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 0xdaf36e41171f2b15efc1631cda9853b0f937f9047b756e6e14129a381a01e8e5. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03d613e4-62a1-4ff7-a84d-c02fc0258c4b.json and https://artists.proofprofile.net/proofs/artist/03d613e4-62a1-4ff7-a84d-c02fc0258c4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
日日江水 (《孟婆客棧》新型態影歌劇片頭曲 & 萬千帆角色曲)
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 0xbeff21d578df8189cd0192819dd7c169af59fa1a960dbb52d296cf27e658f322. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/TWI252100001.
歡悲不同調 (閻羅王,閻羅王夫人 & 萬千帆角色曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c31ae672cd9b78ced5df794873435b262e9a8414f0da57a20debcd2bee6d56. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/TWI252100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1faaa2ec947175e4000782ecad259caf3c24bc3a0deb7c3e98855aae0f6e4e42. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/TWI252100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae747e6adae00c8d3f2f80daaf7eaae9b211953043409df96f4f425a73841a5. 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/TWI252100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564142845a2b8fd8e1b14b90e90a523e421b2482a4147a577bada76a45f72fb0. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/TWI252100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe769b5122c85852a179a2f37f0ee4e08b0c7635875736a6ca7fb0befc7981535. 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/TWI252100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa15dafe40e880f38a147c94b7b249f69730d24b0cb53540c00bf471295c264c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TWI252100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc49f0776b6d8c46d04c505df799b82ee1fb639a92cee33ac18de795b5ebe76. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/TWI252100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22719098b8a5ab10711249f2147485603e8286d8f4edd360e2906938508eb133. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/TWI252100033.
紅塵過客 (新型態影歌劇《孟婆客棧》片頭曲 & 萬千帆角色曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdbd0fff203af445313bfca29d6337233cecc49e292398c4ce37d801a4544dd. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/TWI252100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a6a55cde34ac1cb05e0047b116fe672a601dc0cbcfc2d3261637aeb251ffa7. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/TWAZ11603001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7263b64676e2e6b8f006c2827610fe03f44725486baece964b1f2623c40315cb. 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/TWAZ11603002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff87ffdca270cae98f498fe565808f9422a6e51335b591034cf6f4de2707ec7b. 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/TWAZ11603003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3009c942b34362c2c3355073b00756010cc918471203bbafedd351629363d44e. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/TWAZ11603004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf076251c8888b3395be2a9ac61d79c3d0f5cc1516b905dbd8d023842b275eb. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/TWAZ11603005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf931dd4327dcae5c884cc45191b2271ad0fb3c3d71bcce1f7b0cf2ec8831644. 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/TWAZ11603006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153aaa690317120b813f91c6fdfe12f304fd62c4077cf42dc38f914b7e5b2c6b. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/TWAZ11603007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ae3d69d184e7c14a76d027c99b970203847e1e723fbdb2dc3e374e65ddd01b. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TWAZ11603008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78a989a9dc1391ef143bf10df7b07edaa448317ee5e3dc606bfafb80679a3c4. 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/TWAZ11603009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0933a34003978b6edd89766933b8eed6ce2d697705d39b7df174ecb4313850. 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/TWAZ11603010.
鳳凰花季 (大愛劇場《那一年鳳凰花開時》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fb256e8b51249a236397562445e70c77b369f658dba9dd9ee50d254345fc8d. 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/TWA871000503.
和我更靠近 (大愛劇場《那一年鳳凰花開時》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0970515a7b4f3b659d624b4a347769e06e5ce026e96e09fcdc07425a498a1170. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/TWA871000504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc65e9e2e354fe601e915384f6e91dab41aca2384104e8cc8bfca476629c6433. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TWA871000505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439904e16926a94f386c82d422868b57c8bdb6a901694481a902c18341f48730. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TWBH31800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cdee137e46dd3d10c86dff72b227c94785f033ed3a3d3a55f3ffb38e40076b. 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/TWBH31800017.