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 0xf113efb9ab297be73f1c6f57d98650e156c73fc44fe704a4d88b1e7658f3fb4a. 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/c9efbea6-6ce9-488e-a2e3-3de92db0acf6.json and https://artists.proofprofile.net/proofs/artist/c9efbea6-6ce9-488e-a2e3-3de92db0acf6.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 0x5edf4c7dffc79cf108fb84b3dd4f126bf5dd170a3e5db04566feb5b241cf79ff. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLW7D1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a51803d3e22237b95cec9067923e899ad69c26b602c7e9f6589c0d78a7937c2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZGWW1981935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012663ba8f7f00b6a54c4ea0bbece77189f001e85284c4e4583e5ce26a769557. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLW7D2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aec9a65a3d2f6e4e983ac221d12c45fe5703b8ddc484f7e9bc5eea2d8f8814a. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLW7D2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfddefddf1cf6606fa1db60f0d58fa4fdcc2c903a8feba47fd19acd9f8f38c1. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLW7D2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f798efcd821da29706f031288a596d8d438b75bb691dc17f3ff95379dd3555. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3616bfabca894bcaeb0ba33ba7718ce6faac650114dd69acef30396fd0367fde. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/NLS242000089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d8eef4aaf701c78912cd23268e24e124a633f316a10053b6f96b9dde8a97dd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLS242000174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5494eeeb753f60ee0293be295b30e71be0a4fe6d913613a51c49aade55e42e03. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242000331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c327c27ac92e0a5c70275368608613b8ab59bea3d028e3bd726c5aa5cdc95c0. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/NLS242000363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292554c2757d7bde3283fbef2c5364932de79fc6e630916586595cb9d6e1fb1d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ba22119e77006f25b606d8186d40fc1d20b2436cb87a944a6651bdd3e3d23c. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:28:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242100151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b5e56eb3c4dedd7a497f3176083a21750ae5587c17987f37dff15b2667919f. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:20:34Z), 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/NLS242100062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c258dd7ce6294a267a6170c586553a5359296ed2b9819ce33aa8abd83af3d7. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:05:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242100187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bbd8b80643238af19d5307d49a94d2c15f3ef82157514b06b6044c837924f2. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242100209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fb48c6836ed5d502770d788853b09f6d0d519d5e6d5ce458091a95ab630845. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/NLS242100288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00e8567e527edda9bef1408977151888208af1be4b56e6c98fd1538951a4c66. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:35:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242100356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356109784f4b4beedfc373db3f74640306b0fae0ba2963c24ac015d327988f6d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242100376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346a5235986be17cfd81d7dab5e089b64e8194dcf0930cf7dad848db8d298a21. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NLS242100398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bd2cfe2715a5ea56f8d68edbfdfc5798d3288487ecdcecbc9796bf26d54c1e. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/NLS242100439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7e4f8557af1fba85f8845e0c3224938d142f011062fcfc6dd546338a83db60. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242100570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e14716bafcf437455e6c33887582b7f520bb0f006d7a51c7904c4123928309f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLS242100596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68af391e433b517e02dab122b4199a456a369f2197bccb85d82c2828598bb779. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde09395f105690f75b9dba9e0b7cd2a20d3c29436bd86ef48248d6620740a40. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242100597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741879d83d0a83621bd4f98cb03a551c98d0d7d70f3e25e7ba80fa02f875f3d9. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0ce00bc7c02bb906fadbf488f69192af5c8ca5e3304fdc0ab4ff1afa2f462a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:10:52Z), 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/NLS242200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429f9546845ba1efbe0a9776178a0bf8a940b1b5819d6101d75e82c4e354c472. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242200098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f677b652c08fdf08fbc042ad479045ea7fbd135cb76a4502c429ff8d7cd1b0d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLS242200129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8b4a5f36684d35b03b075688eb642701d82b40215ff72ec872f1d75b76e6d0. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:08:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242200140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612b4b319e5ebc484f1ffc9d3aa8bd1bda93dd1a7e47f3682fa6886bfa012840. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242200160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6277ffbb81f70e9c9af3b6692257b3f5d9d9437f1989af056015e1c331b488b1. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/NLS242200396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dbf427e3281540d8176c192934a09e1cacd39e753b47a43d7f7f1403dff8c4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLS242300300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfc703cd72de422651120329640892602ca6ff5f4a5e647ad31a4b2830597af. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:33:33Z), 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/NLS242300308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea24756f4fab82eef53ba8e4b4fb914d37b776c490ef55bae83e5716b3107e7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZES71974094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d2c7bea88c18b1a0b12ec5e74b355475b744f30abbc9aa8772d5a763dc237b. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b582fbd4260fdd4dd1de55b64d05e2d5313fe11dd6f9cc1df284fc70a288f6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242100219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78685dbde9e7d074622d806f9d717140947546e192ef4878e8dc41ccb382c493. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NLS242200170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7521bd03cb27795eed7679d6519b585bf1bf9de18a4fcd9450780f4d8e28e0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLS242200345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0453c0292b061cec4b883326ab8d98e71e62b19f0a39361cdee183cc7012aea3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242200406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b082d947b2dc8f5e32a679fbe814472e5d0f63d24dd5ff46da7f2d67f2779b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242300365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22aab56efacdc06ecb91dc2c075c706ab6e338b6ac2b15e047e683fae24f6467. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NLS242400135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d44ca15eeeed7ea0d24ac34d835782178626594689dceb2b5f334a46a76461. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLS242400195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52168dd150f22417cf47896a90ce42ede83cbf402a36922d0efc3e6df62a386. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/NLS242500089.