Nils Landgren may refer to: Nils Landgren (bobsledder) (1923–2002), bobsledder who competed in the early 1950s for Sweden Nils Landgren (musician) (born 1956), trombone player from Sweden
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 0x5f4e407329bd1c8a644cf15503fef705c017a0be3227f185ca2587ec7e2fa2d8. 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/2b6eaa7a-f429-4d89-9f39-c2dc698238b4.json and https://artists.proofprofile.net/proofs/artist/2b6eaa7a-f429-4d89-9f39-c2dc698238b4.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 0x39c346914620aa614c9f1b12117d8ff1c66294ec12d5b27c152e31d2da2292e6. 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/DEA891900530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1e708f378c0e8f4683cd3cb2e6d5b9bbc7684cfe98f6e2c42f914f1037c9ae. 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/DEA891900531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37323b0f5bfc68e4b66f9bdc8568655db771f88196c619402e8a8b3443027959. 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/DEA891900532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481cb820609c9e2e59f996ea299fd3beae21963c6c65663cdb25e4e1a4910928. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEA891900533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c56cbc70ac3583fe3c405665dbf62aab649fe0bc5f2db79cd493cd883b49e1. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/DEA891900534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2be0ca8eb6c17db817bfec26b11d722acb0f43a9708a8aae31ef3af9e99928. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEA891900535.
If You Love Somebody Set Them Free - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabf83630b750466ebf7909151229d7c81438d3a27ed9f04ebcdb4084ad855a2. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA891900536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb536e6e6761627ea012b4e977068584b21917b3ba37af3fb4eb220a0e17e5e02. 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/DEA891900537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6b9e9a84f47cc6c44277d8913b4eee3f724f37da13a5813fc13a904940c421. 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/DEA892200343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7367756ede3c3eb95642331cd3c82710959344dd75ef84299cd958e9878e9fa. 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/DEA892200352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b74eebeda5826953e3749080e8820cce85fbd6f2eb1e71ab6200abfec96656. 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/DEA892200360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fa260048ddee4ecaa24cc1a26ddef36be72d2d172effd1cc4704d718333c78. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEA892200344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675944ea78f8bd4ceb79e53dda5943517ec870d9e3a65619c5c9ab0207865a36. 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/DEA892200353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc9934ba9cafab28700830d0708a41c4ea6cd33d8382eccf4b07a530f497c0b. 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/DEA892200361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85095b20a3ab489e481cc531108403dcb810fa8c50284220bbc34d92bc389ed. 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/DEA892200340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1f0f44ba43c65b3832786d3b2e3d4928e6b8f998624bc17dc796ee2fd62b18. 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/DEA892200354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28a70e8300ec0e64eee419533c6699f8ace26a63be5dc4259af89422f0e6a3e. 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/DEA892200342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d02b4ebf0e044b881936b837c44c56e69e4ae128c3595a48bbc5c8c209629f. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/DEA892200345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b777359f768d976431e53e8fbdbc0e442f2a0d5fb33db31166352091068441e. 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/DEA892200341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb091d8ff7e21e49b618a1308339adaa28cd3269247d1b51a47199c3d56a9906c. 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/DEA892100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171ce1cd9acf35d4354e833a39a7371978884e824da9ed18954a139a4037d718. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/DEA892200346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406cefda4c900f275aa5c1bc8a759a6046917e6f96b4cb3b095ffa380bf5e6b1. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/DEA892200355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dd09c3c018c1b357601f4d295c04f30dd0aff63f4c5718481729f014070436. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEA892200362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004150a5b913589762cd23bc36e9e019a35fa4389166dd8d8cbfbd21aff2693a. 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/DEA892200347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3151c826eb9685a9187870032f1c979e5a36462e2ac7ff856add4abde105e679. 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/DEA892200356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede2e6ec1fdb240f7f73a1b7b4c1645cf011d414c0b99e81c8d35a31464a7f86. 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/DEA892200363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3901df67bd8c22d9c15da265684c59fee5f41a8228b8483c49d58ffd26036179. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA892200348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0c77bcdecd050c0eb1491ff6cc90182e5c6acf454058a550fc22df3b71962e. 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/DEA892200357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fe5516982e18f22eb606a92811994d233c0e6e0bb37685cd114fc4a2f3324a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEA892200364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdac41f680303fd29a6cc5eb236ccd85d4f3930ebada90b29491140bb3b64c7. 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/DEA892200349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525921f7d75331516b56e3986989e5af48cde140be651fe976c2af3b4ba080b2. 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/DEA890300145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299d1d1d54f35494a506e8dd2f9c117bce1bebbe79b3000d0019a6afb92f8309. 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/DEA892200350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e70e738112a1e7fcd62d06e2ef7222456c2f5696030066e5bd219c6a009a27. 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/DEA892200358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268186fb027e65ab0f36333006ebc223f79aeb49f4b665eed6f0901d09cbfbaa. 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/DEA892200365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3073c24ba903c89af8209dbb0c03ff050f772266cd0cf77b52b15dd1204896d9. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/DEA892200351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6767f2d1e4b48ae232611477ea6bb3ae5fb9f5b54a7c8a669ae89cd9d0a248c7. 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/DEA892200359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58c83f763cdf92c3ffc904ac62d617b86ab4c03d25e9cdfdb084c9061550553. 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/DEA892200366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729fc73f04cb27116cc1e065410432a7be75a55565320bec5fb2114f6893b11b. 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/USDY42357216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28fae769636aa70b29e4f4b0b5b0780524ce8c817c61b8509323f0af2e3e0c1. 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/DKV6A0609907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49eb1b6c817f4254ec41e0e87e56e9d3b2181aa2fcb9b0c14f59ec211271fa13. 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/SEPQB8407010.
Upgraded in Gothenburg (Bonus Track Edition) [feat. Nils Landgren, Ida Sand & Magnus Lindgren]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd544a1d75100d6289c769a682a6ff443050a957369b1ffae0d13d885c40c58d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEA890900410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74443c6c6b6c5534a1592a0da978f90040fed468e20b46fb26ac7e9c1a863fd2. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA891300376.