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 0xbae8b85dc6b304fe64d99e53bed0428c42f0fc141479a0734708e6690fb98599. 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/1a1c3b5a-a733-4fa9-b761-fc5663a63e5a.json and https://artists.proofprofile.net/proofs/artist/1a1c3b5a-a733-4fa9-b761-fc5663a63e5a.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 0x6d54d3f016e11f80b1fcda7a436add767aa121bbd06ae9eec390e0155a58e99f. 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/CNZ502200522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1962c23813bba501a408bed74a8a5668e5aa1e68d73a9e0c8c696a24e45dc56. 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/CNZ502200524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e0975015c457ab20fdd7a87f0a5ebb926d99a0ffdfae4a232bd957a3177e36. 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/CNZ502200642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5b977f2b15244c21c2108e61524ab926d85cbb9e3c6a698788eb2707434404. 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/TWCC31300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7c88232bd08fc558cdf910fdb5b82f4ef6a39d5ed04ba5c7442089aaee3057. 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/TWCC31300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa174658ee333d324c94c14e869ee61686ba2cc30d7bc755bcc1a8da1563e684f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:27:55Z), 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/TWCC31300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b19004964d786744bb096dc327daf60386537b5e5e11f6bafb6a25b9b876f8e. 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/TWCC31300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa5737f6b2d5a2de6f39f2fd25151ebfd07f58c39444b513310e46fb8cb7536. 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/TWCT52434873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ee36a7afc92c016602c219d3bb9922071e0e4379ca6af7e9bdf194495e1329. 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/CNA231803647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c9cd174cedcc0ab337d0f5f5a2427acdfb3b012c7866e646ee9695472d8543. 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/CNA231803642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd581a7466962b6a11db3ddc36e302d48cc9324332d5e75d5a016e8ca55a4a4be. 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/CNA231803772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007da3f77b8dbd2113448b2818541d8bc7dca43395f0ee331b21e2cdc6f5d793. 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/CNA231803770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cebe3482cb714936f774b6715f45e87079ba8ee2565074277f65b4ad8d94c3. 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/CNA231803712.
同學你好 (網劇《教室的那一間3》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2087b8f032ce1c2f8e1b508ad3e1b4e415c85a071007e1037283277d30f9507. 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/CNZ502200539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbc6b184c96e24dd095fa4fc25aa5f37503dd2e725ae25a69d48c6f4b1b8fde. 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/TWU711903801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacaf1955802a27b6b8af210ead7b128e66c95d1c7596e0f761af631733bc9324. 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/DGA072457627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ce95724a961b3b569b713495f13db172827e2cc3468d920a71b580c6960844. 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/DGA072457628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f5faae58f1300152d689c83cfc18d417810f56ec6e08c50ce7d91010a48498. 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/DGA072457629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc7f9f71ae9ec0d5210109a0077c362814449639b1f15aeeae6e5a62960aae1. 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/DGA072457630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bc440748ce17c99bb3ec68dee934ebad45364034ec0f7aabae14dba9960990. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DGA072457631.