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 0xe867dfa653288faeb8474e0162a8965d276445f9c2894beec58f1fb3ada83e94. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/028d116e-9d65-4560-91b9-19878991eb3a.json and https://artists.proofprofile.net/proofs/artist/028d116e-9d65-4560-91b9-19878991eb3a.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 0x3f5f9efe95e6e36dfefbdab9529de1d84bb1180f43738082dc6607bd345ea876. 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/TWDL72016773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256e8fbbf05cce1cee77a1d8bbb40b15d16f1d29067ae091431c3e49c9fdfad8. 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/DGA072139541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0cb62bff4ed18908ca4dd01fbcb279ecdd567ceaf993641563c7d80a626aa1. 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/DGA072139542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b4b6fbb005e6d9c3f46aa1536c8d4424392e50eee7a1a94117527b65b3b9cf. 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/DGA072139544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022cd45f4fc101df93dc3f22198bc2e07b4d0e76e2dbb29d7fc5518ecd30720b. 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/DGA072139545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6273fac0e1a9243fab8a8233e378dc509e0cdbd59c2060c770402bfc0597430. 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/DGA072139547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa982ab9fc2e3086eaa6b92909999a51db4449a8f4af86df3e33d625f8328c091. 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/DGA072139548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204b7343366ae74dbe9b5a6dab894fdc78c9aba098c23115e70fff87a9d8eb9a. 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/DGA072139549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72418cc67205b4fbaf39ea2eb7f0750e4bdcd011ce86c90256e6cb33deffa2b4. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/DGA072139540.
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 0x0bccb45ba250af266ed2add979c48aec33157c939ea0065aba3dc57c21121bde. 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/FRX202232505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298f1d3dbce2196261e9f119a71ccbdda1432d0a77641f3dade29920f7e89a66. 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/FRX202232508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe912e1ea93ecb1abfd85ef69733fa2f6ff9248341be53b78a98e0d4b98a0b010. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FRX202232506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0018e646d5f80dba27a7fe56715785324b4d508635139ed110ee1e5d13113b6. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/FRX202232517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f97b5be77f1163d8e5a72c7f1af2ea8b0bfae24cc4a99501764b3c0d5eece3. 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/FRX202298331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854241aaed3fb0e456a9733bef764dc31e040a0103a0a59b713f7db6d6d3cf3b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TWC019000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ccaf094599e80264543e3360e37d47e3fee8afc45c02a621b3790e0a61874a7. 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/TWC019000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03bfc45040a08a45e8646bb64a954da2a68dba1204f7b4f85f7471bce575c335. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TWC019000100.
二十世纪中华歌坛名人百集珍藏版—流行歌坛名人(1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1219fb755b646e5097bd59d2fc18d1349a81c4b3e3d651ec23e9c3ea9923c4e0. 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/ESA012360424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1783f64a00d2a12ce29ae1345297cee2e085ed52ed755411b271e4ad3c6b0670. 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/FRS182146937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdc5e034b2dc65ba213c7677e2fa9985c2b82189902249ff76eecae44520ea5. 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/FRX452114709.
年轻的朋友来相会 (2021年王者荣耀五五开黑朋友版)
达拉崩吧邂逅坎特伯雷骑士的奇幻冒险 (《坎公骑冠剑》游戏主题曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe328be5406ed7120021ad90b8059b91e261e28ea3b5ee41b9a5cb7b18ff94d0a. 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/HKG732022692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d31a51411b5ee336da3f541d1f38815789705d8fb35a3f107a7e7b16d65a13. 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/HKG732009814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a5284f1acc9ad560759b6d171191afd9845e85a4d37d9ff83abb3896c29e60. 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/QNSM12501723.