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 0x8497302c44b2528703f1f3db6d5d8c245ab629ef5e8d4eddf58d80fc9841b383. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ebe4c105-911f-494f-bbf9-3b0e1401a953.json and https://artists.proofprofile.net/proofs/artist/ebe4c105-911f-494f-bbf9-3b0e1401a953.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 0xd0be442d4dd5ddd0b312b1eff9c792f0a0f71df34ce8e4b7f064e1f2131fd03f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZ9JZ1739977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1fdbc4be5e7791a9c6cddf3c43709215c0fc2e1a1f5cab35d35fcdcf15ea63. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZ9JZ1739978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61153039a6bf4cf278f1dc442f88363630f83a0af12fb2af10626d3704d8476f. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZ9JZ1739981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf74c3fd312cc82291e9e9a64dfcec5a74428d56584ab243b4d7981cf0f242c. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:32:50Z), 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/QZ9JZ1739987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85bca0a9afafacc794dee73bdb1c9c25c83f40dd2ec8d293d29ce5b07c85f11. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZANL1735083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982bd6ea35a5a6b8149e14081187dac17bb54023bbc6e512e8a47643b1d26732. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZANL1735085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718960bcde127b84c440eb0ffcc8b529f0da46b2542365ec8bb9f3494cfdcdff. 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/QZANL1735086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a7490b94571e0ea2454a32ee255e304298df3b459af1565a02dd7e4e336680. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ4JJ1832428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02871ebcc8e49acaf4e591e136fee5483ded3a9b1d25c2565c45eb460a4a7de9. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:08:22Z), 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/QZ4JJ1832430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ca6739fd4f8db0581b68c3939835164dd5ab299bfdc50995a70bff72903a5f. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZ4JJ1832431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5e2b6ddbef409bed6d110236a9ab7442d553210753bad08c581b235e2d27a0. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZ4JJ1832435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e673d37dfde6b6e38608c4369f873cf4f2f0937b91ad3fe52759ba93d5c1b4. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:25:51Z), 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/QZHN81934861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb289b2fb9bc2b7d55c140dc022c8cf78187109da399d540dc0037002b99892. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/QZHN81934862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed9a8aa1b85e7d1b1d6dc65cf10ad7af05c122bf439eae271a6015eb881f191. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZHN81934864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19508e622dfbaa6dc9acb890089c14578080eb08f98d24965ff0d04d2883ea24. 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/QZMEM2091851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab9f4cda39eb956351b8446d9d3ab180d8506eea589eafb8e4ca614ad80cb5c. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T16:05:57Z), 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/QZMEM2091852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810222fa26cfd91739291f748b2711f8656a17bb1f04469657e69228ab3fe4b1. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZMEM2091853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb764bf04f3fffdfbf0479112f72c37d6a906bfbd20fdfc7d8c7a6cf5b907f06. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZMEM2091854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5805f4f5ad62ecd318473b354f61b518a2b168c9c8156d1549c6ca5415e1c05. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZMEM2091855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8bac9c287674be555b99b0b445a3ed723f67f1e501b4846ef43ebe2d832946e. 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/QZDA42184819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160b8472b4819e9905a967833d11cd0e7eca7cbdbedffe8b481b55652eb8ef29. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:54:24Z), 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/QZNWT2173824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7514a7aa696bb287a8d842408bda4714384bfbdb9e1daab2f1bf9eb15b0686e5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:29:58Z), 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/QM5LC2200151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd976f6480a2cb280598b403e6c22b53f74ba6992a7c86462db6e4a4428e59cf0. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QM5LC2200381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a5a174e2801679aa5d5319d194b77deb53a597e08eea174a3e476a4ea4dcc9. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QM5LC2300217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294b797242c35f2b352ca7f959caa768a5ceb04158273830eb600b617c782a0e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM5LC2200152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10340ca4d69c79ec4402fb292161522d453d6ab42f1ef4c6d1c86e921522c9b3. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:50:11Z), 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/QM5LC2200382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44851ac546ccc8d89c735619ddf8596c64012786cbcaccb7fecd3a65f61ad1d. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:25:21Z), 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/GBWUL2415236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3088d6b2ca9f507d53da136495af402c7d4865bbc8129d29bbe5bef59eb12f3. 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/QZNJZ2463072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8521cede047083fadee7a904513f940ed04925860a0adfd669bec4885ba79799. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZTVM2433409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cdef39f9fff3a6f0b1441bc184846b80209f1318de88f9f70ee63f2f922a05. 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/QM5LC2300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49dc8eaee07793344cd100e6fc8d1f6559907249a33ca178733096e6c1a60729. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM5LC2300494.
Regressor (Battlejuice Remix) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c596be02707b263bf2ebb887e82ae8608f3d9665f810a472d4af42d5c72b147. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QM5LC2300134.
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 0x81c7d29b0cae694898f115a7acca908d8176c93f95339ede374aa1fb9b8e938a. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QM5LC2300247.