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 0xe805bf3bf75d128fadaa747b06375c3aff4b634c2ac620b01a9517bb4841c522. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/606ab7d6-e8cd-40fe-90c8-d43b20e647fe.json and https://artists.proofprofile.net/proofs/artist/606ab7d6-e8cd-40fe-90c8-d43b20e647fe.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 0x60d102b23d1e529f464e0e34fef9b29c80c61963e4bc6026ee1ffb1d614f4cd4. 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/TWE771988081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572f1de22f63245ce89f4655af1444c27c9af00874fec77b681a12b71b13fcb4. 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/TWE771988082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6ab3ef3191191a80d8bb1e0f25d8dc7921e13e06e105e5d590124831c115e9. 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/TWE771988083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f33555368acf5f6b6fc05e3eb9b00161a8ac7603933fab1222f3f8a2dab4b25. 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/TWE771988084.
熱帶天使 Tropical Angels: A Taiwanese Musical
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebdb93e08f501cb92b0e56a2ea1af35cf534cb1b718b279261146c83a554ccf7. 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/TWCC32320574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cad221967af3697448c73eb8c52a6c7368f7fc9a52d80cef5c8205a88fd6bc1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:23:52Z), 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/TWCC32320919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83d3dbec4464261cf2b3e706a59f6c894f9a513b4a53a476aa7e555f98703b5. 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/TWCC32320920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe617a3c391b7390b6ed5f89f96fb030e579d95282d60ae4e343065fbcfbc5fee. 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/TWCC32320921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9034ac769d5cd0631ed4dec95e6c121ab1af66c6d4a36277eb5c7ac3a8cdb3d8. 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/TWCC32320922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a60a7c53f11b0824c082a0fd25065562282b143909e79c80c5eb0f651481de. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/TWCC32320953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc7f84ea96336e229c3e4f2addf4915dc919792294e74e97af7d5022c07c223. 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/TWCC32320954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95be61cc9ab5b717abef90136226c4202f92523f2a580c93bdd80fd5ef313ff. 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/TWCC32320955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4237ca49488db518b6ce79dce57181505a770ded01178b4a1ade18a9f199258e. 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/TWCC32320956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b473924ca5fecbceaca0cf7b99821ffdfa9554b535db20e9cb8eeffc936820. 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/TWCC32320958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c085cbff24f21a0c74ce1ff6937b1934fbf1a3bd93362516a4f274be2211eae. 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/TWCC32320965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5d971ce2cba8d0816d4b53c9f2986472ee31ca0ab6b7b3df67cbe133c43e94. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TWCC32320966.
琵琶湖周航の歌 （電影⟪盛情款待⟫主題曲） (日文版)