1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb471827b5405e02866fca60eef81b1bf860e7d4d4727d3990f61f07e7ff3fc4a. 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/ba157ad3-6f58-44f2-8041-5cf445d1635f.json and https://artists.proofprofile.net/proofs/artist/ba157ad3-6f58-44f2-8041-5cf445d1635f.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 → block OTSBitcoinBlock must exist at that height 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 0xf26aab8f42e0ea680c1984e159226f8aaaf622e9d2f92561b559354ed2b83273. 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/QZPJ32132236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70e9a8b29a2427e8c81a1754dc93e3cffba2d11d493dc5ff9a9071c57232096. 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/QZGWX2121058.
The Only Thing They Fear Is You (From "Doom Eternal")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e808a59dc45fdeaacdd6a8d16dfe44393d13901e4f805fc3e19409b1dcad555. 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/QZGWX2121059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ed3cbf5294783f2be9327214e930512f25e1c76e52a16b848506f8b3e263dd. 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/QZGWW2121496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ce72e2aec528a0593201823d1dd05481b1e2ae2c3a4789747445581d5159c0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZGWW2041391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd48a4721f5a56d07813303eba0b2e2e20dba4e8908a35f9f8b64a1c33b886d. 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/QZGWW2041397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdff4fa0654e83f8742ca59d7733a4aa563ad1ba25e14011b1f9ca0a0edf1fb. 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/QZGWW2015135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac47c0222c50d3a1479f2cc3865fa9f8f3f088820d401e20ba366cb9de965f8. 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/QZGWW1936487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a652863da1ccbc8244cf101f2b0311db8128f3164d04291a2a60f68cf2b4fa5. 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/QZGWW1936488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedf8eabb29e98716661a9222e0bb9c26c19ac9252782c9bba70954b2c93d12e. 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/QZGWW1936490.
Decisive Battle (From "Jojo's Bizarre Advemture")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f3f21d703f4f6b1262d265e789d7a6e176d0c9b511a1ed4f2b70a15665363e. 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/QZGWX2037752.
Simpsonill's Bizarre Adventure Four Plus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedc34852c1ce589d0634115871ae1098a4540becee5c46d399f8d1cc01b4795. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZGWW1962752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdd489e514d81a3dcc1cc895045b4b2a24d0fc25bbfd7f15a74e8aa776dff3d. 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/QZGWW1961106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65588986eda5851bf78c2190bbe037af5c830d8f9d9a6d6e93eb20b97a23ca2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZ22B2097429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5c0321fe9f9b804dfe37e800f21158a7749b9099d943365ebd6b14cb30d40e. 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/QZ22B2085099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa770ca9b01a393bcd961244fbecdc94a22072d99b0e08235fe4568c05c393ed3. 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/QZ8LD1915048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b22e09db9ab6a9b36043bf0ca044c3835f66fd16d3bbd69d73e80ff889cf878. 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/QZES81866181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35b2b272010caf2adc8faf32e3318092c4e42e59a13fd2bd7e37efcc6269024. 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/QZES81837450.
Gurenge (Demon Slayer: Kimetsu no Yaiba) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a40e44d890e6dda47d05d959c74d74930a1cd02804dab080c146711e8f1c80. 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/QZGWX2195289.
Inferno (Fire Force: Enen no Shouboutai) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef1a4900733fbf299fd551321abbabff38b352d5c1cbf73f9520047304210cf. 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/QZGWX2195279.
Shadowgraph (Boogiepop Never Laughs) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc94c09cf48791a320208dbdc04aab4f28ecd3cf07b7f85a384a444ca3917e6. 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/QZGWX2195278.
Again (Fullmetal Alchemist: Brotherhood) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7275a55b800314430f6b4a8fb1ff753a607d40cc59aba3e5d23607d193aa603f. 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/QZGWX2195280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa704475ae81bea34a110ffc13a4327dbd3e5cdf48778aa4423f6dd16bb13bbb7. 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/QZGWX2195281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a91dbcd7e07d4ae11467e01a3b92a21818587a916ae93a4202d474a49d68929. 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/QZGWX2195288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602fea517aa2d110158616fd6a72e2abedaca8f2977daead556b3225c72cfe63. 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/QZGWX2195283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858d750e8f5f4e7e342ff16a4779796c049e7e0f0930c79091ddc92aba047c22. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZGWX2195285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ec3e881ed12e055e60170a384e6f245aad3cfe67466bd21fd66626560779fc. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZGWX2195282.
Blizzard (Dragon Ball Super Broly) [feat. Simpsonill]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d27ccf3090d62aad1eb9e94d3b21672eb666b35c015a16b569c9dbdf659fc4. 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/QZES81838038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4c00c29bf5bd74fdccbce06c9dfa3b3cc5ae5519c430607b20c747e72303c5. 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/QZGWX2120071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72e4deca424f5a6282ac0742f3d2fcd0a28a87daef968303f41f51a1278019d. 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/QZGWW2115620.