1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x19d8dae000b742632ce73c618e47a1218548da6eae15ef7be3f9b5f4e602cd62. 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/052192f3-32c6-4355-a00f-9ac5918610f3.json and https://artists.proofprofile.net/proofs/artist/052192f3-32c6-4355-a00f-9ac5918610f3.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 → block OTSBitcoinBlock must exist at that height 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 0xcab8a8cef09f74da52457377ec12b491984fd56310d30196658c07e493864df1. 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/TWHB12307001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f07b2928cd2a8ea8964d3092f1536d190a38cdc29f3eb1df56c3c7411b2401. 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/TWHB12307002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d44f63f86127f47df9d18c0e3d48230c91ba4080faf6b444cd812247672586e. 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/TWHB12307003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29354c873d96b8f4801de936251aeaad3f33b0f5c820e9fe9fee6f92915a08ed. 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/TWHB12307004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac0487113ea4033b2cebe44f6caaaeae495304f4d99a61f5cee60a9cded5e9e. 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/TWHB12306003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038fe4e25c956ea8aeba18b31b24352f253aa608127a1f8240f9a9d6b3f0f892. 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/TWHB12306002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb0f4790f0356d053c968c4e703b1b84923a4d2e5ced0b6e2c4dafad0576842. 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/TWHB12306004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4abfbb4dc9f2639a38bf7921ecb1632041994e9a3d1293dc34f04c3b1c06d5. 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/TWHB12306001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe4456dfb655d78a8d6f57bf061d018130ead75d46fa7cc16b14305e82218e5. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TWHB12307009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa040f4f29b07aed8a4de471921aa2cf0cf1c09c5e90f039319273059df25b64c. 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/TWHB12307010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629f931fc7c33286c05c74984ec239514e4624dc5c51d3959ffb87457a9a60ac. 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/TWHB12509001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb826a8095dfb1a5da86c62b72bb3af71ac0275d01e1f49045bdb9fb1d5bde14a. 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/TWHB12507001.
望向暖陽 (戲劇《死了一個娛樂女記者之後》宣傳曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1642fd84c47b80dd268c770e7cd7943faf2bbff49eacc00536b3a06872d695ec. 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/TWHB12502001.
許下星願 (電影《成為星星的少女》中文宣傳曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dda4f0c3415af93830a69a6b73f101204c0a7b8d85fb213cf54cb17be1b85c0. 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/TWHB12411001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc5e4573e38e15a38f2ace5fd04757c4be4de4abc053585d7ea7d982bc35f04. 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/TWHB12410001.
我不知道你知不知道我知不知道你
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f81403016893bee2af961b1187451cfebdc85a1abff0c18f46d78417925743. 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/TWHB12410002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ddf14f07a46b24f5c7aae8c81f9e61e975774d718fdf7122d5e8c16baa0f8d. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TWHB12410004.
拍謝啦（怪女孩超派版）[戲劇《我的婆婆怎麼那麼可愛2》主題曲]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb5bccfc96a3f041e5de0bd3deb68722028744bb2ce52d586052c538c795ef0. 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/TWHB12402001.
我不可一世的輕狂 (戲劇《你好，我是接體員》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f01e8a895f5ab8a1d6a6cd6cd3e84117c36110244596a44f081a1b676ad081. 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/TWHB12408001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb5bccfc96a3f041e5de0bd3deb68722028744bb2ce52d586052c538c795ef0. 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/TWHB12402001.
拍謝啦（婆婆好可愛版）[戲劇《我的婆婆怎麼那麼可愛2》主題曲]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7a9889c4879a3aff1f026a978b82db6f1a752615d75602b78bd3f46229d9de. 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/TWHB12402002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa040f4f29b07aed8a4de471921aa2cf0cf1c09c5e90f039319273059df25b64c. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/TWHB12307010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb0f4790f0356d053c968c4e703b1b84923a4d2e5ced0b6e2c4dafad0576842. 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/TWHB12306004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac0487113ea4033b2cebe44f6caaaeae495304f4d99a61f5cee60a9cded5e9e. 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/TWHB12306003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038fe4e25c956ea8aeba18b31b24352f253aa608127a1f8240f9a9d6b3f0f892. 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/TWHB12306002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4abfbb4dc9f2639a38bf7921ecb1632041994e9a3d1293dc34f04c3b1c06d5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TWHB12306001.