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 0xd664d0b9513d2614a332ae969af915a0bf4fdab882511326db647c8b79191d16. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a6071aa-4ef0-4e77-b82e-7fc7a2356c21.json and https://artists.proofprofile.net/proofs/artist/2a6071aa-4ef0-4e77-b82e-7fc7a2356c21.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 0xa2ad5da3477192003ee8e0130d0453dbc7704e8b350c304e356f70e650de33d6. 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/TWA452110901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd378b086961b4d32c52091577b21671689fc40d143b313504be2f06c2fa2d868. 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/TWA452110902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb882b7dfce56c78d504f8f78b30292d671774b3c75f925b7e5d76f4d52898069. 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/TWA452110903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48c1ba4f71ca2f1289b838c96014727548cc1a33672e15e1841e8bee316110e. 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/TWA452110904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40079b6bf95b7ee9e9d94056353d7941db84461c0c11d8e88a3fa7cf17258733. 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/TWA452110905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d1be9089c0c926e7e2ea70580ec5d1b9a4f07e0e33593ece9845c4286e05ab. 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/TWA452110906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072434a62972c3e433b253596d181237216db1a6d31d8b3281fb4815ffa71213. 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/TWA772201184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576efaf7ea8a8d08dbe4d8c5f40c71397583100961e1433c3e6838f498ecad5f. 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/TWA771801031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fd31a20c59c61c47834eb2f52d3009fe7b64010cd2684d1defe6bfe2bd8f9a. 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/TWA771801026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2a2856565a6ba4877419abfee4d89044065f22fa41852154bd45f85c84ec85. 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/TWA771801028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b79bf56cd4c697defefc4c0ec741ef4ee2d66507c100ea8ff4177f748572366. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TWA771801030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6892eeff72921ec4f1fe9c005985bd4601d86597bc69f76a5070e88d1639ac. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TWA771801033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef07f2ac6d97df4947e90d0f604ba5a032ee443b84c7a9e188e9e671965edf61. 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/TWA771801027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1990c75994bd1f69d0b505182bd32f29d44f1e9c8be703d42ad795727814fa. 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/TWA771701005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51da41455f40c0cafc2d026f079c0c3b1e5793b179b219335eea0d899e5a777. 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/TWA771701006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd613e2fe33df5bacf87b98474911d55b1131c2a4c09afc75b53e1a989e48015a. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TWA771701008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c731913cad29c1a19664f2b024d5244d3389af398355fbba79a7907e5684292. 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/TWA771701001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a67de6ba014b32fd6ec5d34c0ae9a4879523c7b48ca8d9403c3eb346c37463d. 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/TWA771701010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ad270574a76421e759f2adf34a169e51a9025b9060097b16b9971807051d90. 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/TWA771701012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a35d2baa0c6a1f4144443fece28f0e59055551c28f08045c43b68a08bee2c27. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TWA771701013.
你是不是誤會什麼 (Miss understanding)（feat.YELLOW黃宣）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94a561ad35f5fa9557089bccbd10162f7702e2ba24101a730667e97c910d10e. 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/TWA772001140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576efaf7ea8a8d08dbe4d8c5f40c71397583100961e1433c3e6838f498ecad5f. 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/TWA771801031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6892eeff72921ec4f1fe9c005985bd4601d86597bc69f76a5070e88d1639ac. 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/TWA771801033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02505928e39cc7c0aad96648a28d7d9301b0da0479a69c9a97eb71522957ed7f. 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/TWA771701014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbbc5cad181f63c955e3d94ffd88e08193a9a0b98aa0ef0408c5b90af242073. 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/TWA771701018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9405602391f38ea38ba5a0ec2b144d486a6c3bd1848dc8a883f7410ba972e75. 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/TWA771701002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c731913cad29c1a19664f2b024d5244d3389af398355fbba79a7907e5684292. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/TWA771701001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11b8e2cb5942bc218764cdedeca8c6dcb92567bf55cba0e8492f2f0e45f60b4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TWS172000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2edf1fbb4f599afe603151a80aab09653fd5fac3667fbe8503505bc57fd266. 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/TWS172100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4aed5e23bdcbfd22b8818b8ed983cf25ee5dd63766dad80c5d2cd2332b8d03. 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/TWS172100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a2c7c01930ec18823a9d00a98d97b09f7b7d18915251741e01730cd384b290. 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/TWCO32000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e8bec2c4e7f7ca9ff7d3a57ab1020eac3e698cff24af4bc2aad890ac70b4e7. 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/TWCO32000011.