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 0xe613b2d829c22e2d3c5730079aa9accc163e9c338f98f4fb723d0111b4fcb460. 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/6e064abe-70ab-419b-b566-706ac235bb53.json and https://artists.proofprofile.net/proofs/artist/6e064abe-70ab-419b-b566-706ac235bb53.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 0xc166a0c4908a0fb986406123a995786420fca45e054dabe0b9efa2fc3b54764e. 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/QZHNA1916882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f3656d61fa11e6d79311ab24a37f18bad2193666c94853863fb2565908f697. 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/QZHNA1916883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6292c89e532b957df6ab84b107d46c6d887691dfeab477b9b15973c691d87d. 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/QZHNA1916884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd12744bc2f40baa814f2bd2ca07115774dda2539416f0070972dd7e10a7ab6b. 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/QZHNA1916885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc4ea5de69cd1845fc37f23a1488244a9e8eb2e7b8698d712656af06a211634. 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/QZHNA1916886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001d0bf740e5b8f083937ca95c62743e2ccae03c5a73e21d7fd422c1b75c507b. 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/QZHNA1916889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe10727c814026882180c19bd4bda7e75d543a52af22500904975ec46138cdc0. 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/QZHNA1916891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa63580b9a1d22b56ae286a5fc58a24dccae2c40ce9c50b995070b1a199977fd. 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/USUYG1507957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104eb88cfbe5d15f2d7e473563a1da24ea4842e84b9219b25da34336b17a25b2. 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/USUYG1551931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029162564ab1a5a9f60f15a2e2802a1190f2bbf729a13190900e914be3bf3b21. 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/USUYG1551917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185f8162f0fdb06bfac729db9e56114e3c2482c8dbb82018e0535f130c3935af. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USUYG1551918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35d3a1b71489584c96ee8a114cca0d18878d29be12ee69d9cfca36c827168ce. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USUYG1551925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104eb88cfbe5d15f2d7e473563a1da24ea4842e84b9219b25da34336b17a25b2. 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/USUYG1551931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aff8695e093a5b2b5f0f1cc0bba0fc636ce948f0a60a9a76fc6480c9af9592c. 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/USUYG1507946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da290ba16a959c2bc1a71766263288780c3cd3caea67f6d8cf9e94e8933168f. 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/USUYG1507947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2cc4c074f436eb17de8bdf8fe3c1edd907b69d03994af982ce7430661f0aa6. 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/USUYG1507948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e472938e542bcd2e581addbb767832fa56975c77ca4783131d405e3a9eb589. 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/USUYG1507950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbaffa42c9057da9b7c4249d1a1ce0b43f92d47a6347db9f572267a7262186b. 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/USUYG1507956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95a38f9f290da1ad1e183f540f2227cb9bb0d1bcf25fd6bf72c616eb8802730. 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/QZNWR2212594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1d58c0d0aff4d873eca1084578c0c59c444ef38939a7c9cab2d97ded036db4. 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/QZNWR2212604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fac5c27665c3a85a1bf502348dac29bb0ee496f8bfe46b31b18421eeaa97bc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZES62231566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37e39ed6bf07e8a6e596e0262a8e6c7898fea76a23c7196f64ebc5915b8703b. 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/USUYG1719475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e3927a292fcb12e56f89279301b314274ccbfdab760f80dacfa5228925cd4a. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:53:44Z), 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/USUYG1719476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36827f5b3a1361d61fa0f982a62f9895c18eecee46c781cd362ee70782ac4a08. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USUYG1719478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d625347b1b05252be561e96f14f0e3231072b641e95dd1314c34671f7e74c9. 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/USUYG1719479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a18f40635ebaaf7e5a25852b2e9a86ba060059f811a02537b4c25193048939. 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/USUYG1719480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22eb833b1b1985e66aa094f95e71784432665816a13a7f39173b9e32823de525. 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/USUYG1719481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9714ab098aa79ae5db5a04059802228dbef5e308522f38d726e58ab0d7033a3. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:28:41Z), 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/USUYG1719482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6a523c282eb4044c3e1f9f295a66dba68cf3b6be32a6276683225cb1a9e11a. 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/QT6E82535446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e36a137cc0a9c901333c7910ed635a83d02027280e60af0ce70a8fdbba25bc. 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/QZNMX2546881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43ba9caf467200aa3de45bb6a717334b3bc3088869850fcc9dc1152a2fc3fef. 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/QZNMX2546882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f060425d17974bb646c19b346e47e26126636aea08109ce8c90174a67a4c49. 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/QZNMX2546880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12557be44175c4a0b8dac6bf226332b1d603684e863853929eb376f4bf8ac3cc. 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/USUYG1551736.
Wavy Gang Immortal (feat. Samuel Shabazz & King Hendrick$)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac97baef7b8822ce632b89d06df7b8944858545da62d8e2345f8ad1c469612f. 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/USUYG1447998.