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 0x24626481c7ebabf81ac9c295a37f4e51aeae26deda96e1d211a27884e262ed91. 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/0cc92a02-38ea-482d-9adc-6b92f843a20a.json and https://artists.proofprofile.net/proofs/artist/0cc92a02-38ea-482d-9adc-6b92f843a20a.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 0x665a09af3fd191e86b6a6f1b2246f023b10527013f1ed547a4a8e9ae2524596f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TWA452300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b449189d0d8097ed0e8f92b4a3e0d38c7b47c139f8f83a9459eec2549b8c177. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TWA452315303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01212753bf3b8f77cd2bb5e01a0260f5ab2f0fdb3a88deabd4588aa05c4fc98e. 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/TWA452315311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18913517134827751e99175676c95080283e9485356edb38ef233f4f7e606d3a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TWI452200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222e4c047e3ff640aecf71a2f4a84f1f7eb298beda3ebcc0f5fab9622f67bf7f. 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/TWI452200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716faa8c1c3bcc4c3404d44b2e94ef45ea0ea1edbcc255bf9636085df6ba42ad. 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/TWI452200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8fb542ea7c493171b1d345e1a07ea93ac62f6189f787e8bfb5e0005c4d4d52. 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/TWI452200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8392cb564bbe311aa54a6c70c63a860c7909c21f889d87b405a8802bd5c43c. 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/TWI452200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8304db38b7e8c863af124b979dd0c3a4a4cfb780cdb499a3d6b552b049fb43e. 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/TWI452000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04df5df9fd1895fa7bec96fc0ee570a6de4c3e1dc7ccfd94ab82fda322dff4b. 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/TWI451900013.
寶島少年 feat. 潤少, Gambler & 李英宏 aka DJ Didilong
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165d6fca74204b301d94e2c01260cc5d1603b9f3e7e28ecfc1aeb7ef071920a4. 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/TWI452200030.
饒舌巨獸 (feat. Green Father 比杰,DJ MR. GIN,林可綸,西屯純愛組,PIZZALI)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059276c6175dd731fca919c0a376afb559f257109d6e204dea83bdb8efba6dcd. 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/TWJ012500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f13f715ac6b39b17693420fc5230870f94ed6dc1712df8310edaf2813723142. 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/TWJ012500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41faab7d6b2dbdf179bd49178c5fb9a2f82b25de4ca761a5dc2ac55d793514ea. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TWJ012500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1288c5699ca8126779acdbcbe2e3db0d248e435cf1149a3497701736aafc656b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TWI451600026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54b9a70c341b79d71b708b549f37b91d529e2c8015c40103e863e34de230423. 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/TWI451600027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6183d7dd0b67042b1b428d8c3b272ececfaf22e52bcad3c85d649fa295783547. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TWI451600028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa204d97a16120ecc2821e6a668e54847eb013d083b9b777a0491aa229cd1a13c. 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/TWI451600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8978abf992bb989b0ec56f36af3e8d52b604c3addb0213b9829b4d7e4883672a. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/TWI452500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e657ab8bbca63121a4a35165e2e0cc730f61f3e390a964b13627fddd068ea7d. 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/TWI452000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04df5df9fd1895fa7bec96fc0ee570a6de4c3e1dc7ccfd94ab82fda322dff4b. 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/TWI451900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb669bb4cfe4bcf77eb655b8c9b6d27b4b05fd4e29c7ba1be35eefec9bbcbb5. 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/TWAE32402882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8795758206212a0ebbe07571c1a3ecebadaa9a28f394fcc33762f835a048fd29. 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/TWAE32302273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6a1ff385c07f568409469911f58adb2519f76fdedd8c3d75b138a5abd16a69. 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/TWAE32400361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78df91a8fc689c9daa010c0d57b049fc307237b6fbf42ae7ccde0fda8f92e66a. 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/TWAE32404359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cad8d4451d7d4a970c7dde9f8565753c4a337d1cde6885fb18a0a4c3cb6e548. 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/TWAE32404360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a259dae33303fb1358c627480c81501498f72d33a6f0f87ef72082282a40ec0. 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/TWAE32404361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64aebff77a8870dc366cbf17de0acf82b200b6ccedb277ce77140b95c595880. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWAE32404362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f7d514a78e4f8c1ff25d517f70e4573b1a37e230b554c58ffed870dd7d316f. 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/TWAE32404363.