Leh (, ) is a city in Indian-administered Ladakh in the disputed Kashmir region.The application of the term "administered" to the various regions of Kashmir and a mention of the Kashmir dispute is sup
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 0x06aae1781f1bfcda46ac0a9325430a10fca01acf1e14d17be860ee8abc3c144b. 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/bc409d7f-03d6-43f6-bda6-b1a4d80904db.json and https://artists.proofprofile.net/proofs/artist/bc409d7f-03d6-43f6-bda6-b1a4d80904db.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 0x70250cb30d7e449b18b9ef0b4b3c952cfe46724211906a2202f996934ad61a08. 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/PLD111500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab932a8e06d6043f980955a27c3123a90793d54bfe4569bab704807a8763df2. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/PLD111500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fdda3e725768f0c9287edd3f9b6029876f0e6b83857d8ceaf3687c445b8eb93. 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/PLD111500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc878ca107cd7e1840a2b73489d9c319340aafd42f3ec0a27e1f7fc13e362d0e0. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/PLD111500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c2254aa78b53bc009f097a8c4907f4fbdb08389dac66ff402e92644e8a150e. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/PLD111500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1d1ae523a019bd11e02bd258a9bf3c28e0d1757ded998c3cd2b76f32359efe. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/PLD111500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5ca9de01368c0de68d60d80f4fcd0bbec03f643488c5e425d90a6c40712817. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/PLD111500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97acb477bf554190e3f83354aa06279621dcc1e55c229f14c317cad9e3122b9c. 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/PLD111500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d3cc91efe050753834ec0ae570def75dfeee74823f4e16fdf36d67067bbbc0. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/PLD111500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500d3138d5cf68ef5c8a687281e82bae9fea1dc06ad6198789b89af674609de4. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/PLD111700103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b9e46602b6a4e02615738614ce49b3eb09aa231c3f81429cfd220027096cd9. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/PLUM72200594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c360f652bd630dd40b0a8fb82bcce41b028586bbf1025ba9e0612b8c6d9a0c. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/PLD111700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82fa42e259d1c16cdffcc2b9d8d6f4e9d7d298545c97afbb0034630ffa6f8fb. 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/PLD111700106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24bdccecf8d0f22891741ea0e94b2ad7f91f7646fc59c89ff736cd32cb55b0e2. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/PLD111700108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609e578fee25828e06823ac04c8b68271874352d12ff2fbf37392748fd023f11. 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/PLF241906283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ed120c72d7421b2fa8232220344a0c402e77d15a8c7e40944695540a4cfdb6. 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/PLF241906284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb668ef5d1305910b8063a0fa8b64a528d85baa9b1456cad9be5a34a70d8b909e. 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/PLF241906286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2cb1a3ffeb6574bcc2a491076374c449648ece57bfada9a99fb9b1ef991ca26. 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/PLF241906287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f2cd2279e15aee9320361af1504cfe290fb2351594fafdb631a0e8af02d645. 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/PLF241906289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35e9096d156743815d653245dc05d48109f015f9359c3797db2af2d4ebdf80e. 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/PLF241906290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa69e2bd6831b5d59ce95e95932870f48da7cd267b1c2f36e19e844e886b3c05. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/PLF241906292.
Drugi Strzał feat. Jodsen, Dj Gugatch, Żyt Toster, Michał Kisiel & Leh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4d304222c4e2b9a7d88043498d5a36b9a96aef1760a493aa3abfecd197fd68. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/PLH181400385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52568be345acacbd3e100c366b1342fd10372348a504aaf29c4108d7391535a6. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/PLI361988080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265e5e618f6429ca4bb0c13a50b2b3f712cc6afbebb7cd681af91a2c745254ce. 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/PL2DY2301317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ea59c3fab4dcff404e42ffca90fe6dd5ffebac72098800e038c1b890d090a0. 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/PLD111700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2249c0ba690b1a32955b62384fd650a995af9d8db909cc17635270d32cd2fd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD111700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6457a5116c0d8d00c8dd0e61c38e02034d6fa8dd8e6499f20d6e77e185dbcac7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD111700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e80f2f4f783a47ea072eb81434e3549dc2596a3e69810b99aa34d5522c015a. 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/FR26V2076225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa17d2b1313b08f7f0b278351ebf38807788defee6a87442235579f7cfe882b2. 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/PLUM71701035.