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 0xd6322440a4feaaa6557e7884952a7d14b704841775a0dc77480f46e25927493e. 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/f60ac2cf-9050-48f8-8a30-f9bd7c471516.json and https://artists.proofprofile.net/proofs/artist/f60ac2cf-9050-48f8-8a30-f9bd7c471516.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 0x3a4610454bd661c5c7c1c7f764d977f28cc6d3636219f75d012cd07c01cbeca1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/PLF241704738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36aba65885f707d6d7ab23f40cf6e3ebbc049d5f7276c87e68f176f70ac5b525. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:50:00Z), 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/PLF241704746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22838f841dbfe7f4a4fff1afaf8e093c76fbee53933c76dfadaa218693f5323. 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/PLF242108231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5aeb4647f8dd78a83c1aeae31e9c39b4d6f66c856640ceedf0be36f7b928eff. 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/PLF242108230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22838f841dbfe7f4a4fff1afaf8e093c76fbee53933c76dfadaa218693f5323. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PLF242108231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088e9331468cb0febf5f5dbcafa6bd79f9b33bc47fee6cdcd66def42c4684819. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PLF242108232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6162727713496836b1677dc6b81e71e01fb0a3b561376c58eaabff587c758530. 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/PLF242108233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecb6bd61abaafed7e5100bdb82781a7a23d08d67e076d728703acb7bfcb5e28. 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/PLF242108234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf366b209fd2b06ef91ded3c7eb4cb719b6bce5093634b1fce0799434b2049ea9. 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/PLF242108235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b7fe1d58a0b7e927d5f6c0acef5b97239edce20a202693be51fc174c7d8218. 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/PLF242108236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab47c69f1413f8de450032379415272421918c17499c0e1961d64e7fcc1b9fd. 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/PLF242108237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18448d9b37129c960aae5bd94b38e28ed4e2c635785c4cba3af87b08502580f6. 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/PLF242108238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cea34d68706e1f9a0d15a684d96b9c34decdfecb761a0ca5adee3aaa897f995. 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/PLF242108239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df3cf7d00676ac814406714b2cd5cbd8c120775cf91e03947ec16c981e0b34f. 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/PLF242108240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9c2994f12f545b551f08f755c6c35629f138a97a2087890a544f9575c3527d. 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/PLF242108241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2005bfb79ff2312bb8abea7647013c09f171930a1a61041035f550b20707a8ba. 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/PLF242108242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7745ed75ad388a3db55752a740ba1cc88b599cd4ed338561fd364793715dbb. 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/PLF242108243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093da4bfcae45118eac89200caffe140dda6e56bfb68cfa6b3833cd2ddbbf6a7. 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/PLF242108244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11d4086004cff93881bc5e9f9b1a935ceb7da7b81b99518b87ed11961ba407d. 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/PLF242108245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb70e5cc8d39cd0d234a77ff16abc036aa6987fb950c27794f42b750137bc3a. 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/PLF242108246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8660ba4ec48cec0556b3af568a04361ce89c621c4d6d91028f446ba6f89e0440. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/PLF241704756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aea36812b4cab6c7af0648fd7f843733b054f374afa10ca550fef863accf66f. 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/PLF241704764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe725aa4c3e85067257b3009f15c9b70d64711dfab3d615ca5849e52b0b90b42c. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:09:21Z), 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/PLI360797810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b616744a765704711d743848d4520fe8c2c69a5d985fcd49e930461cce09a5. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/PLI360797820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00127449c76646d87c6917062a19dcfd5442c57c80ade9e49a50c84af68363f7. 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/PLI360797830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206a5cf1da7eb2beac605403aced0c845fd5e86fabd51f7320a4cc4d5be47dbe. 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/PLI360797840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b331284b1b56f31b3e941d1929a509d232d7d7ff39e5d47bb87faca05817e3. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/PLF241704974.
Serca (feat. Emzer, Marcinek 3Z, Kobik, DJ Gondek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61435fe735eb6913942938d1fc6ddad1a2bb6b36d64b11eb288a9eb0e5415807. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/PLF241705165.
Tak to widzę (feat. Konspiracja Osiedlowa, Damian WSM)
Siema (feat. Grzybek LD, Peja, DJ Gondek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d4a5bc42c1a34d602b4a8d01fd84576116e14f191aa3513701bd1e7b791b06. 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/PLI362929160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1621668896498508fa66d589cfb78e775d9dda800a02fc92aa1b6a07364166b. 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/PLI362894170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefa89b698c9c3dafe6d48dcafe83145486ced4ccbd983b8917fba22219d8dc3. 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/PLI362894160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8af79e55a890eb85971bb621b4f857e8b97c35bc915d32f2831cdb56703bfb0. 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/PLI362894230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c68ee55a7371e012ac0534ea7a86f80a080356281eed6049ef49ed181b7367c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/PLI362894270.
Tak to widze (feat. Konspiracja Osiedlowa, Damian WSM)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957371502e52125c0cc1a9027d12583a33563145d025981b6ec603f7ea180c6e. 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/PLI362894260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9265d52a3f324f87b6ac4fca2f6aed5e3794c1c4888c4c9797e652ce9dba8ccc. 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/PLI362894180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc620bf07187bc919ec02b996113d361eab739f086f1bb5fcdafb376df69ebc31. 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/PLI362894190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a96d04cc21279c8353538857564cc9347d832a8658a29ea3717d1e54cc66215. 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/PLI362894200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5511d9ec0613fe68f04d3eab1a3de440de50a899c8b4d604ec517a19ce53922. 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/PLI362894210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe94e4e3ce3e357694429f3feef639f371a49d926f1ce93749d056ff84b54814. 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/PLI362894240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246793fde2097cb7fe3f8aa23d36a666ad6f33dad28e133f87ccabe0d940f042. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PLI362894280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee44470f801b10914777ffda8a3679cd81282428b57d132f2c94bf3edbe3d41. 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/PLI362894250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7c27ccbcb689feca7877dc90ec7fae2824b2386ca67098149b16695f5482b7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/PLI362894220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed16b23b8692087868ac58d11b32de27f3acf795d0e2616776c1fc9bc6fa0319. 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/PLU941700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18dbace19aff2ad3d37d1c52b428b55f5e28b44ea3241b865ad5ea7372a12c7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PLT611820008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d6c3cae8a3238dad55ab3e8eb80412cfd8fbb7a124e325429a9c47abc2de75. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/PLUM71801219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad973cdb0f4d3c92d74b425bec923bc79e53d8af49f56fcd9b137e2788203656. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMFMF2224853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0700a8e777b2e97da9da630c8a2028ed47b154e5617719a5e6cd47a4dd5cac. 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/PLF241704836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e6ef68b6bb16735a29dfb6e383a8be85453f2bbed2aced95c34f4b8d7b4e35. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/PLC061705664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a3120e47164f650b99893d8cbc8155c4774f1c7c3b70d03d02bd090efca69a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PLF241704600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344a3887a8836526beab08af4d2b05eab0ba66d74ca148b60ec0aef63de6c704. 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/PLF241603518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb085840039149de6cba2c50dcb37d2fe6975585103ae11b0d2dba97428fa8760. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/PLZ461800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a2dafaf58de626e748ba8c8c42a0fc01b7b90ca2efb98fde9baf644a767b13. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/PLI365002130.
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