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 0x12bebe247352bbf0af9df39bc2ebf0dd44d55a62c9cf7c4bbfd6e7c5c0840ce2. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d1f0881-f4c4-4d4e-aeee-98a59ac5065c.json and https://artists.proofprofile.net/proofs/artist/9d1f0881-f4c4-4d4e-aeee-98a59ac5065c.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 0xdae0b6cdbc77a6931bace56d8f0ae7ca0875fa0ac24eb84740f822dd80d16074. 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/MYSW10890189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873edf19ba2adb283b1f7a19c83bfd6045366e53d5aba045e286b599abf3171b. 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/MYSW10890187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0d1a21c521c26565f5e307c82976ef3a954822ecc686b558f099ec176a997d. 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/MYSW10890383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c29a3fc310f020cad330956ed6909b0be3143a151bb0b8f6290dcb54bd2b229. 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/MYSW10890104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c07398eb4deac1c01ef51bd6f5da5fc2f3a858f9586ad943171313a6b1feff. 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/MYSW10890105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf627dad7e9f9e4c6b57209b55ce5aa1aa0215e951576a1c969ccdd958c35cbc6. 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/MYSW10890109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6794811693f5d2773d8403cf2f7932855d416f96cee6ea6696bf0418526f50. 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/MYSW10890144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebf2fc61084b8db628d89442573eb07c63db7a6f342b52d87ad0409a56e1f5e. 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/MYSW10890106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8db92b46116df277dbaf08ba1ac58b3bc4132741be8967a1d97673bbc9ca15. 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/MYSW10890185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86a98e8471e6e6ec6bc0137dabb13295f0fb9883af8c27840b72437fd118a0d. 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/MYSW10890180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee875dbe5a9b33ec6e278e1088454572e5177f2db6cd74c196607ce371a972a. 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/MYSW10890182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873edf19ba2adb283b1f7a19c83bfd6045366e53d5aba045e286b599abf3171b. 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/MYSW10890187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae0b6cdbc77a6931bace56d8f0ae7ca0875fa0ac24eb84740f822dd80d16074. 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/MYSW10890189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd18e25164f289d6b178a7d9069d8dfa071e967c83abe4589d56702b18b340fe. 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/MYSW10890190.
新年好, 恭喜发财, 嘻嘻哈哈过新年, 大拜年, 向歌友们拜年, 迎接幸福年
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e6ced2ef733008a98d463ad839292d7709aa43561ecc36c2a8a033aecdbc55. 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/MYSW10891916.
新年歌兒大家唱 +新春好預兆+恭喜發財發大財
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba786a9991f9e9add4eb24a41b7bca9ef4a8839686e14e0ace0b601a8685491f. 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/MYSW10890137.
新年到+恭喜发财+嘻嘻哈哈过新年+ 大拜年+向歌友们拜年+迎接幸福年
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e6ced2ef733008a98d463ad839292d7709aa43561ecc36c2a8a033aecdbc55. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/MYSW10891916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86a98e8471e6e6ec6bc0137dabb13295f0fb9883af8c27840b72437fd118a0d. 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/MYSW10890180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974774a8fd95a7fcf5a89b331c7f7403b364a57908556f4f7b5e5d1883e20787. 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/MYSW10890177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae0b6cdbc77a6931bace56d8f0ae7ca0875fa0ac24eb84740f822dd80d16074. 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/MYSW10890189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3aa5ab61e3f114e763fb2e00321f9345cdce09ce45a494fab211663fa875f3. 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/MYSW10892771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170b73c54f25ffd83c701beaa4de7095e2401ba852f023f6dd85b276350debac. 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/MYSW10892929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7dca481bf4dda3025a307cc851ee0569b6f81158eeff737c4fd75ea4a08fe95. 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/MYSW10892933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf5d5c24a9ae107c92cde4f39401f12e86c4c9e2b015e53b05e6aa83ebbc03c. 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/MYSW10892934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4effc1ccc81aa29612b179eb3b1f33cffd1af1d5dfe5b3a772395710d11dca1e. 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/MYSW10892935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913893dd79d0cdc2688634460cd48f3075f0a2544e54559583ecbb54b2151506. 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/MYSW10892186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31e8a8ef3aa57774f75467dd4f9decc23a0ab85f6f56d48150409cc2c3a8de5. 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/MYSW10892188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11234faa53c7af6e097749478bb1fabbf6d08271752b8f9086fbb3680b2992e9. 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/MYSW10892189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e86a7687d78451caf43ea20667c4b1932669e82d7dca820abe5cd32f351af16. 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/MYSW10892193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea49f758216f2a187d4fe6411c73f9ec9fc57917c30703c6293e38987c530978. 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/MYSW10891527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577693740ca1b2c6011f595f390298d3fd2848f0ba9864065f27c6548ea505dd. 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/MYSW10892358.