After 7 is an American R&B group founded in 1987 by brothers Melvin and Kevon Edmonds, and their friend Keith Mitchell. The Edmonds brothers are the older siblings of pop/R&B singer-songwriter and rec
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 0xff184695f65b0955b62d336f4e931b0fb370a98b16505afcad2e6eb6cbbd86fa. 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/b00822a4-8950-4f79-b288-fcedb0f46c37.json and https://artists.proofprofile.net/proofs/artist/b00822a4-8950-4f79-b288-fcedb0f46c37.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 0x444bf6e93baf4f17750f5bc776edf79ef16c28011bf95028ec946bb4786bbbad. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USVI28900394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd8815f743e9a1d8fdb1f43b7a78b557f28de120644fb87226554b8b3fc608f. 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/USVI28900396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ad90e8cafa77bc5d1ba278fc39c0455b4ebc699f0c936c548ca54cb29696b2. 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/USVI28900397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cca39e5d407e55b8e59eb505e2f79e577434ecee5818f07ee851c1f0319012. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USVI28900399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f5403fa28865b67d744ca284f0273a9537fb1b13f813aa56181551f2f29157. 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/USUM72308346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd728daa885b2ad457fcc7f4f31855d6676762ef3e21d8d1df196009e1b2d570d. 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/USUM72400772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444bf6e93baf4f17750f5bc776edf79ef16c28011bf95028ec946bb4786bbbad. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USVI28900394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd8815f743e9a1d8fdb1f43b7a78b557f28de120644fb87226554b8b3fc608f. 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/USVI28900396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ad90e8cafa77bc5d1ba278fc39c0455b4ebc699f0c936c548ca54cb29696b2. 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/USVI28900397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cca39e5d407e55b8e59eb505e2f79e577434ecee5818f07ee851c1f0319012. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USVI28900399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0761a0ad40a1d44f8c3cad9a46a7d0082ced7b0daad89005c74be4d53c9c9772. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/USVI30700140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1a9ab1e30d57e6e3fa95339e8136e015fec64043768f2f4adca71fbcc5bf17. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USVI29201102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2867a65b807d0b864e1604b4fae2e235b268331089f771d3d3884cc1a9419dfa. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USVI29201107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1890a3c7964dd8276eaf1be5d8a7aa57cf2b620dbbbf6b28a515c28747d71d74. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USVI29201108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdb61ac9663a224b0c64f33834cde074031cd60a8b0095bc8eff3b7385baccb. 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/USVI29201110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0707f6d0b9d16988895a80fc1941368c2beb771af20c0afa2e1497a95a0173a. 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/USVI20700806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c7dee1de2dda3dcfc8f8ffc6af7c0f6e13b50c2532e71fcb13ab6dd08c7771. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USVI20700808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f101fd35c5c0d74af9036275e923f027a7f90e0df53288dbf219f67d61ae97. Chain 2 (Bitcoin): anchored in block 958677 (2026-07-19T05:47:23Z), 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/USVI20700811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1329d0749ff30ed1564824b24a93d11316afba4442bc35ac7954c773ebf4114a. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/USVI20700813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20901b4c659d2e0d571f10074d80ffe3bf22ee8d7610710939b82c12380ac091. 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/USVI20700814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4644a27de380bdaa9cd0fa7596595601546f4d040559daa36420e961661e2e18. 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/USVI20700815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3281f6fa43c5e3bd6cb1f70bbb2e29f78fbc00f6651b106fdd2a1d7fa6c883ae. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USVI29200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42fb71b40664ebe46b2c4a46d384fa421ea208d02945dd1b8d7a02d72cda310. 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/USVI29200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d7f92660519c8d5c88b7ec8cf568a04e80a00549bf4d22d87578847ad8afb2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QMZMC1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90731b0924e9f443822f299d7a59041a00260fb7f8a47defd678fd0da0e9590a. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QMZMC1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919ad53e29634a3cdfae3a37565d44d716923fde5b4084de522e6b1cea5d1229. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QMZMC1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bdc86be522ebb5247aa24642e67456461855bcfd3b3a03cd3df8e5b2834283. 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/QMZMC1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe592c2c910fcde6cc1e0e211755f68365bc886f9da1f252230fe2f26ba8e68dd. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QMZMC1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70eddee340664e81c4ae10dc845dd003703b5f36c5b1f4e4ee744a631dffa973. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QMZMC2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0653532d217c1ccaa8ef4b2440897e9f84b6c328500063e213c449e24faab73e. 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/QMZMC2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6a19bb28f2676450988db65665cb9b9579f0bdcbf4e2e617795b195f2531b8. 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/QMZMC2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfb3d0437b244de694331d2cd425fa87360ea9e71c7d8db858570a21c561cfc. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QMZMC2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293790a195f315cc07ac0695b1c709f69196abec554fcbb982450bf2dc19248c. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T16:28:12Z), 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/QMZMC2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3864deba553e201866ff039711acbf4396bb4ac44b68ee489ee7ffe033da48ca. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QMZMC2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0e9b065f8ea1821c6bfc5169da6795741f9ff5cefefd0fe66e09434d1e193f. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QMZMC2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf138af3e7e58d19a13e9dc0a0f0425b7dc78b5bf712639911a847fe9cb96a5c8. 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/QMZMC2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a077e3112dbe9772d8e473a6411c314f0b1b03029c2d2c599ac1fda80e05973. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QMZMC2300001.
ドライブが楽しくなる洋楽ヒッツ！80年代 R&B
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eab2b2c34306af7eb1a3ecb429714fea27cbb26b70d3489d678a7f25ddc879c. 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/USVI28900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772e831aa1300965cffcb3f015f8371524d9f7520a69e4ccc7f6a54a6b05c3bf. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USVI28900395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97300a4e99c95db051de29cccf7c1ecf9dc27dd4fe95746e5b588ef8f5861503. 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/USVI28900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e52dfbb4fc4cfddc6f84c7e4460d080bfdaf5d9493fc916327f793e128980a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USVI29400019.