El Gato Negro (The Black Cat) is the name of two fictional American comic book superheroes created by Richard Dominguez and featured in the Azteca Productions' Universe. Both characters made their fir
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 0x5cd966c19125edb70b3ac41863c48ecaab2b1dd64aa027d1bf440a391f00279f. 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/cec1a786-db34-4f72-a3ce-a149142cc72c.json and https://artists.proofprofile.net/proofs/artist/cec1a786-db34-4f72-a3ce-a149142cc72c.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 0x619c04bda7382f07026ab4137c3ae3955bd7ee8e9a1cc57765dbbc73770a5df9. 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/COATT1900304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0a1bd0d4bcf373036a25b2bcc6499807691e87566fbd48d285b509951bdcaf. 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/COATT1900305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52dd018acf712b41f3e2ed807871e60b81e750551fb03e838fe5397f8df7331e. 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/COATT1900306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05e51c379c182c79f1d13bc0b04849862ace07b3443d29d41f58ac7a7c48112. 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/COATT1900307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebf2eb8aeea5baa6af8a1a2afb26026d142d8d71112d34a95dd12eccde13c67. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/COATT1900309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ecb73e8d856b31ccdf556b488d04f89894f159fb59e341e8f0a25dc94b8223. 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/COATT1900312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9adfd35607def45fec10338f8121ea9a4f3b99f24eea12f398bf410ead068b0. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T14:37:33Z), 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/COATT1900313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a7769b770c56eecea0a1b2335c3b28b140c28690efc4879150a259fc45d7c1. 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/COATT1900315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a13a060a1aa0fbec1ee025e292cef30ea6524e9fb427817ae8d51d316a7235. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/COATT1900316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835c905235e9c422c0fee1fb9d006db70eeddb757588143ce466c072694ca7d7. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:25:51Z), 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/COATT1900317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de603eb403f92956d6f532832e864bc989112658d60f2b2015fd71960791f6a. Chain 2 (Bitcoin): anchored in block 957541 (2026-07-11T08:23:18Z), 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/COATT1900319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f38da75202ad3d7930701ad0845ef90066ac48d1476bc0f63885c325c611ada. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/COATT1900320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9047a0dc9c38f044018d6e1f3ee5b0928fef914a3ff3977a501c876bf27cfd4d. 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/COATT1900322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259fd79d8b54c3a8ffcaf1109c5985f304efeb5f96c60f10eeb671390b58b2a8. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/COATT1900328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e177a7b886d7ae134450f778098ce65d19bf7745a1ebdddf5788e701efaec65. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:52:51Z), 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/COA9W1930411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728a5c51fce9860082d5da3d0aff9ec4eac1b5488ca20f9ad2e32e0d79eb3692. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:05:52Z), 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/QZ5AB1733797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd019ca26e815896837bee2b19913115fc7225fd0724dcc249cd86d17d0a6b96d. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:51:35Z), 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/QZ5AB1733805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58280f8a98853d2a54e88aa7b9aafa91206e25f19320d5dd18a85eea8445b62e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZ5AB1733807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abdcf50b480659fb383e503654774e6910a415b4b81b84f553949944c78e861. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZ5AB1733809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29975d0af7f128499abe418d101629a28417edd12ad0637c815b6ebd21d7e38a. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZ5AB1732615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8d26d771930088c07e31854a6b9b65a2955a64be6f4c4502f809838ed584b9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ5AB1732616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddb6313ffd07aa576942346770fa187acb7f2f51f8ebd2fd9bd2463c5ab7e4d. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/QZ5AB1732617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2621c4d30f1d1b8e0aeefcc53dc45d5d949f891ec767fafd54f64d1e242ae45. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:47:34Z), 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/QZ5AB1732618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb98c5c0c7cc415627564adf980f40a7f4e4b69e7d2729dc68e1f2a22bc773a0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZ5AB1732619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24a852df5f01a69a3668c2711fc2532cb2a74a859526dd7c5f779d106fe1e1e. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:59:50Z), 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/QZ5AB1732620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7017e660d1f39fca4cc554f89628770091a60b993d261a69e1e146c9e7903ce0. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T21:01:29Z), 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/QZ5AB1732621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0700351aed1ad1d3ac2513dd9d4b7432fc2cd49c7a92178058b069a4f9a2ebb7. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:09:24Z), 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/QZ5AB1732623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e8f4a69e49bc566ad964280f3ea0ab3b286001acb4c2456674ef87cfae2dba. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ5AB1732624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd08af1e215c5b18511fd11120dc20ca973a190e1722291fd9b975fdfdd7956. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T13:40:37Z), 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/QZ5AB1732625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59778393e4dad22a695610ce0649a119973593df93802401f8851d08c19b4ef. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/QZ5AB1732626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbea9f9281912f1d32033132b98a729a7fa5703b6a0aff245f3b2e343c34b003. 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/QZ5AB1759054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074ce11e5f402c91b7d654c6386ebcd249239d050c88631f4c309c7d1a0a584b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZ5AB1733093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb655d71fdf62924679d31276b95d1499165ffe177d0d4bdafa233a619d3bca. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZ5AB1733099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05e51c379c182c79f1d13bc0b04849862ace07b3443d29d41f58ac7a7c48112. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/COATT1900307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebf2eb8aeea5baa6af8a1a2afb26026d142d8d71112d34a95dd12eccde13c67. Chain 2 (Bitcoin): anchored in block 957835 (2026-07-13T09:48:24Z), 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/COATT1900309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ecb73e8d856b31ccdf556b488d04f89894f159fb59e341e8f0a25dc94b8223. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:33:39Z), 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/COATT1900312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9adfd35607def45fec10338f8121ea9a4f3b99f24eea12f398bf410ead068b0. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:25:42Z), 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/COATT1900313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a7769b770c56eecea0a1b2335c3b28b140c28690efc4879150a259fc45d7c1. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:21:32Z), 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/COATT1900315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a13a060a1aa0fbec1ee025e292cef30ea6524e9fb427817ae8d51d316a7235. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/COATT1900316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835c905235e9c422c0fee1fb9d006db70eeddb757588143ce466c072694ca7d7. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/COATT1900317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcafcbf62be508d6c2d91f2ec8fde7e63e09e69957f3b9dfb978de7df57362c4. 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/COATT1900318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7266088b26095658430c785ad754312d7b1dea2e8e81749b15d44a2fc4170293. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USHM82049143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8a4ec6cfc23ed269bb31f8b61e120379e6bd1e7fc421b51d5318ced010c61d. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:32:26Z), 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/USHM82049139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad419b38041a184bbbe7d6014e6056b7b2775c030068ef7512440f97227adb80. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM82049140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa87e3669dfd4c7b14feb1e1eb76c1c2034a1b66dd472ced8032936f0a7a08ba. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:45:19Z), 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/USHM82049141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362d7ee7b6c7845675ec10e55797e4a14bf57d8f5ea07d53c8faf1b474c77630. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/USHM82049145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb858ac54d3f47e4fb5551e79dfac6d1ef96fc6de5928127e399c1f6133c63a46. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:44:48Z), 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/ES71G2337986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ee85982a868d31803b01e8e8a34ec11197eef137625cbf30c557d66f9fb341. 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/QZNJW2435746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664d7523d9424d575e183ef148c7b928a424f4ec64fdee7a9f7071e64386236e. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:46:31Z), 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/QZNJW2435719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef06d1b368fee49d8c4eb288d3f71885399edada6a831fb81f60ae843f21c8b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTVM2464728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa81a10454f8b7da620d33c90e43538f32a981db8dbe2a6fdc0419f1a9316d6. 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/COATT1900310.