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 0xb5b408ec3c08355a1f71380973ba6472ecfec90f057a12190b611ea3bca0e67d. 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/739e056d-5615-495b-8cb9-b3e500cd6a5b.json and https://artists.proofprofile.net/proofs/artist/739e056d-5615-495b-8cb9-b3e500cd6a5b.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 0x4acb0d9dcb02a757cb11c6613fd720449b870c3f09aadb83bae63f7852ed10b4. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/JPB602103455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e7e23528d26e80841b2aead09eed0a11e229a63cfe232fea018ee908b67902. 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/JPB602200679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a5b560418e36e6286018a8c7ee0cc10a1a0abd7e3ef99c40fcc5c43ba6f935. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/JPB602200680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26856fb4e7a7fb5c89dd1f940fd158c6a1b07519ffadd6c7e1eb3d8df6c15423. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T16:28:12Z), 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/TWA472388010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab50a2cc35893cd997e81153b6c48b148ca95dcd92656b4c175252a904aeaf3. 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/HKE022234714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c52157b5640834b2df2b3bba7bbd5715ec95855d72932af964776ef81230b0. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/HKE022234715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ba3a87ec567a4a4ad5430991244828d442c0333b3cf6dc884606b17d69b09c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/HKE022234716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be48a877af6374de7eee4af725fbc8588b66ba599ba5d24e0a578c4162c3421. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/HKE022234780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086219934642f3bd31cfc5206e4df96716ca558ae726a50b70a7d983c4e7b20c. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/HKE022235266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e37888d148eff36b5e1cdc9f5010d7ff258fe5b5e2634d6102fd5e858459df. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/HKE022327483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0701109743f134a8b15ecee4664670adbf199d65c1699931d7fb519d0ce884a5. 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/HKG732105733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf9592bdbf6b785d42cc54738c831f82252d118eada361443b122cd75e4154e. 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/HKG732102877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a5b2cea88ef301000e701a3ad3b65d287d64296b1b7188253b9f784b3ad240. 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/KSA012280176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f54a9eca973267963a21e89b721459233df4af0f570eb0ff99ef76b815d2e0. 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/HKG732132068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4c94275c02d8f3081eda7b229cceb9f401cfbf26d78164eddef0b8d2e28d04. 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/HKG732102868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca29cb8c75ddf9f94c8252ef524e399a81c88c2d78f0d71a277d5c0afa04748. 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/HKG732103129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886e5bca3bb020e42358d5dee8269e1d8a33c94606f1ed6fa05114684a104ebd. 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/HKG732132097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1f0506bf8da6189f37bb174ec731710c5e2be7682ed48ba4c7a140cdccef84. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/HKG732105032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9705c24da8d9476f4b602f9ad2b21fad1b83203a282b3d0a384dc1ea1dbafc5. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/HKG732104043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c48dec4737bae99cf1fc3e39f5ada5bda90282945321cf23c49b83c765e92d9. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/HKG732105025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e35e5636c690f022852ab20a1df520910fd033db0f05a20bd4744b9b57a15b. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/HKG732132071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe486150e8ce9b3e3d0c1496b2b616655ad23b556a4910ddfa6898e3c7be19e8. 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/TWA472288036.
浪漫蒂克（電視劇《她們的名字》插曲）[伴奏]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39eb2def47b9181d0100bc6c5a0c3f04bcade33d57e6d3bdb8aaa325ae64d812. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/TWA472288044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb2fa4a4c0c6034639e870ab78e0d5fb6d821e674ba8bab45100b061cac6416. 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/HKG732105715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2325149e4f41c05cb6a8b7859562600ef3eb5e88a740fb5ab1752cae2087fdfa. 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/KSA012278356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c964bd8d261580a2aac1e93e62573fb9e4bf734bfedd9cfb4f6c9f8325ab8a. 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/KSA012278330.