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 0x73017f5eb70363846aef920b1e37cace2a2b25b0f873bff06efffdf9f52aacdb. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a3d584c-8773-4934-825f-f34b06f973ef.json and https://artists.proofprofile.net/proofs/artist/6a3d584c-8773-4934-825f-f34b06f973ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
聲聲念 (網路劇《我就是這般女子》主題曲)
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 0x31db2950b791634fea41e8187c63ba0e4737f88e4ec452fc5ecdcd4740be1753. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/TWU712101145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf373fe2fda8ea3c5f18dff289532ebe17627c1dd464bf7dbf7975f2bf17f0eb. 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/TWU712101094.
心心念念 (網路劇《我就是這般女子》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5c74fa97f0d3c44e99d2d3e5fd6765a7d35d3da7ee1524f8b3e141512b5429. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/TWU712101111.
醉清歡 (網路劇《我就是這般女子》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9550caeeff194c28bb4f5a71313de7392a084c9136946b93d98694725f4337f. 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/TWU712101124.
花信 (網路劇《我就是這般女子》片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35637891995388d93c4d369a66172fcc8a2600d137388f2d51f4af6865a6650a. 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/TWU712101132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d828a8a1a808793e174b5091b7554139dbc25132526116f27236d76dae4872b. 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/TWU712101137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49e5bdddaa6417fa9f5eaf954b42d7ddcd3687ca4b32af564f9a73a5bda7720. 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/TWU712101154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7998006197a4e71d3f3b51ac563dd6778a70ea0e30268bba0f3c5949d4d747e0. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/TWU712101155.
醉清歡 (網路劇《我就是這般女子》片頭曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220361dc934f52db2a7d79b3d4e4c72295f378a3c73bd033b1e31782ad51dc02. 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/TWU712101156.
我身邊的海 - 電視劇《二十不惑2》片尾曲/主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525e90ccc4a25837b125108b44e818a91c660e3c45fd6f4757464f1ac6a6c462. 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/DGA052207271.
一萬件想做的事情 - 電視劇《二十不惑2》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aaaf4fe0944fccef75408560a6611d73507a5495826bb84e894ce342e10c557. 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/DGA052207273.
互為彼此的那陣風 - 電視劇《二十不惑2》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0104bb0bfaa9482aefa8f6193399641d033b4d53767307a2c610c7c3fe370ace. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DGA052207274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf373fe2fda8ea3c5f18dff289532ebe17627c1dd464bf7dbf7975f2bf17f0eb. 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/TWU712101094.
風花 (網路劇《我就是這般女子》插曲) [伴奏版]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fb250a02d42a25d984d546e8ea1c387fd22d31877a475527184b38b15556ed. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/TWU712101095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9550caeeff194c28bb4f5a71313de7392a084c9136946b93d98694725f4337f. 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/TWU712101124.
醉清歡 (網路劇《我就是這般女子》插曲) [伴奏版]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba27f53a09f82ac49341d41ff5ad756ba2284c57b3ff868687015758c6d23f88. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/TWU712101125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdde3654fdbd1d5013125a057690d56090b691381c88b4c891a9b46ce6efad8. 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/CNZ502001300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad1a9c97a87a5a9f92f9fe721b2c18dad8d0783606184fd0fb9a3df21f0f366. 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/HKG732156384.