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 0x24875c86e5542cc6fb0c61b1b2a726e0a57c376703e20738609dfac934493ca2. 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/14148e4a-7e9d-4f8d-a1ef-47722dba60a8.json and https://artists.proofprofile.net/proofs/artist/14148e4a-7e9d-4f8d-a1ef-47722dba60a8.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 0x60333b98bfc1c1770bf28296be85c7f9d67413c80b0a80ecd26bff8914ac2174. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:42:13Z), 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/TWHG32100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc017bcf44ecd058ba6ebc85e715d454160159520dfa33255a5b34dc5ef80b20. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TWHG32200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39701eae43eb69973ad1bd348c61defc0c6157d29c6171b295b89ef93a69b69. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TWHG32200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66ef8650d779969f99480e0411622a8b52851a4f5e5b61943159c21380591a6. 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/TWHG32200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49499d238d67d52d81d0590d3c59a8c11d072b94b1d56649f7895bfb44c9a325. 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/TWHG32200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241e3d3e1d24e85384b51f63d058d00f0a38ce7731a1c2ac74c494eec79035e1. 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/TWHG32200022.
大顛狗 (feat. Drew, EyeballRay, Macdella & SheATH)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b761166bd6f6b2ed87b85d4c7049e59f1c92319a37e4178a57b143634386d63. 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/TWHG32200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977b179a4a28f9bb1a1435b62eb74ca067f784fb6f7408156068cf87dab28931. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TWA472271009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19eea7cfeb4afce4a019006c99aff78cada517e0a1cde9f7b68b50f79b1959d. 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/DGA0S2473080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e0081d35d62c7868bc52c7c96c63582220755e9ba1c78201e0ac02e3709db2. 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/DGA0S2473081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539cebc81a2a0e029a78ba4ee150c53f1e9d7126640b82b0a3b2ca87da819889. 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/DGA0S2473082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3b3cb72e3d9bc121bb78460d2f15d81d782952ae639b6d70784e2244598757. 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/DGA0S2473083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d705371e6d48e89f1d626a32ce82de449006d0e8a81bd84aac9acb2df37996. 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/DGA0S2473084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854d9d8ec7996e97b03e1ebaff136f2b1ccd3b957c0fa82bbf731978cda47088. 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/DGA0S2473085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a9e3e13e422d47579d5126deb8af7f362c96acbfea1669d9c2a872e4a4cea0. 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/FR59R2215933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb9512f0bcf13c16bf38c78d2955fd0f5c39c9eb50eae50f7032474494a722f. 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/TWA472271010.
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 0xcefb78481638015ce7bf98ac3c9308867f4e246f021ec7e9b3849eada90c60c7. 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/TWA532101414.
有緣作伙(feat. EyeballRay, Macdella, SheATH, DREW & Yappy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07dd8e7663226fd9c6590c010426dde01610dfbe46dc5245ccaed05ef48459c. 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/DGA062477687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0429ba09a3f4965e3e4108eccf1991a5503f0063df5ffe01e14701d05e9615. 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/FRX282385618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eca91bb7024eb8a224e623ef1b76e591b39b44f05368c1dbcdef1686ee26f12. 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/FRX282385619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50f733aca7a3bbd2098752ebd042079c23e3148b0290639d238314d92dc97a3. 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/FRS182103204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3920f17bf7fb71c6a6f806022565478ad5a4eb48d1c74e1fd5fccbe43d7235. 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/TWHG32300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40f02eaea446e2e1829ee438e42e5f497c6bf8813c6579694298a55f8f27c15. 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/TWP012120411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5289b8c3b02949a5a598e078e866fc2c09874c21b58a96539368bfe3f9dcfb. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRX452330916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5238490a1c6565c9ec1e78f0450ad40202f8e78a3ac24cb91ded8e8b63722843. 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/QZTAU2285038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb546fd4ff1406c0ee6ff18cb2fffa2e4345a7c6cccdc31f220ba537dfcde08. 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/KRMIM2139994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa917ec4d8f2c31ea007b2d7cd1895c5e35fc1cb46dbe9e2d2ca4aa2b60a0d8a2. 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/TWA532101506.
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 0x8c0ce43b26892948ad0f84c7ed9fde0392f46058db4988099a4e22f8d4e3fbcc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TWA532101178.