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 0xbef8393229391cee9e1c81d2e42b4a9e1460ae5ce36cf176c2074adf28a3f7ce. 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/97d51408-37b3-4385-a504-b7a4e453c92d.json and https://artists.proofprofile.net/proofs/artist/97d51408-37b3-4385-a504-b7a4e453c92d.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 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 0xab016d33dc6dbfb6e874b8404b8e8e621697687b71d0af996a91c5682462f334. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/GXBDT2406820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe465b0746542d8c359f7e3870283686d42a4a4e47bc8e567aa702af37ca57d43. 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/GXBDT2478120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5c49518cbb75a78c37b64a90982b5911ea470c8fea4d7cd673cbe3e9c7829c. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/GXBDT2472033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afa19bb3f2630978d355aea79bd5154255672188a34139cbe1dffc6f526f76d. 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/GXBDT2478260.
The Path of the Wind (From "My Neighbor Totoro")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b80c2e61b1cf88d3ca2852bf8caf8eb5d6374223e9a833fd5298a2c19f9e9e8. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/GXBDT2406393.
My Neighbor Totoro - Ending Theme Song (From "My Neighbor Totoro")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779493132d361103ccfa3604e7b25318e6eab499d65515b5b0e5963bbce4b593. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/GXBDT2431252.
Evening Wind (From "My Neighbor Totoro")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ced90dbd1b39fe72c4498791ecbe1c892de8429e2720f93bad7704e6504da3. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/GXBDT2431069.
The Wind Forest (From "My Neighbor Totoro")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a85b96542342075d077b8f48b64223cf0e4c29448142b3150bcdec6356c7e17. 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/GXBDT2491131.
Opening Song - Merry-Go-Round of Life (From "Howl's Moving Castle")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063782d3f1363cc4ede915ae7a7e27c703dc6f7323232d554907155434eedecd. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/GXBDT2465672.
The Legend of Ashitaka (From "Princess Mononoke")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397f4e41fa8d86bde378a39ec1f442c00ce2161a6cf270f9f7f176a74080fadf. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/GXBDT2434092.
Princess Mononoke Theme (From "Princess Mononoke")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e853f303eab2c3c42d05782992768cee46cf71003e82e6744b927893bde8ee. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/GXBDT2418496.
Ashitaka and San (From "Princess Mononoke")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ca45cabb2e6d872950d4fc0f2d614ab676ed62bb7d3e70ac504623a6bfaff1. 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/GXBDT2419958.
Carrying You (From "Laputa: Castle In The Sky")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4178897f96bccd14dddf87a43d5e44284236ca2d5c6f9e0f88a0751c8b2643b. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/GXBDT2478338.
The Girl Who Fell From the Sky (From "Laputa: Castle In The Sky")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8507d90bbaa294d76b58695c65f6f6075219a5c66ac5ad892e5286904a4ab203. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/GXBDT2471131.
The Lost Paradise (From "Laputa: Castle In The Sky")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672727f9cb5a87b5427ae979cd8862a4ec5779b250d4b2b23af3ef4ef8b2cb07. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/GXBDT2433385.
Pokémon Music: The Ultimate Collection II
Skyrim Music: The Ultimate Collection II