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 0xed74c7b7b824f8bfe1a21694d38c98e3f9eb7b9930f16c525a66b816d8f154f3. 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/8435a1b9-57b1-4332-9107-8f9493cd36ad.json and https://artists.proofprofile.net/proofs/artist/8435a1b9-57b1-4332-9107-8f9493cd36ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ROCKMAN2/Dr. WILY STAGE 1 -OMEGAMAN MIX-
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 0x70829b52f735199f33e9bd9536e2fd8b839a594b1a01a972c4c8d61d3bd8ce97. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/JPE101217390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d6772a3386c9e106f964e4b3593d1d896e86d31577c42661cda1819e8b70ac. 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/JPE101217310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a2a044e4f6464faca2fbe05c6b260047ba93ebdbfd6f714ae79fa51735a6f0. 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/JPE101217320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b90a7c7fb2aa3cada0be8f60394dfd9193b90200bcb1122403fbc7d67de947. 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/JP92L2406000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26c848832e8355baaad9bd860b578e0a336067410eeaa36f375be29c0f997bc. 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/JP92L2406010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0926d584f3e4b3a764d6b1ab0f161c1a2b3c8546a343af289df8d198e78734. 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/JP92L2406020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a46c5dc8e9a3852150606f24dfe0482b40ec6771f9df9ed4ab225c20e5b95a. 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/JP92L2406030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa645d162c34e31a9c1b54833a8476797d4b93ef2d986e7b7ef75e9a665a1e5e7. 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/JP92L2406040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5818167f7630d3eb2bd57d8feccf1274552f80aeb667d864c6562e4b6a4e707c. 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/JP92L2406050.
Mega Man 2 / Dr. Wily Stage 1 -OMEGAMAN MIX-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d2d1ae9b1e9e09f334edb6de313e56ccdff2a01b3bbdfda33e33f76f3c1823. 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/JP92L2406060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cddbc16501af8c12bddd85d5b58256a779a2e95f5c5dbe608362e134ae02b1d. 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/JP92L2406070.
Mega Man Battle Network / Theme of Mega Man Battle Network
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9faabd17a9ac824bae9f9988798f785be274833c6e38c9014b8d8bc0896e734. 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/JP92L2406080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54266f60ea4c2d0c4512a08dd96692210c5e58aa2a273fce55d4194ee6caa9b. 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/JP92L2406090.
Mega Man Legends / Flutter vs. Gesellschaft
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829524752a7125f7e6fe85fc4c9494f3c14ca54bdce743f0d9504891f584641b. 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/JP92L2406100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85327f7c62e080af6c28f01716bee1a4b5d9ee5c0d23138ed922696dece37de0. 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/JP92L2406110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926d1f507aab206bf31105dbc72d591224cfc7fbe98a8d0fbca8fb997057d200. 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/JP92L2406120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe892e5250097042706e377685eae254217886aa2eca2e44f4ecc60fabdba8595. 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/JPE101217460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf756d673c1edecc721ee475887869c4e6d8619ac14b9fb1d0c19d1f0cd872b8. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/JP92L2408340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f28344f8c192abad0d5ddd30ad2ed872c318cf76e0cc4e2c641e92daf892eb. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/JP92L2408370.
Mega Man 5 / Dark Man Stage (Piano Ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe110925109690371fbdb3d3def65c98e6f790a3f7a91759adccc125a51ccf05. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/JP92L2408380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfce4b518fcc0e80b638d68bf20a627e0c1417269bd6883ef35558bd8be939d. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/JP92L2408390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ca5134d153d34b518266e5f3ddafff70e658717040e495513ea6ac098ce01d. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/JP92L2408410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7aa45ef9cfb7383f4b8733b2b7d7ff9406778265968631382f57c3cee650b6. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JP92L2408420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37562228bdc62696e9d7c3afa7f657b29233d9af4c91bee5c0a2428c52b01622. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/JP92L2408440.