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 0x5c2625af226eb4225f1507f7cbc0ea786d13b53bef3c7553ab36aa602351c233. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7800d7c2-7d2a-41d2-b105-f6b888902a6c.json and https://artists.proofprofile.net/proofs/artist/7800d7c2-7d2a-41d2-b105-f6b888902a6c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Brief Moment (Orchestral Arrangement) [from "Pokémon Scarlet & Violet"]
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 0xc69aac39d47df038e25e088be148f34ed9b4c2a634e402e40c5eb895669d9f95. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPE101901040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0f977866fa8d1400a4d62188431d3b75d1b8619b134e34412da161a36bb744. 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/JPE101901380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e95a2c418353f87bf5a184a42a40e87d995b2a1b54eacebca3f106d7165d1b5. 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/JPE101901020.
Enter the Devil Shocker (Mission01 Start)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3a09dce92a29f91e3f6659b6bacf7fc128139990cdf0ce02c51f62eca7e25e. 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/JPE101901030.
Enjoy the Taste of Despair! (V Mission Start)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25536dd75503862874b98a4d551fbb1f0a5433d3ac5c54ad258382dfe2111516. 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/JPE101901230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4ee2db0d65e4319207241ebd077b35dd2053a15e025b1b176132c9c6e90f4d. 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/JPE101901080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad2f53c309a726a1aae2448e0b5037b8a969791a8d1e989fe7d0daacb51178d. 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/JPE101901180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7354ffb0c299c427e6e6d32409a10787946d05e1a4a600060d7396b4bbc0c25f. 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/JPE101901170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ac23b0355581057878f9a1d08fe05b79ff28d478ef50bc78cd75f8b496becf. 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/JPE101901370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e90df3fff2ff726b97793d0caa76e297e1836b66b57ce3fa036ddb6faee6884. 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/JPE101901200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e362c4a17c2389cbfde72e451f43f1050b47d036b8cafa8f9261f0c2e815b3. 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/JPE101901240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b9c3a2c8e9433869d6a1ada9955ae7a7139543b201548c6dfbe08659cb4852. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPE101901260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44981f9c484d5d578617361ef5c7558778c77b82c34adf825227a9c1db3166e. 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/JPE101901330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708488f3be744588a76ed2b0a7cd611bbe80faee71497ac31cf6671d226faedb. 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/JPE101901190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37deb0fe457e5a9e82859626770a018b5f96f64551e131ced2502583db0b543c. 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/JPE101901300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182a8c23067a7ce4f8a5bd7c9aaeaa3820ed0e7c25578adc5e73f90e16b7e00a. 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/JPE101901360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bbae2a0bf4d805984169b0328b98823c13b3bae6745d07afa06b2a51548446. 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/JPE101901390.
Devil May Cry 5 Special Edition Vergil's Rebirth Sound Selection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f80e47063088a5cd240ed91e15b9e67c562bef6cda75a24e01d94e42a395e77. 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/JPE102003810.
モンスターハンター ストーリーズ オリジナル・サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1620b83db4af8779e1f6ed870ca8e4e59e85c4c0920d8e7ba603d82eade0023. 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/JPE101606410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5eb2110f3777344a895c3d256dad7c5c9c587924e60217ec36ccc3716bc211. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/JPE101606460.
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