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 0xd440d8b469679a2c92cabe2844c5018f84f0680f1db026a0d118f04dec2a989e. 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/061c8fe2-3b67-47ff-b779-abc8c3db3ed5.json and https://artists.proofprofile.net/proofs/artist/061c8fe2-3b67-47ff-b779-abc8c3db3ed5.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 0x9024723aeaadbfdfef7e52521eaf8410d711caf57537f422af6e0e15bd343d4e. 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/HKG731763965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b10544888b00b4344d6f9f33a21708c78feb4ceeccb232db519c5181dc59cc7. 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/HKG731763985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa362fb4e5852bdeacfca4316103fcd80febc7b253453c37bebb8f57c68899778. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/HKG731763964.
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 0xdc3223f4ec5e12a34ecfd1ce39aa4077859224bca61e008eab1addac2f516e36. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/HKG731763963.
样子 (电视剧《要久久爱》主题曲-合唱版)
样子 - 电视剧《要久久爱》主题曲-合唱版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf61013aa2abd06e77dd7713b416312ef947b0c5c421612355f63da19dbee17. 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/SGA672300002.
是对爱的渴望 - 电视剧《女心理师》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49655c7c146469eae0af54559f7c992e359a2cef6505a37d232db181abe1087. 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/FRS182149741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d730d191f4cdfb5151e369655d5bf9f9c0b1576a1c27a549cb3c45164680c4e. 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/FRS182149743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1feb15b4b06e8bc903d9c865815049a9d861e6d61bf8dd1b4ab25add5ad5b41b. 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/FRS182149744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8364d2e77f7e5b7ecfb6f01fb23185c16c1fcf4a9dc01588e72d22d681510322. 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/FRS182149745.
花房咖啡厅 - 电视剧《女心理师》片尾曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8369ad1cddf766c81e3ae236e6d79f947f480fe25e914cd5b9e103f147eb14a5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRS182149739.
有风的夜晚 - 电视剧《我的莫格利男孩》片尾曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1905df6d7d097b6c0573bb5f662517cf99137a6d68381a32b88ef1685fcc3ee4. 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/FR96X1925383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbd303b5c4d5c1c48b1febdd676c57b2da199495110a32a4a0b38cd51e502b3. 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/FR96X1931120.
我的祖国 (《我和我的家乡》青春推广曲)
余生，请多指教 (《余生，请多指教》电视剧主题曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f6edff5a2fba7cd2e3338b44164e3d6afab260c805088c1094ff5b2f7385fe. 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/HKI322112180.
一个人喜欢一个人 (《余生，请多指教》电视剧片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431e1667dac9ae19ebb9e9fb3ddf21885ce109732fb50d98a485b82e4e6c66fa. 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/HKI322216301.
最幸运的幸运 (《余生，请多指教》电视剧片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832c8e1fbc829372f7e1cd9ea0fd9299e2bcd2535c110c50f38da1fc415d7e10. 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/HKI322216302.
不完美的秘密 (《余生，请多指教》电视剧插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5229486a494ab45361077680350c12d169e53be7fd6cbf22ac2f886692f8908. 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/HKI322216303.
意外的意外 (《余生，请多指教》电视剧配乐)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c88f298fb121ed8a17c13be754fa5485b2918495f3c32f78443769808b7afd3. 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/HKI322216306.
大哥你好 (《余生，请多指教》电视剧配乐)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac624d9e714f48df1e2fe4856309d1d49ef7b3a5b4fd0e73cdcb5bbf3eec5ab. 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/HKI322216307.
校校的笑 (《余生，请多指教》电视剧配乐)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c12c02c312f56e029bf384cb89de329c2eac9c102fbb28eba61a9c1fa787512. 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/HKI322216309.
老林，爸爸 (《余生，请多指教》电视剧配乐)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e885f59c401209128b56affb47989b431a51989c1b2870914859ebe0869770. 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/HKI322216310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a9fa7092bed3f9aab85f4fb8de7e6fd827cc6597c3b9194cf86f31d126bf24. 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/HKI322216315.
美的冒泡 (《余生，请多指教》电视剧配乐)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3dedd2ca3015aeeb186c5bc9e424950f89ad273b6788fc4d84dc28ee0fd97e1. 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/HKI322216316.
每一次凝视 (《余生，请多指教》电视剧配乐)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a0aa64a5bb44ba1b48d088f3d3642a1bd82d552e4700006431855ca4864a57. 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/HKI322216317.
一个人喜欢一个人的诗意 (《余生，请多指教》电视剧配乐)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9004c4b357883646e47be47ed8ade067a906ab5733474447ab45f61e8b2be6. 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/HKI322216320.
我想让他们羡慕你 (《余生，请多指教》电视剧配乐)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea37915f20dd9825bbdfcafbfb958046d296ea7f3d4d22aff91ba95fd151740c. 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/HKI322216322.