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 0xf49a90083387bd77f65e8c0bd5c0761dd8253d879bca00ebbf1d64b439d44d17. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eaa903bd-3939-4d78-8979-f3e6f65b3c30.json and https://artists.proofprofile.net/proofs/artist/eaa903bd-3939-4d78-8979-f3e6f65b3c30.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 0xd10d9d44002599a8d045d2ea271a7ecac55a56c8ccdd8730d13d4c84e4385097. 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/USA2P1548894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3a10c1bb7b2f07f51fdaef550bbaecb580a8e9dd2943f23322c72b6abbeaab. 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/USA2P1548895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ed16ab58243c49397dd2116ffe85e4e9340527624168d16fda3d929f5f1f73. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/USA2P1548896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989ce18a28546eea2aca56e84a20c13f4e09fd4be6cbb1fea94dc0bdef34a2f5. 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/USA2P1548897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d69b214d36c0a5430d8b86aa81a6a4233a837ffb1d7b988c2742513c46e6f12. 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/USA2P1548898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d68f89f59450a0b0a91a99d1945bd6bb261f2dbf5f3e4e697176021633ee84d. 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/USA2P1548899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed618352a5ed7d3a9b0b22d6758eb05995a41f2d26ab9f50598aacc0b6cf1c8f. 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/USA2P1548900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6fafe20feb78e9b8701b7c9cf1e0ff065185400961e9d8f7891b067279a0ae. 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/USA2P1548902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aae4a0e23ae3e2be36de9ed8b1628593e65f0dba7c6465f643942f3194d8439. 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/USA2P1548904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4a6e79f0923702094438a2620f71280adafa9089e2d5e11325204102835bd5. 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/USA2P1548906.
Never (feat. Magnolia Chop, Luccianos, Maserati Rome) [Bonus]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5573c2a5d6df70605ebff4499b3c9c377ebd6cdfc02f64ef11fc7769f321cc. 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/USA2P1548911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b463a883bb693f9bdac6758aaf4a6965b99113d5757d9b13444548d2e61cf53. 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/QZXLZ2384505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70104d64b8efc1a99826fb1128e441bf42eb703a991d82bc3299e2142d47d88a. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZXLZ2384506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468cadb714a2e3f7e249650cde2e225104a7d26b0c4d0423d3c1eccaf3946aad. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZXLZ2384507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e860ae1cc56d2f795497a607d60b49db19d07a21e947bf665785b6375960998. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZXLZ2384508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4fb88a74e97eabd5e6d0fb2597c8c6a9ff9f0f509b09bb0e3a3e8c5ec06cc4. 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/QZXLZ2384509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd6e79059fa08cb199665bf62b9e57cdce4563740a41e64291c557e67b63d6d. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZXLZ2384510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931af6504dee6a2152985380c47c882d79750f0e6b2fd38cd1b0571e05f3ebfa. 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/QZXLZ2384512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb697bdc791bb7f3faa6a8d60d20b392ca36388ecff452fbed88878d2f3f64a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZXLZ2384513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62242183d718a493302a8281a7f4a70e9f6e0e06d03692b9b48e26f87ee80380. 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/QZXLZ2384515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2581a3c1d2c75bef44cc13bf98ccf94dd90355130b2aa72d84edae68c658fcda. 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/QZXLZ2384522.
We Bout It (feat. Ace B, Master P, Calliope Var & Calliope Popeye) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8fad51b97024eccdc7cf23e6fd2e8825ee8fafbf60d9b4dbfc0d1f372dbde1. 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/USUYG1058881.