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 0xb15a39590bb28769734c503ad77742bfca6f57950c243126411e0bc17180caff. 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/a89ff71b-102c-4c15-a439-9f0ce178bf21.json and https://artists.proofprofile.net/proofs/artist/a89ff71b-102c-4c15-a439-9f0ce178bf21.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 0x820b2154067c258b3299bd65422b4a072ef01edb342ee61eaeb21e8b3eaa5bd0. 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/TWDL72400624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad95149ab19048859fdd9e5f56fd198f8b07295f29a52aafe8065489d349591. 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/TWDL72400421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de964b413c631d99ce1ec22245acde12b1f2f17b790229b74f76a5f40b574e0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TWDL72400182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3f941b7e58889d9d2254635bb566137e46d9b0747ca4113e7afc15870fa30b. 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/TWDL72400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6106c98e30a1bb5812b2720732f1b2d2965360ff3d916ed3df3716b942e41a02. 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/TWDL72308114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4db52087e1dbd502bb6f14a83b54db4140192b5d754795e3941a1f01ff824e. 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/TWDL72306052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc78bb327b6b511152625a5dd6bcec0b9fd6133f352c0781dfe90044087bc4c. 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/TWDL72301476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5124c9e1bda9fb387a321c282507c32c89ba7f2072ec11de3e5d51068c8c714. 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/TWDL72300442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4244a662231a2ec6a0143d42aa13a0fa292e1a70ac7b242ea73f9e5bfd0d6bea. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TWDL72300443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968d019ebad61f7b3032656718923076f61d37a7b4a3eeb862a9fdf0ef8c06bc. 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/TWDL72300444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0061317e30b2578af04a01bfa6a89829bb1ecff30ff64bd72af37c847b3e96. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TWDL72205739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504f47712636c2554d56220617416f07b4360c70a33d169c1b739b078a68a1e1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TWDL72110313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d8f12ff0f52b675da549a3984351f5e78103fd05b0ff59c453cb2ee5d4c731. 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/HKE022227215.
已經愛上你了（短劇《惹上首席Boss》主題曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29b6b42feca9c39ab575a2dc3142272919c0167586141b73299173789c84301. 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/TWDL72103377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e20eb380599cc3c428c5baea65b71d68c61679185beed880f3dff05b0b53b5. 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/TWDL72102448.