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 0xafcbad399afebe3886d23642bb2b165f82e03994ab4430408ae5f65a9cb4c773. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/335b234b-e982-4ec0-b603-d557e02800a2.json and https://artists.proofprofile.net/proofs/artist/335b234b-e982-4ec0-b603-d557e02800a2.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 0x9363a908146b85a7efa1d2177adc6b3f86059370dd92930272c9e54b33aa20ba. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/IL6721700698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef480beee1cceb52ec4434d37b4d1f4f79760529eee530d933343be250afba18. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/IL6721700699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9b8b2bad9af104baf9115835e6933f7fbf6f4b1a01dce720a4516f4e6ae8ae. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/IL6721700700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d1f8faaad0557b0baf5058e05040112dd44a0cd854d763626ed7fd52ad54c5. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/IL6721700701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4bc9dbb16cc8c2efa60628bd6bfb6be97bf897d962e1a775e4d5567e09f61b. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/IL6721700702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59acde005a204435ada762826bf805d5afd96d2a98241056e88525ade1e351a8. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/IL6721700703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a86fa951fc9aab1217932b3f83f31d1b09b5726196e7a34d44da5b00be7de3. 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/IL6721700704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5594dc006ee7aafd6b9b989e095597f21847c5fcc492efd98bf04d3f872f748c. 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/IL6721700705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f184f0ff861728362fe6c01dc5d17bbbc346a5d5056b80f3161dfe69e74b616. 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/IL6721700706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14989ac25131ed6bf8923d1fa9b0c6ccb7364f7676c9dcd45335a56b81434adc. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/IL6721700707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c456a2b01fe44c0bd805d46e77a3856c84b9c910455cf34727ff353b52151d6. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/IL6721700708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3331b37f7ee236ff53cc686d2d57a7135446eb4f52a34b8e981e4b40f90e1e. 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/IL6721700379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57c3629c01bdf1a91f14870551824cd41d8e30ab6e9a79ccda1a6952fa72726. 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/IL6721700380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6567ddff07ba84744d8296d7f733527085d3e26c144754cce266b324e7724414. 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/IL6721700381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad867c77204fcc442201c00ac7fb4f09d6f561f748aa4c72ea3564146dcee712. 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/IL6721700382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ee32dcfc954e5d0ce5d46d1cc7670ec89d6b93e8cad4ef5145fb1b23f6a0d8. 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/IL6721700383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6986bc5c6a52665911eb246198acdc4fa792a58bb0910fa2cb11016c00b5317f. 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/IL6721700384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7940ce2c182e216582e402abf039aee58724aa6d330cdc040f519cc3bba249. 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/IL6721700385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ce5893ad9f6dd59e0fa7b100f0e9a5d2a48800cf80146200ebf6225b9e294f. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/IL6721700386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc5da1f9d2ffc9fbbb19471c82f7fd4b4b282705248e900798ce6057daa4c56. 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/IL6721700387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9363a908146b85a7efa1d2177adc6b3f86059370dd92930272c9e54b33aa20ba. 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/IL6721700698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef480beee1cceb52ec4434d37b4d1f4f79760529eee530d933343be250afba18. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/IL6721700699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4db301940821dbac86dcd03514c19f1d8a5eb00e4012c6fa2d1f7ce70ecaf1. 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/IL6721700597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295c9354389a787b776f7e5f58bd1f8baa5f0ee34f875097238bd3613ce4c8b1. 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/IL6721700483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6180da692ec868ae7a6d5dd39e29c0be559c85c4a72516d36b4ebf8b7cd851a8. 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/IL6721700485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa9e9bb6953000be26bb32ae83603812eaba262a0deb12abc276d1cc4764781. 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/IL6721700486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49df40c93b078826b8c2c00c8f060555f7cb533cd74fc2017e369246cd76ad59. 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/IL6721700487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295c9354389a787b776f7e5f58bd1f8baa5f0ee34f875097238bd3613ce4c8b1. 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/IL6721700483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6180da692ec868ae7a6d5dd39e29c0be559c85c4a72516d36b4ebf8b7cd851a8. 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/IL6721700485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa642d11e9f6fb6affa630c4514d5eea27adeb323038b1c9a6cb22b52d4f513ac. 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/IL6721700484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09dbfd6f0bca1d758d5678d3bb9830bab480bc119c467b2a4a39e8c166813371. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/IL6721700432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ceecf9b7b9da536c20d6cdd784ff4bdbd64e51e91d705722f1fa8056b02c93a. 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/IL6721700406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afd8394ae9cf8f8b8ed938775532ffc1b303ef7ced722e046268994896fee79. 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/IL6721700684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfb9c318cc7490cf625f510eac06a7bb4877b7a2395e4f110dace0551a34680. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), 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/IL6721700686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07357d50304c5ba2233510c9d29d51d5ab007e919d2c9bad18ef314054ea14fa. 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/IL6721700687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bda71d9f222d1c6f62a40bbfde20668d58e65ade61275e3630722035178f880. 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/IL6721700694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4ebee667a54095b534ad9bc6f5d11a6ccc683441ac898db4b5d188ea7282f4. 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/IL6721700695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435da6c12e570ad96552a564c5154251376643ca4dec763ca06c66a7ec639083. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/IL6721700412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd540bcb73b631809818b5733cf91ae7da9dae7831206375ac612114abcc250. 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/IL6721700413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcfa5ff504e0c9b6528612199f3f1695fbeec4f55de72569a62ab12d4145bfa. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/IL6721700414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9265c5d365ab2c56fe0f74fa12a4d0dc96debc8808b463b56dd9faa93925ef2e. 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/IL6721700415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfc6fb137ca334c66ae7268331c50d372a73af07016cf735bc9584a7932402d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/IL6721700416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7288e3920d804454014a71197ddee288d3bb8ad9a69170283da00bf2583c6be. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/IL6721700417.