171a2744347141f95716be35e3f56bb. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/AUNV01700185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838ed001043b80e028bb007988b690f1d0617b77308b3f904c1fd48f8ce310e7. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNV01700106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd176eadf29cf664caa002a285534091aa87af41411e98f001ec4bed12b6287f6. 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/AUNV01600928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e584c3aee9d151647f1e0ee00df914f36f212521a7236d28551bf73b411d70. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNV01600554.
They Don't Know Us - The Geek x Vrv Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf847e4b53dbe876ee6ae50d794f6685ac73e9c30264d2bfeae826482db7abd4. 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/AUNV01600555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7baf172477f223d7f1e432a57ea286b0e075ae4d37a40adf7746e112a68c26e6. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/AUNV01600556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd564021c38a4e323f3741866bfb937ded291e05b7a0f5ad37ca97d4b7fe972a4. 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/AUNV01600135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f40a0894c00fb313e8e7031cf938e055f054a5e6adec5fd01b115ddeb7f6ef8. 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/GBCFB1504708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bed514acdc9493ae94bc7c5422b2d4301eef69ec21414d562923132077e59c. 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/AUNV01500279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360efc06723245f9ba9fee702d676e0d5f7214d8cab32d39563b7b7f8856b85b. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNV01400863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6968c61f032a1c06be8d48a3478090b3752f9e8a336ed6db20a7cf6a81b3a5. 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/AUNV01400865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf918973edf985da951d91efb4c874e8d3d332e7c1bb688719dd59006c6cc53e. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/AUNV01400246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32aaa2569eb3517beac663863eadc3201d066ebb31d0e934bb9f1c2ca3e7922f. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/AUNV01400248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ca902511eb2ce3723b34baad957d92dbffa0b559cea0b7c6835a94d89c35c8. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/AUNV01400244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f377cc27d34e86c10cbf814359f5ec74b480ccf7ec07b25f766a1c38802955. 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/AUNV01400372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c8d40efcc2e8b10de9134346fd856179920cabac9d5f1c57055a2bab84313e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/AUNV01301436.