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 0x94fbaf6e38faebab7335ec71bca7fb01dbdc3e329e6a4651ed6f4400243f8286. 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/81fad574-8b80-47c4-bb3e-0cc7da5538b2.json and https://artists.proofprofile.net/proofs/artist/81fad574-8b80-47c4-bb3e-0cc7da5538b2.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 0x8afc1f26e0a413623e52b50c996a458e663a92aa2ed9fc7d3b1144b24f242f1e. 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/DGA092439962.
我们以后还会见面吗 (他们问我为什么跟他分手)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c264203dbcf82db8277bf695de63bad2f3e513bcfe897fbcd09124dd4f422f5. 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/DGA062478555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb575682b4b4d646e32ddd34311a7eff62d46d2fd1906ddbfc0b697ef4d08a72. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/DGA0R2403555.
还不如不见面 (这个世上什么东西是永久的)
还不如不见面 - 这个世上什么东西是永久的
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab87423eac501e17629a4f8f0fde987d313d069175cc27b1e7ee46e6268164a. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/DGA0M2464997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088a22b1269bf18f7d135754739554432acba65295dd78dea6b2764aa9353b6c. 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/DGA0M2424208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60401bd779a33fbb931dccac1de128ebceb68dc5d1add383c82fcc85b2ea17ba. 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/DGA0M2436579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffe436fe6135f28e9d6e5a7d4c18121e4ab3b3343c15065c77555e640f1e58c. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DGA092443223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4955e88020795c537453843e2acb750c888d3f2b9f884dca50d88a0362dfc1ac. 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/DGA0M2401885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeacfe50e7274623f9e97baae561b35b5f51028609dd8209064d96d8c19edfa61. 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/DGA092412445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20bea37e22b4c2e89269782bc4eace7c7c01a5e414a62c3fe24118239dbd0a3a. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DGA092426655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6b05a0cabfa2b41fc9f80d2b5acff7c6539b0a4bd8810f5572d371255aaa73. 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/DGA092441594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc56df0461f53b1efc10ca728a5c7d32e5aebf074b9b9f699354d779a146b819. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DGA0M2401695.
他们问我为什么跟他分手 (我们以后还会见面吗)
你让爱一点一滴汇成河 (旋律说唱版)
你让爱一点一滴汇成河 - 旋律说唱版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048e48fd612cff4a0da436d4657c6306c81e470f4569d4e6cbd3789cbc735e70. 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/DGA082479493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531334dd1caa81ee1c6a263a259df38a8601781b254803c25ad1e834c43c224b. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DGA052496873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480b3bf0f5d777a564725d2fe18cb6ad510b976b3008b2820ac0afe1c1081f08. 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/FRX872410849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43b98eb01286d970885cb975d49255903bb9d86edd238d6fa80030351efde66. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FRX202476958.