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 0x38d60a54d154d159d6697ab844b74390a63d1382b9248391e0d67f4c29a05451. 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/3e0df683-7b64-48d9-a632-05b196caa3d9.json and https://artists.proofprofile.net/proofs/artist/3e0df683-7b64-48d9-a632-05b196caa3d9.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 0x061fa8b9e1130a14ba6d59212ad9ac430b3b060be10a9f212231e2d76299dcf8. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:28:45Z), 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/NLAM41000322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eceb8f2927f00b9fc94208e68f1ac667bee577c0e3e8ae3b9767dda469af8f6. 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/NLAM41000415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b80d0e953bfcf75d2a6b698f6d383bf7e0184c6e856c14d00a9a69fd96fd98e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLAM41000416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b7fbe6e0ff0a78771e431cdd8836f90b7e0921f32f6bb462c3690a399c9a9f. 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/NLAM41000417.
Fucking Ghetto (Dirty Version) [feat. Lil Jon]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4c6d34842c5f640aed21cc39bb1161dcf023db58da3c79ca88c6f95d5e3b43. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/NLC281211596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29ba6ceeaaa20072742b7e7d8406b37e76641ac49bcf42bcf50486de412a0b1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLZ541400471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527a79844393c4cc02ee2d685228db1844344c2039d921e7b9b4125337efc98f. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/NLWV71400060.
The Underground - Neighborhood Watch Festival Trap Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4691be12aecdada1ee4f523c75287f8251d01461a69277009d8ccede77ed418b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/NLZ541400791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34afcf5da6e30f96aa800c26025e84a021ebe825c7f662e16532612822010001. 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/USDM31569501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda13a90fa9b2800d1242fe5c669a5ac34eb8b2ccee97bfc2c5bffe692e2fb765. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NLJ3L1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152824b5453b530b7abdabf300b3a85113a1a6ee319f261eecebc3c8d2745ed2. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:07:08Z), 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/NLRD51608056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6ed226ab3ddf8cffc80dbbc52108699c84670134233840a6cf931e643d5c05. 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/TCACU1676197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12512402ff984a5a2550f7a5dd1aafa568bd55adb760f52500a70d5010548b08. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/USDM31686101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bf518a1ff100060a77a8bd7c46b4c36a3c1cd617fcd766bde511f77f26f561. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/NLF3F1600034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0324a78ae8c0c4fade75106f44dd2c4454a1ade7c14f9182080b72ff609afc3. 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/CYA111500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433b5c6898dd2f8bd80417a86f6944987af2c7e394090c0dbd710d6aa045d03f. 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/NLZ541300496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b9c273b0922559e8a402639a9d4fc68f3fd63c166ae90691072a58244786a9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CA5KR1962740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572586b2e988ba43c0552d478c6e89e27a56fee45ab92ce06b077bbd9cf54da1. 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/USUM71804105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d109898c72f0a556a544c7f8543010a65de856a6c0b6c57a0d3ece946674d6. 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/NLZ541400752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddd9f818b2793490c684c40c4106baa50f8e76348f0fab8ee85f5157734a212. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:11:01Z), 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/NLG661800386.
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 0x5550ff4009e09ff21d1b05222c91d3bcdc5e4d22378840a0a1abc37dbb02c4d6. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/NLS241500242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328b07e9d05c6695af7b68f1b230372db34ab1207ffd1acad9367f7f5a5dec9d. 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/NLF711810979.