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 0x01ab7001ab559df49a22774a29326ead86683b2d06775c7c52e9167bad8aa4d5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/949764c3-d35a-4a13-8622-b1a6f4dbc69d.json and https://artists.proofprofile.net/proofs/artist/949764c3-d35a-4a13-8622-b1a6f4dbc69d.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 0x24dd5cdf44ecf2db2ed31cde0bb10d6f52408bc3343dac45ef3cbb24b05c1311. 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/RUA322204249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ccbb26f41063f044b1e8dac08839076eb0a1f140b1fb642d98964e51c47524. 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/CAUM82000174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81a1643ea69b1335629efa1a02f33f5d73e659ee52a5f2f26030308858e43ce. 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/GBEXH2400084.
Little Things (feat. Quinn XCII & Chelsea Cutler) - BIICLA Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e44ac83b28596c5e5ef33361e3a1fb9d4dda7ef4eead72edb86751f6b1d4bc4. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USUM72011153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e51147eacf8413974565321197cc7e8b4d01ebab424163a9c91ab5428ed1f80. 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/GBKPL2154589.
Hurting on Purpose (feat. K.Flay) - Biicla Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15eb4a94d4def3d157ea38663902f562f3d3c211e11be8e81b87902e4fdca46e. 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/USAT22100177.
Hurting on Purpose (feat. K.Flay) [Biicla Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15eb4a94d4def3d157ea38663902f562f3d3c211e11be8e81b87902e4fdca46e. 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/USAT22100177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433bcf2ac4dce4ac15892854ae41cfffdd289e0e57072f98a34b4dbc466c3830. 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/GBCFB2400667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680aa70ae7e3cc0ec4e8a90680e3672be9c991f86320ec3f8958bb4851df54c7. 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/QM24S2300417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a97df1b69b9b36308bdad995538de725a86ca563a740bfe69c9c71780b76ae. 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/QM24S2107099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680aa70ae7e3cc0ec4e8a90680e3672be9c991f86320ec3f8958bb4851df54c7. 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/QM24S2300417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedca206133f5595bb158c617e1fc3a210363ba80b6b1011227304a464b8d6dce. 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/QM24S2302130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680aa70ae7e3cc0ec4e8a90680e3672be9c991f86320ec3f8958bb4851df54c7. 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/QM24S2300417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce579a36da19f10eb458d1c6cb7ebbbd1983398a79113b3bad0817b4e8b97d3. 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/NLRD52257988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3606f469ef367e941625e04342b152671d6225e117036902c5646209258a563. 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/QM6MZ2440036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe5f7131bbbdeb4fa27bdf7212e9abd84feab4618c552d7ac558313f60af7c6. 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/QM24S2009684.