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 0x233ef6d9e7763d9093a41088152731ce341bbabda1fb178fe613cb2a708291db. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/144dacc9-ec30-463d-a02c-41fc9ca9ce98.json and https://artists.proofprofile.net/proofs/artist/144dacc9-ec30-463d-a02c-41fc9ca9ce98.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 0x7652274d3419d27d3f15d894008246e406851561e7dbb656839a937aa9cfaa76. 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/QZNWZ2337052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3b1329c29303c10e8e96b8b4c90ce8711ba049155f1bfe048c4d4ba9ede2e1. 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/QZNWZ2337053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d303ef48426509912178bfce35f2cb064337d3dffadcd873d4ff88e0a0c924. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZNWZ2337054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f550233b6c1ad54d0c59736673a42a6ef326f1add2af36571c4a1791fcca586. 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/QZNWZ2337055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7ec01a81b40a9de642b19f461f996742a826e7b1f40f3bb203318bbd99eec3. 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/QZNWZ2337056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d52633470cb5abbcb0840b2a5b641db7a1b7e756ccfe81de8bf3e66049fc17c. 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/QZNWZ2337057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb861efbe1f3197bd4cf9b6740e39d2b750b28daa934bd8d0f7d972e021d26e55. 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/QZNWZ2337058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33c79b9528d9c7a879696e325f1622969070250ef1432c3c03fabafaace725e. 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/QZNWZ2337059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1a4f5a9b8321b49d4d55825cfdd841e3523833bc3005930ce5038d049bcde4. 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/QZNWZ2337060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260c73e45086af5a53fbd8a1ae8f43c7d53ea7f5df6a888406f609337938ddb8. 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/QZNWZ2337061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46894248e1d8b06cd6e57746edd872dbeba63e38f7c0104b1590012ee456d67c. 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/QZNWZ2337063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a016193ce2737e2c106515531e5ca7d48af4af878d4ecc0d9516d7917fe2f0. 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/QZNWZ2337064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc23b94c8f1337788a362ff8f62faa1e2f9878cf0990504d2ea5ba08338a43fa. 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/QZNWZ2337065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d81ac11b52f3214f12777c0118e15a01d8b39c9124567a8235f6c0fb80b8b50. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZNWZ2337066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f64031af5668d6aaf51ab1b2a1f7876bdea9cb3e820272e44f55161a164b4e. 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/QZNWZ2337067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55fa0ee92f0fa27494922ae00e123bf519d7ef9c4b6a9b9833ae98148ff209c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZNWZ2337068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63851efbc0d1b64b49e3cddd0651fd8978b59628e62a0b33de6cccd8a9acd1cc. 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/QZNWZ2337069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b762e528504a5e78b8b5090d49d9f96d2e34b1ca82efbb3dfcd75bf7c1ba5b. 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/QZNWZ2337072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2976bc81ee5e090b4bed55072c7b7712afa3e84f649d4b0262ba7f86091b5cd1. 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/QZNWZ2337073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb532ddf7e6b7b44650519d112f2902babbb391460ce6edfd032a74dd380e834. 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/QZNWZ2337074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f45ad3e99133ae15ff818b3623cb790b37919eff6143052be79e4919e8af8a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZNWZ2337075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6224ba69093e0ad1cc13945f9e31230d5515a3d74258e524fb0e06ae93963a49. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZNWZ2337077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce14e515869fb0314d32c2e5e24df33deef6fbf2a0f073e6dd8eac4980bb200b. 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/QZTB32476637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63194a4613e5ada9a806f7cca7d4ed87ba5a821d6158d9f949d318c6b032a544. 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/QZNWT2278047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c34773eb196aaeb1c85ed35aebd6ac88a4bfcab5df538134de7b59420f55d3. 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/TCAGC2243972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9527101c272f9b1179cd1034f0021e2e045c0d80ea461fd90b539415ae782b9b. 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/NL4NL2201018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f2dff1eaf94ab731740110927b4b814dbe2d9e94b19bc3d07df273b11f017f. 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/QZMEN2365870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537aa1787f15eec2c23a7c3ef3fe025e26076cada7c4901b05137b8836548b13. 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/QZMEN2365871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5e00c9bc4c9acb31e2dba480b625f616f0bdfbac9333344702fc65b62f3099. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZHNA2326023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181eae0c2b3a26ef2dc1d4157e45ec8a047262696bfad5a3295d4737036d6eff. 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/NL4NL2164591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0f29f55a0206caf39fc64ce1fe24acc458dcb86b3d04f6888bd34a8f7c1305. 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/QZMEN2365872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca83b585cb03e56eca71d9b04f64faa99f7539c727c3a55a767274bfe41809c0. 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/NL4NL2218732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf884b0da3e2ccce7966f9076dc862e2c06e733ba7a5c5e11cadbc89a8df3e668. 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/QZMEN2365874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b10240781658dc56809f939c488d7ec882d2bb6c80cbba2aa9dd45d3c74e88a. 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/QZMEN2365875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfd15f7992bd50a9905c58194754b87309621b16458359c15843f89eb01b617. 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/NL4NL2164592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697bab5b8c48392a2af307ccd4600257eb4f7b3732eb49a6515182dbbb92939c. 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/QZMEN2365876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c65afc6160a92530d10bcddb8a5aa1a237a6a6247db292bf3c726e21cbb55b7. 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/QZMEN2365877.
You Won The Fight - Zyrius Remix Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28e485e7baef4f7a74827c19213a5f174dd5e5ce953049ecabf2f8f2925cb39. 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/QZZ782454555.