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 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 0x6289b70ffc2b87116cf8d2c2d3919b59e9b57dfa5832fd629edce84c870c782b. 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/370a2291-f359-4071-b8ca-edc043e9439c.json and https://artists.proofprofile.net/proofs/artist/370a2291-f359-4071-b8ca-edc043e9439c.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 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 0xa940b399cf0b751ad071df67a1025fe95b94fb6510db47043a5e4c4ad4d38fd1. 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/TWD252301019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38521c1306b9b0f86b3c55476dd8db2b25fda80bfbe7fbe3111b66b2cbf2b18a. 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/TWD252200301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3ef482434fa46f829b8dd384cae9fd4e65cd2c15a2ac6cc85875360527d0d8. 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/TWD251853631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd655d3e8223ca3081cf3420931eace47d9e1ede3a8630db7f03b4183ac139302. 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/TWD251822203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fadf2e0b0c5a20bebe3b343b86511c7f339a38562c242a6101621a9a41c366. 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/CNA231701429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf58941bb2ade0c866a02e5cb849dd1354f32a2909fcb105e61284d15271b788. 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/CNA231701438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e44b4dc0ef98d247c241950df0b31ce41dcaea227cd4276b205dd928a56ae9e. 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/TWD252500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3fada3e5b704c4de4d4a5bfc7f7c0aaeb17c7ded6160f23e38e9c1f2b210087. 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/TWD252500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19588ae8b6055fbe43d6ceb3186377c49319d697f3cd8e8dea4e9abd4ea15402. 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/TWD252400331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ab863d8119b09bd14825a1a0eae055d49fd0d99f9b3b8598167a4f69322b73. 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/TWD252400304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2605d1642b91df5edb459c13867f7dac92989fe2fd18869d16887166a88d5ff2. 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/TWD252300287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38521c1306b9b0f86b3c55476dd8db2b25fda80bfbe7fbe3111b66b2cbf2b18a. 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/TWD252200301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41c4d14360cf76b37b431cc2c13daf3809c1b55a6f73fa0b7b2e0b7735d7d63. 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/TWD252152532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8758acc088051c848c268a7b0468b697217641e393eae46fc28abd4473e9aeac. 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/TWD252152408.
最後一句晚安 (影視劇《山寨小萌主》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ece5722f148672b23e7bce72983026beb5d27aac582b7d3cd19bf21ce95c6c1. 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/TWU712002395.
讓我們去愛 (電視劇《只為遇見你》片尾曲)
只為遇見你 (電視劇《只為遇見你》音樂原聲帶)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf721fcf4908a5625163fa86b239d3c97506eb3849519a50008b4003e4dae7e33. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:41:33Z), 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/TWU711904866.