7 (seven) is the natural number following 6 and preceding 8. It is the only prime number preceding a cube. As an early prime number in the series of positive integers, the number seven has symbolic a
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 0xeb70f9e2a5adde6cee84c6843575e32ad3453df1432021eab9d428ae13f5699c. 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/b97b07d8-a9dd-4877-b3f1-5f59c31c4dbc.json and https://artists.proofprofile.net/proofs/artist/b97b07d8-a9dd-4877-b3f1-5f59c31c4dbc.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 0x90df0dff33017f7ad90240f3a6296954604fc9d39fd5596f77aaf4bb36254b74. 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/TCJPX2349157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47efabf489229cc0e751efacde991e0a19dbc638c28df1ebb664b5b74db4ab90. 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/TCJPX2314408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3df1e2cd8994a60679d861802add920e532656444a5675f19a8a5c04074345. 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/TCJPW2346629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504f8bc1f39e80bc4c9c72e3c74f6028bc8e56f7bc469a6a49ca1b6dcacf445d. 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/TCJPW2307392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae75df6580c6fd138825f0f6246e692cc04c87b851c2608b591a245a8e47574. 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/JPB602401056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25903466b8fe24ff4b5b4a51e9e0201f07cc6ffd19ab974c61eb0830f5bb6b3. 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/JPB602400940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4536683912f11f799e9123de07442f09915e8e9af8fce6423459316c18b4e97. 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/JPB602401058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13902b4bf7c37b9d3fec491dbffec53a777a59d055768e4101b37f44c1c50106. 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/JPB602308644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab36a81df78c1ceaa682862256bf2a089408e1b89f4797f12c5ce035198987f5. 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/JPB602401069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c0029ca4102d9947f3373296f32f18c3ad1a867b6f1305a1b0f158501c54fc. 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/JP92S2360471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60041e4041a62efd7cc9d3aad1056b7d35740fdb598d250dae5008bfe83e77ab. 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/JP92S2360472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a592c1c6f1a056c15f2bfccd8ba6f6fa34959a841da4035170fdcb82940db5e. 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/JP92S2360473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3039d5716f87815220ca86db124933d883a90e5747ef52bfdb3c48f16aa1f0d. 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/JP92S2360474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0dcc98b563d5a2c3d377aa4622ee90b1ec72517a1745ec6e765f3d7e6893519. 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/JP92S2360475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a878886199c1be2a19ce55a8c7a86a560babc81a397521ca2f2e3346b0372d1. 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/JP92S2360476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ea0723c099175b726f6471996fcf7db57129938e838a4d8003a43bccca6bc5. 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/JP92S2360477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6eb7a718db718daa402cf71f1bbeea571626f85c7d4b73100f5904a0e12022. 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/JP92S2360478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3794074f22ff2f8f5decd44d963755c170becb7232e8f6e0f708054c59225942. 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/TCJPX2316498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e15b97cea5640f4c0efa22e20508e519955cc927b826ab4a9c0f6242ccab44. 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/TCJPX2316490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55c796b1ac779afd409571f74c5b2e448e4b9c66453de5f1573a565f766f493. 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/TCJPX2316491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49725808093c413d84131fbe7dd672cbe516f11b636707dd4e3b503fccecdfcf. 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/TCJPX2316500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd8da64117cb2b9700885807484d5f78bb1f137588fdc8a71c578fbf95f8ace. 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/TCJPX2316503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2460666475865e165be46f70bbdf4c96c73ccf4b263da352d6cdc270a91ca744. 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/TCJPA2432716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a909d9b2da670c23a845d7aa0261e2de3cb962c62cffcfdb4bc07283d15cb1. 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/TCJPA2437805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba047efb8950f48e56fa726cb1cab018058a765b44f627ffbae511741f6926ba. 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/TCJPA2437888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb914071d0d3e1b7ff6408d5ae1f3d22bde320337f86297588eb25440ebaeb61b. 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/TCJPA2437915.
RAPSTAR CYPHER (feat. 7, Myghty Tommy, 999dobby, Spada & Whoopee Bomb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659c3ce42560f2a3f89bc0a56c8d828d16942e4618b10b6d506cf0da479f40e0. 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/TCJPW2356219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810b9b6eea8747be731bf9229ec26eacb4e5905244a025fa4925d639e0bdc21d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TCJPW2356223.
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 0x57d19f77d86f9dbb0389c032c93d28d5d4f0b7e88d2db90e5643b54890a59c3c. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T23:26:59Z), 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/TCJPX2355545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308644d013b2dfcd92900da5b0a4bb09e2955289dbb5c2548b83e787fb472237. 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/JPPO02404658.