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 0x42ee9724fb46f7264db3432bd1be8dc7a3c8bffcb32800194d2052e18f4ee5bf. 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/3a35d58c-d059-4ae4-8483-8ef4005b3db5.json and https://artists.proofprofile.net/proofs/artist/3a35d58c-d059-4ae4-8483-8ef4005b3db5.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 0xf1376cc985048539859ab4438487547ad8162b96530a44e1ae4a89c195adf175. 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/QZPJ32201197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b40d1a99043aaa712bfdc098444ff4043827feb53d0538ebcd3c88f61a5c5f. 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/QZGWX2174337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6a895d1d5f9bea6ab5f24789f739b570f28412ab68f64a54d36e7ac5cb6389. 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/QZPJ32299143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89ef7c238e25ab0887951035f53c57adf4b906bf16839395437ff549461ff8a. 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/QZPJ32299144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19aa16b928815f45f2212dc3ffa769fd4207947bc9397e77c81f1be5382e24fd. 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/QZPJ32139074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9d7e57dcc47dcc0fc55b608aae9457b71c66d23a6c328ac7e411ba3a65d0a2. 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/QZPJ32299145.
Truth, Beauty, and Hatred - From "Hollow Knight"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae0cbb2b71fd42ec7f6ca82540ab5ed7cf58dbcdb490243bb8afef41c3933b9. 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/QZPJ32181201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5d17375b3a801e607556993471b57d38d4496c5efb9c5744b1bd4869c487f1. 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/QZPJ32299147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2744895c35ed4dbee4779a890da44ce0a402aac66f83cb6ba12f433a2b21dd. 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/QZGWW2091874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65615dc50b9afd4f1bc1a2b7acbf3f13f791ad4d60c7c24971b86a3f638d3f9. 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/QZPJ32201204.
Vs Ho-oh (From "Pokemon Gold and Silver")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96623d9ce8804c6b8ac98d5ab5b2870fa395e13f194ccbd37d94a226b1fbe38. 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/QZPJ32201205.
Groudon vs Kyogre (From "Pokemon Ruby and Sapphire")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03899b53214d88a965c563a45c2f6da3e3873e59fd2790ec416528390158dc0d. 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/QZPJ32201206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4a11e7959126b146dd546733aaa53143a522569bfc5e2f88ef00a5ff0e32da. 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/QZPJ32201207.
Vs Kyurem Black (From "Pokemon Black and White 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488b6ee0af04955d863c5fe23fbc9b95f5af2fbb1c7816269e7dc9d73fe67cff. 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/QZPJ32201208.
Xerneas and Yveltal (From "Pokemon X and Y")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65bc3a9395397663d338f8073672945bbc32007a10252c43ca12a9c056dc5aad. 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/QZPJ32201209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae0cbb2b71fd42ec7f6ca82540ab5ed7cf58dbcdb490243bb8afef41c3933b9. 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/QZPJ32181201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce630ef5c154cccc19b96ca24788ab90c5c2d657ee7b128e3d12b0a624dd518a. 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/QZPJ32181202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697e24cb8b353e01f2ff766d0388dcde478bae5496f84a58c14c3f2037026555. 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/QZPJ32150912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9cef1794366307c3ed591fb0fddafc7a55c9883e359a71b7c0134660468c317. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZPJ32181203.
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 0xde318a8e072e92af5a0009e610490de821fa6c28d757c86ac7316153ac198bcb. 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/QZPJ32314526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b383202d25fb08fd45da260d7c9e623c9c4facd8fe03d9edf9d529799399a7. 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/QZPJ32314527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a397a08536a00a5af2a66775f8dfd4980b8d515420bb62f9c9d8916345ec72. 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/QZPJ32314528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad2da9e96c990de5737673e1f20845ed7eb199050a594d65b43773c8b5fb892. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZPJ32314525.
You Are All Bad Guys (From "A Hat In Time")
You Are All Bad Guys - From "A Hat In Time"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af3554da26b8c955b85b2b28eaa05859f66709f9ef47ebe36f4acfff2f2a651. 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/QZPJ32389947.
God of War Ragnarok Theme (From "God of War Ragnarok")
God of War Ragnarok Theme - From "God of War Ragnarok"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c5450c88ff27c7e307f6cb9a9e30736cf0646f7a934603b85e356d45a8968e. 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/QZPJ32291074.