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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8e718801547694ec6a76ee3ac4118b36cbf7acdab527e13e6d2800e6d3b813. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0c9d81a-4eb5-400b-9157-c14d0f9d22fa.json and https://artists.proofprofile.net/proofs/artist/f0c9d81a-4eb5-400b-9157-c14d0f9d22fa.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd9773b23e050615501bc58ff5ff0bfcd33c86093eb69b0d7a9c4e0f5cdd2d2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TWDN31700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe193920affae4e6f0d0653549f2a54c9fb542506ccccda82eb897572dd53a3a0. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:51:50Z), 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/TWDN31700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa82c1b89e1e91703b50bb3bf0537fc222d466c268585aa2bdcd5aa791e5b313. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TWDN31700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407c3aaad1af4932bdb965b228e58df0d3e2680641e534b3f469b20e565d25af. 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/TWCC31900664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407c3aaad1af4932bdb965b228e58df0d3e2680641e534b3f469b20e565d25af. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TWCC31900664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a9119bfa18e901d0f12fc1f808f5d6a47a406471c1b01c155cb1e15a3f4711. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TWCC31903860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c89eb3414ee47c2d3156db93c66658aed1b16c584a4d1223ad73dbb1d4f8567. 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/TWCC31902275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0d340880a57ec6fac24268a362e227b6b7287396d4e8928b7da74636164ca9. 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/TWCC31900836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d403f747553170fd3bcebd84503ce9535b43020d878f9d6fe613feb1550f58. 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/TWCC31901439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a118a1e8a5bb4cf9c89070d2afd982872bdd680068b8e12075af1d98983b9a. 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/TWCC32004514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95008973e10440fcc472a1357796923e1ecfff8c7b1c3b386d77ce15646a2122. 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/TWCC32004515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65600ff5dd9a55c035558eb73328978706e258abd3dc4fddbea6d0cd5c9290f8. 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/TWCC32003429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbdb3dbe0b170bf8b35febe6309d6c6b2794e6f686d3909d1a284780f8f380e. 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/TWCC32004516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd582f02012f59b0c179580b1bb398ae5335e34e8ab4bd8863fa096640c22e7f9. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:22:23Z), 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/TWCC32120501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38e413a44475f485c1effe69a846e69fe0a807b5f94048e5fdd068a8776482f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TWCC32120543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b2ea56fb5ddc7eb542124db479b419c86c1090bf3824fb8c7783592ab12024. 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/TWCC32120544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ddbbefe04a2c2ec433bc453b7ad54c6c821b202b52a70fe6438e064986d25a. 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/TWCC32209330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9318853ef1916af29678a056a3de40756ba6d9f07d8af0ccccbbb9bbac259834. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TWCC32122612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe06c6f7b8305e9bbf8e523e01e212436d89211db0b7d0fd8b69402b34c5fd4f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TWCC32203055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7837fde2eb66fb3d5b0d6a333b2bf130f5265b431582c018aca17ed59d3b3665. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TWCC32209580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52066f052bd85b753cf3923b920171d7cc642fa2b4df9288e646d744f26007f7. 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/TWCC32206329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b8df4d17fd4e1601c24175a9629d3f0abbd6bf54b7b80b257183570d2a110c. 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/TWIO32100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47280b05300500e5783c0fb8c0bc7518beb3061836df3509dd42cdad6ad429a5. 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/TWCC32120996.
終究還是因為愛 (REMIX) [feat. 李浩瑋, PIZZALI, 陳忻玥, G5SH]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57668dd33baf7a02c6a55e3eaa72e5b88ce64b17a56bab41f15af09937c298fd. 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/TWA532200114.