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 0xc5bb43bfbcc905dd63f6b12b7f2e4555ed4856ffecb98d8bc33733ca08cd0cf8. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dcf2f49e-d1f8-43c2-9097-03f71677532c.json and https://artists.proofprofile.net/proofs/artist/dcf2f49e-d1f8-43c2-9097-03f71677532c.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 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 0x9f218ecf8de294b8d0331c30885e83f032fbd767f30d859e5e62ba955e81c850. 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/QZES82236457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab42423d27c70fcb13fa2403c3e3e5d0c869ae40562824ce8df857fc2dba27a. 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/USL4Q2163642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e8adeacde6ee434494f277df130a90cd02eda2d78d1efdaee513c430956c30. 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/GBKWT0500633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e8261ff9c31c9e3297037c9a92d1566c28820b38da443537f7ee2de02efa96. 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/USYXT1000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eef16aa5be72cd8327c2bf919afbba9bc854c0bce72688139bf55dbc5c602e2. 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/USYXT1000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66a2e1656cb89bbc487d80953719e0d3ae939ed492e0cf103cd004adc738f38. 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/USYXT1000114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e42bfef10e2824a0ad626fc66d03a40d46ed109e0fce3f9b6a0a1a6a0dad37. 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/GBWUL1810283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f88c7dab20c80aa754206925ad373b75544e398d2a3e4339e366e5df1a49d3. 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/USHM81666090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e22bfda7a05396e2d17248b8d5c24648cf81c56411fd980a0c7ddc4a08f6a3. 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/USHM81666094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dc1482891f1213a09d6ff6aeb1e277e398c2e7208f78ea1dfc213a215af58f. 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/USHM81666102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbab335dcb69be2c9f294ec46cf21e11db99f64fb2baa3d7e55fcd547c16bf3. 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/USHM81666105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3403f92013dfa8784e1513a14bb09b5fda024d29341b19a3916ca73038b7a0b7. 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/USHM81666106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf028b91e24df65b13ecc1cd38a66a08f655b8dfea99bef32d1e029079f131299. 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/NZDR01200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869be993dfac6a2cfba96375273f118dc0168a1d33d8f1ed009de0bbefa49877. 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/NZDR01200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ce263aae1044d762bedd6e0ed2b7cd621f5416fb1f421a8148941bb22e37fb. 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/NZFQ11100091.
Bad Ass (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26953a262bec4a5728b9ccd8b2ab74ef06466de714f0438af6187a7c181fb66. 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/TCABD1109083.
Six Million Ways To Die (feat. Clika One)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59168007e167d1f0c5352ddaafb22c8cf68a882c8833ff3b73b24569d9a36507. 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/TCABD1234430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321b4241781a0cae5ce1ccbfc1b6dd9903b45357e306eee8af4dea27814b9f5a. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/PLB841800166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fa541273acaa86c419838bc5e051b71cd0b813f45fe160d074e6b23b6f555e. 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/USCGH1927894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78741fd2d663fcbbdc31e8e9d672fc5bc18ae7a0699417bbc8a8646d8db4aea3. 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/QZNWX2304131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd27038a1392fd3df1d1dbb12c6b4155cdc1845b0f8518b0dbb9a61e28edda4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBKWT0500485.
Death Before Dishonor - The Street Album
Favorite Girl (Remix) [feat. Baby Bash & Jah Free]