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 0x650052b5c7c9e6fc49503afdd9f0c8402df068bd8b34475098497afe4abd3b23. 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/7331554b-678d-4de9-a0e6-750d86a7cd7d.json and https://artists.proofprofile.net/proofs/artist/7331554b-678d-4de9-a0e6-750d86a7cd7d.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 0xec7a0cab3728642d10fe3e697f828893a7b959b5e589ad2fbf0591885e999334. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/USHM81753048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00dd9fcf3bbcd29c13c5bd1110605aefb59fe88b3eb44b66742b46be17d2443a. 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/USHM81753049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d6cf4b18d4da00b7d98c86f47e536b7d2d84b81cf70849f36b49131ddc5de9. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/USHM81753050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302f36e303f41b7bec8def9931713a90c1d89cef9dd52a1421cf33c71ac70a84. 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/USHM81753051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2f53d22a5fe1d81aa1b827e88c8adef1ff9bcd78c35ef5dc1f21a26e627353. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/USHM81753053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2424704c5c53a4823a4416cc6a6f1e13347397e75d2356ebab6e8a0949d2f190. 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/USHM81753054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8310a94c9ae2eeb46986c2b004236cd2ec85da90830b0b7a97257daa0ca06cc7. 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/USHM81753056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae4b20ff6ef558d27c0ca341dc887ca4d0decd3f3d628532bce2ce09521f5b2. 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/USHM21783203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385b56cbde09706eb977935003de31b999a858ac668f69320a20fd3e7aa3189d. 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/USHM21783204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866c1251e9e741dff0cbd992f529de8ff4a54eb68d93988d5dca973a455fc01d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USHM81753095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71f1184ec599ba1eb1cef42b88ba7e2e414a9f73f8aa8c9b0601a72f3b4671e. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USHM81753097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fef8312c089a4b950adcf764c3839bb4977dcc64f9e32d5f9bbc3948080c73. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USHM21701958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4d1aab1758628e6b8ad936ce1fdf4cf26a8138074ba17cfc0d83bb9bd0ac27. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USHM21701959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3721f0e77e68f03526077aca66bd30958455b23f218a633cb16dc70d5c58510. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/USHM21701962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc20e8fcb491ddfd7b29bc392452db3b774fa81ceab9de185e8dafcb46d7d99. 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/USHM21701964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2adbc127d9baa5894ecaa50de057f3c72b28f877d7e4d57acff138b5c6ec0f. 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/USHM21701966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097c269ee07943b8acb39db323a73f261c8eaf6ffb208c572131e378c412dff1. 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/USHM21737385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1bb4c6c448771827da20ab7d71ed432ff6ada34813b8ecb0b697a9899fc650. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USCGJ1645687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ec12c8dd2960c05aa0237ba7bb5c5cadcd81904e892be70ae5478c50041849. 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/USCGJ1645689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee089ee34ab31c8b9feabb89903e44b80f2614188e2e9a7bd530a8baccf025e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USCGJ1645691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a917af516618c821f6648903f92e05764349b1d36085de55153667f26b8f2b6. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/USCGJ1645692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3424ee82542555213fac4ba8545230af55348f2c0a8f68bc9d60ee0d63b901b6. 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/USCGJ1645694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624e36926ec622e2881650aa25f5cf5e94213d83ab8756eee9df7a36de02fe7e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USHM21747825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349be04d3317ac8eb65dacc2f18449e12be5c2295009e33c8846af8996b29a2b. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/USHM21747827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba653808481c62cafeaa38893be642215aa5f600e6430ad87d98f64ac4ff8c4. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/USHM21747830.
Karthar Nallavar Avar Kirubai Endrum Ullathu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2066723fdef5b17e3f22bcc014c5bf57b526708eebc1f4870f922ddaffbdf232. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USHM21747831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6450761775a4e4d0e2c13a00a5e46e826cc3a4a1a50aeb4b1a9decaae5d35df. 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/USHM21747832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1a993d3328d3ad4380063e236007c3e3e7341555c780e1ff7c16b0b3a17823. 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/USHM21747833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e397dd2abf7a5c099dfcae6731a38409a1bf368b6ae724caa5b02d73d1e363a. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/USHM21852624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79df4c627926d2eaf83e14360d20af8ecb78c7261b16fdc05f190ed65114f18d. 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/USHM21852625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00bd5842f38340e5eb7301386cd7bccae01d7d66859e5b9d76210fd59c29a01. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USHM21852626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f92c849346cbd86786535a32efeff35e873a2f699651a46553d8260d6be5e3b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USHM21852627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd300cded5f83bffa27bb9b61bbe2a4b378c4cd97eeab7297d1535f3931e60b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USHM21852628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15864076e9aaeb64880f7c7097991720c74a90482b62c5093701df87d07ab31d. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/USHM21852630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf82938157d59379edc76788cfcd5730a31c860e3b94eb3e8010d8c56dc0a75. 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/USHM82253673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedef935477bf590185f446eef8a22d726d39d6999ed542a51adbd5973ca5e02. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USHM82253674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04705bc2f461f207059b8047b2d8265c09d0659fca520efe8f73bbdcfac93695. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USHM82253675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01af3790984dadbbe07372bd77f9ea47fac8bcda6b57e9be4bec55254b13c48. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USHM82253676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c15f1f0446cfd149d7fd369511f9838ac2af2c23436da3d625ec0463a3d76fc. 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/TCAGW2344063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84d3957c51d822bcd427226d13be7cfd56e9a2476d2c7a6cb6ce2445c40db70. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USCGH2421400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35877370d89f9561cfd5ce074a9c227eadb6fb8180c91fb15ec998e13559b9b. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/USL4Q2433165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef97d974130ada6688e5dcaaea19726cb815362db6b177544737cb79a4d388c. 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/USCGH2547071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5493251f6356975e38ab4f550c939615b13cbdddd1a6a99810a3d879d5879772. 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/USL4R2522727.