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 0xc9e05f74f6a47f71e6fc93c72b6bb5181a14306323af827f8a9d5ca6213bbcb7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c34f75d-aab1-4155-a9c5-47730b2f7cbb.json and https://artists.proofprofile.net/proofs/artist/2c34f75d-aab1-4155-a9c5-47730b2f7cbb.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 0xbc6bb4d084a5caab9e79233ddcdd8eecad50c95e97f0b417da827f50f696ec24. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TWDA51700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde19627180cc49b00438927c6112b2a7d2fdd94916d25291b5a068bf0f9c2c66. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TWDA51700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2b27d192cdc758743b253171e5e494cf4611f7ca7a10a4db20badadfbbc266. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TWDA51700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd964d9aece116c62c185f7cf5edaaf9a067fb6bedbb58a7f57f1b7947dab5d33. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:15:47Z), 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/TWDA51700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3f251b0fcf61d53b7880d802bee514ee761d373476a3add4c4db7d20b77277. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T16:00:38Z), 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/TWDA51700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e963240ffe441541743c77678bd87d99541bfda928567b5cf67fb9404fd6ae. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TWJ011900501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb84bddbe9b2ec77f5d595bc669296c5454d23469d4beac3159eeb6bad9766d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TWJ012000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aaab5fbf3829abc832706e10762a9f8281732e87d1931afa280ab6fc6606281. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/TWJ012103903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24912c57bc85279918303745308decde741eed3c0fd283784cdc1f7fc62b9458. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/TWJ012103901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf950f048ccebd90809f4a1376f8d311815d1f31a0a702b2ab53edfbadf5c9cc4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TWJ012103906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f4375f280ed2bee7c8bdcfd2381d0b4612013b8920fd7d9fa6458e56f8ab35. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/TWJ012103907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716257ee57b525be00440ac0c13f0ce1b3efde1fe2a985f6f80ab3a279a2488e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TWJ012103908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f90cdd7b55a4967b086b7afed3cc062ceefd116b1d776be9a2e27dd16b5bc2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TWJ012103909.
人間驚鴻客 (遊戲《夢幻西遊網頁版》週年慶 洛神夥伴推廣曲)
人间惊鸿客 (游戏《梦幻西游网页版》周年庆 洛神伙伴推广曲)
馭光 (遊戲《RO 仙境傳說: 愛如初見》賽事主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382c1ac7ddfab3cb1616350b80b306c81f387c270a45c0fc5f750c8cf540d0dc. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/TWJ012300301.
友情岁月 (电影《前任4：英年早婚》主题曲)
友情岁月 - 电影《前任4：英年早婚》主题曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed76b70f969f96640e293cb5fe1bb0922adea50b3f67c379c8a0b63b2343d9b. 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/DGA0M2326573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a12e72d6d78a6c97223789925d4303c032f0a5aefa0260f7f570661ac71049d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:33:52Z), 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/TWJ012401501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb422dac8b0466376228bb9d910cbc9a40c05d6cf9fd4f10a318d34f2dd624435. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/UKN492500066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7cfb45c280084e8b0c319d5c84c8df8011ebc541d08900ad5c8c6db0a0e232. 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/HKG732278291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27b21dc1280279be720d4943bac1432822863da33875e6683b5e723d22ebc59. 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/HKG732278297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71381cf478121594ab74260f5bd52e9cc498eed10e26ad17c8a2cf82085733df. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/HKG732278299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b4d6032f6dae916fe17d9c545c80f005bf8765069323f9ea584193df8edf0a. 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/CNZ852309313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea7bb663514e9e6b37889351a5942a2fe0bbfe4449f6f5e91428bd4b9ff908d. 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/CNZ842300576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33324bd771c156c4512902391ea4e70ec4d7b79f6fa1204dde1fa32c8ad22dca. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DGA062368326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb8264e8396eeef87e128d751baf04b08cbbd70cc1c56d0ca801f185a56e459. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/CNZ842300575.