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 0x3a43804dd8b9def53f3d9c10daa2117adac68c14bc4cd69c7966f4468243ac35. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/beb1f5ba-5ccb-4ce8-89ce-59a95231efe3.json and https://artists.proofprofile.net/proofs/artist/beb1f5ba-5ccb-4ce8-89ce-59a95231efe3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
当我奔向你 - 《当我飞奔向你》影视剧主题曲
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 0xd92254cbb9446c6c9b3b9ab4b58d8db1cc7d793911d86e78a434e5fb4c32b70c. 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/DGA062307101.
我想我会 - 《当我飞奔向你》影视剧片尾曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed9120e052f44b0d35050613e56cfaae4d90e4ef5a812155d406396926e1ae3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DGA062307102.
轻轻的夏天 - 《当我飞奔向你》影视剧插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036557b60554c3883b06e55033376042dd8fd6ebc3bfe0029cc9d0bb07085155. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DGA062307103.
你是不是也想和我一起走走 - 《当我飞奔向你》影视剧插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a850eee690e27eccddad9677295a13cef0014b00501e3022e16ddc9cf4f460. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DGA062307104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a818249700a899c0b440e58efbb7857b56244dfdc2a03a1e4734ee6315ae32e. 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/HKG732102001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776a75f42887712a1a689802869d6087ee3a99f7409b9ba12fa1978b9e7baa01. 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/HKG732421433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862578844adb81ae4114cc6f023d068f34e4410c98ef39691c856575d60b613f. 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/FR96X2015199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2935ef4601ef81f072dca87277d3c0e0a704806541834c0a2a76becae5845f0b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR96X2015200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456f11a047b70163ed5ed1af6848c0cacdaffa69cc0c54931caeeab062ca9a9b. 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/FRX452024493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84f4bcc71f835bb2c2f1510bceef633a664c01ab81454092ad87e587c90f2f5. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRX452024494.
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 0xd3565fa69cb4488ac1badd6637be9b4b367db6700da4fd20c0642ffe2c9f3216. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/FRX201966975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3c4f8f12c10e8e537644e9ab0917a95dd2a89d7f9671c7e79a114a963cb518. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FRX201962823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10894bd69242469c2bd1c67148b0f49037c72bc3356050bde552ee5f377dc769. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FRX201962600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc2fb3d6b90635a3d7bad1dd13779e6d558ac4462be8a9a6e626f0cc76c7c71. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HKG732421301.