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 0x67f65efd26a07319b16bf612a17606fa0ad3241675a75edeb65b8d4d63ef2d58. 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/0b7e60b1-ee70-4755-bd47-10280f771ba9.json and https://artists.proofprofile.net/proofs/artist/0b7e60b1-ee70-4755-bd47-10280f771ba9.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 0x25412792a9a8e9cdc17bb257d1d0bcdcf5f7378acb79be9629d497dd8bc30a85. 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/TWEL52121006.
偶爾的念頭 (《About Youth 默默的我，不默默的我們》影集插曲 )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fb22a860fa074b01d422a1a5155ce116abc12b1afcaf8aab1ae4be29d811e9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TWD952294101.
Sometimes I Want to Love You ("About Youth" Soundtrack)
Sometimes I Want To Love You - "About Youth" Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fb22a860fa074b01d422a1a5155ce116abc12b1afcaf8aab1ae4be29d811e9. 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/TWD952294101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfec2c91c36cc09f25957c90eea55ef6d8f998d5ff509ec92d290733d460557. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/TWEL52121003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25412792a9a8e9cdc17bb257d1d0bcdcf5f7378acb79be9629d497dd8bc30a85. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TWEL52121006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab357c14b2fc68c580cf41fc6d006d0540e108e61772eb148898f993084fa8d. 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/TWEL52222022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862e7fdfc70cc7619351a90c37c80629b7d54ede1bf5d70dfab28905de228f58. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TWEL52222023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7fd84880f92974841f64c0513f1c8ff2458804026582a4ebe0d15dfa781bc73. 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/TWEL52222024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864b2a5872b28eba3c9dc191e1800a72da7ba2780e5b67437d764510df993e43. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TWEL52222025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39dc1354acf24958ee5390c93e1857f20b8a32c9f1444e4805ef988dd8c29a4a. 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/TWEL52222009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd576be61fe19e551d98af77a3c00886466ba635636ee3f8af06ca8025dd120ea. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TWEL52222026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c2c5eaaa3fa693bf1b55b39fffacea0a14eedaf0aad8267a43785f5da24e00. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/TWEL52222027.