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 0x01a049be7a1e61fe94e4eaabd0184264510d58b8ab87a5aa7e288a06e3f027f9. 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/f97ed961-31b0-44fe-89da-b5375fb67399.json and https://artists.proofprofile.net/proofs/artist/f97ed961-31b0-44fe-89da-b5375fb67399.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 0x716751f1019113c7f385cf3e857de339f6d1107cf204e9d05c59eeae4a04ff4a. 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/TWA472330011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f68e95abc274273bbe96a38ca4b88a734c041f0cd2b59ac0caa37e16042cca. 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/TWA472330007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece8590b50bc05f8d1799070cd0c13440c30c8ba0c88b17c67baf7293884a241. 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/TWA472330004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe867a41365e53c95cac8c67d14cc05e9d18f88c9c3fa73e8700285924ee6ef23. 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/TWA472330006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d3c161dc261128e1771263e3c776e1738f2976cd88e3c2a7331cb80dd9869e. 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/TWA472330009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa410395742f007bee8e80784b31f988d1a048d86a2d81a6624381cbd64c97470. 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/TWA472330002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5449549e256d55fafb028aa769fc59e64e58072ca84aa93bb6b5b2b65d85c5. 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/TWA472330003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce78dbafd08672b59881d65bd594f1fd7e99edb5d7b8efda5cafcb6a2bd4d966. 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/TWA472330005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad774df87b423a332d2351fc5d36cb9dbd56e902a8a9b55e796b4bbee1fd816. 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/TWA472330008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceeb003fc79cc49b3724e4ea42df58a2b950c1e38158590acfa72ddc25b541c1. 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/TWA472330010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9d6d8961f1cd19e153aa53f14e8c0962fd9022949e0097e2a73206d477caeb. 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/TWA472330001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8266bb7b3ac327bb1ca4816cb2840c6e7153d17b553ead7e5448daa49da785. 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/TWA472211002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199d0d0bb7741c527783c8ccae2f55d3509b280ff4ee2e9dade0846bdbb00009. 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/TWA472311004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5275c9c18471d40d2c1a7d0c82a0d91e5aed111fd417f8cea778820e1ae68e55. 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/TWA472211004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbd8bb4a520373f74234f46806137f47d4c0cef97eee02117f3f3282456cea5. 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/TWA472311001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba32f45834cc4d4490b2a8be6fd270770ca47233102cf52861fcb2f72b480bd. 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/TWA472311008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c4ef2b83180005e08b3e198363d01d6d0284622986bb3b8371d68571a8d6ad. 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/TWA472311009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ef9d590384389f621dd2f90eb485828de234f9f5bd0b5be4d0ff241fc4d750. 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/TWA472311010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd11891acf5087f3e38875f3c2006c4fd87a208ce52bf271a7227b53d23f224a. 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/TWA472311012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ca9edec50f5993548bbe5e0144f37760fae3e133771f271398812e28b59712. 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/TWA472311015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062183d58fd91eed71c14ac00546b87ef102d33031d5eeb1e147f2bd858b4a98. 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/TWA472211001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8cdb1d60801fbada19c944b49887b19e1a24778e7f24608525cccf111dbaaa1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TWA472311018.
心REMIX ft.SiNNER MOON & PIZZALI (feat. SiNNER MOON & PIZZALI)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d913c48cb1d9ea7ac6a9fed242529f4d77105151a51bc2efdb5caca6f17da4. 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/TWA472211003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d913c48cb1d9ea7ac6a9fed242529f4d77105151a51bc2efdb5caca6f17da4. 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/TWA472211003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8266bb7b3ac327bb1ca4816cb2840c6e7153d17b553ead7e5448daa49da785. 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/TWA472211002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5275c9c18471d40d2c1a7d0c82a0d91e5aed111fd417f8cea778820e1ae68e55. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TWA472211004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062183d58fd91eed71c14ac00546b87ef102d33031d5eeb1e147f2bd858b4a98. 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/TWA472211001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd851e27173d91b5492ee182eba80af75b048e6a6d94a11109181d1dd4cb56d7e. 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/TWA472318001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceeb003fc79cc49b3724e4ea42df58a2b950c1e38158590acfa72ddc25b541c1. 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/TWA472330010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbd8bb4a520373f74234f46806137f47d4c0cef97eee02117f3f3282456cea5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWA472311001.
幾比幾 (feat. 熊仔) [bilibili & Disney《正義的算法》片頭曲]
幾比幾 (feat. 熊仔) - bilibili & Disney《正義的算法》片頭曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6baf09e959040bde44b85009f174c5d76e5c0d463c4dabe3be5ece2117c04a32. 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/TWA472221001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18913517134827751e99175676c95080283e9485356edb38ef233f4f7e606d3a. 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/TWI452200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222e4c047e3ff640aecf71a2f4a84f1f7eb298beda3ebcc0f5fab9622f67bf7f. 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/TWI452200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716faa8c1c3bcc4c3404d44b2e94ef45ea0ea1edbcc255bf9636085df6ba42ad. 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/TWI452200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8fb542ea7c493171b1d345e1a07ea93ac62f6189f787e8bfb5e0005c4d4d52. 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/TWI452200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8392cb564bbe311aa54a6c70c63a860c7909c21f889d87b405a8802bd5c43c. 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/TWI452200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8304db38b7e8c863af124b979dd0c3a4a4cfb780cdb499a3d6b552b049fb43e. 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/TWI452000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04df5df9fd1895fa7bec96fc0ee570a6de4c3e1dc7ccfd94ab82fda322dff4b. 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/TWI451900013.
寶島少年 feat. 潤少, Gambler & 李英宏 aka DJ Didilong
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165d6fca74204b301d94e2c01260cc5d1603b9f3e7e28ecfc1aeb7ef071920a4. 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/TWI452200030.