Cazzette is a Swedish electronic dance music duo, founded in 2011 by musicians Alexander Björklund and Sebastian Furrer. Biography The duo is best known for the songs "Beam Me Up", from their debut a
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 0x21f1a9a071105ab9d887ae4395558eefc83bd80fe3ad450bff2bd6f2d7f66387. 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/dfcb23f4-8654-492e-8b99-cee9c17b83ba.json and https://artists.proofprofile.net/proofs/artist/dfcb23f4-8654-492e-8b99-cee9c17b83ba.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 0x4a8af60cba86babfb5c93793bcadd3eb0deecde558c43b87d13eb79f20efd25a. 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/CH3131340154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d015614cd9f6f2ce453ff87b65522c32aeda0980cc7975e2864735f251f9e8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CH3131340155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730f04244361fbf0beebf5844d600b8a4db937ea8933dc0ae91f02ac3bfa214d. 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/CH3131340160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298df3411c9684fd446fad81d24587d7e1a3e505d21bc357006bbfbcb1b9f26d. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:48:13Z), 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/CH3131340163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424b6bf033209fa600dbd20150578ed2c159520069632aef05bd1c04a3dedaa6. 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/CH3131340410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7b713127b19f9d1da51d42b5d10fa69ee446cdbd595bdf2ae06708bc3fee6c. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/CH3131340440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea60a1ef66e0caee95c2c8efd653101545d4138786fd4c84b86220f176f51cc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CH3131340497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19971b16f634a9abe548a6af0b0966a3845e1d32590c083d3fea963235c0291e. 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/CHB701400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f463c969d8e7c3107567c999db53236808f09ac6dbe2e2650cad96ee2037e4b. 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/CHB701400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6480e88871c9223001a1d41426e0acf21123b1af9f6adc163caffed46042ed. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CHB701400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc5b4e3e5f8d6becf2dd749fd251efcc2ca3ca847cbf9bfe8bb8bf0a693fa31. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CHB701400116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44053f5ca2a0ac06b63320006e87a039330a022dca7e03a535a497fa13b7c24e. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:08:36Z), 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/CHB701400204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af321f336c25f9f1f0afdf2dfed93cac6747864e1e86735b4144cd54f079728. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CHB701400216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55e498c66dfc031b2e4c11dacfcdeeabf5bc114154c9fe9a4a43e3de1ef6181. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/CHB701400217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa729c2d6ba72908073b6d90f385157c45c166b7d537e602c055c3186e187c2a5. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CHB701400335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5234b4c4abeffa1428fbef293f884724c954ba86fa7eeb372fe5c2bf68800f79. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:44:52Z), 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/CHB701400336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e624a3c9a86d9b0115c6491347f47f4d1c1d028c07cc3b8ba7effc0aeb7f754. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CHB701400340.
She Wants Me Dead (CAZZETTE vs. AronChupa ft. The High)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e9d5d1f3ad1dd7d2aec3c885f9bfb7e8e6733407cd9af1f8bc29419b984db5. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/CHB701600088.
Blue Sky (feat. Laleh) [Saint WKND Remix]
Handful of Gold (feat. Jones) [Remixes II]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698552c18084aa48b31a3ef56b1e84557a4c6e4e0e77268ec715a37330c6c5fa. 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/CHB701800132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b58697b91f07d7b92f3406c3c5c81a8ce3e65f8e06d03d721dfc20eefa227a. 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/CHB701800126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f86f8b1b82a4226b21aaeb3bc52c7ae611facb9674d13490a5db2ec1357178. 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/CHB701800131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738c398b62351209e9965830d01b823bd22f2213fa92c4d95f0e9afbd43581ab. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), 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/CHB701800194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1952ac4d54ea1376a093ee1fb52780a4b0242d80deb0a4a20de8ec7a830c09. 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/CHB701800138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bba525d9c8596eb308b097f3de1bfbea4fb9909bf96608525109df2877c006. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/CHB701900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d096f8cba649a5cc0edb54b17c73b395f15ed2cf18f6e3550b62163183addf3. 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/QZC5P1800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b345aa349ad3b28df4f51053bfde7e4e079dc697dea0647778f451bd77f326. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/SEVGT2000115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586dceb9cb6e116b47725ca78597d52195c95f14cefe5237ab5877b459f1a222. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLM5S2001022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b1211dae95dfbd55f1e5ff4c8e04d87c3c5087af62e910b65074dc99eca6d8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLM5S2001034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfda3123e80c2980b70c2b001340ceeda1c7b93ffb5b4456d1124050a1ca509. 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/GBKPL2031230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453aba70bb0b5dbf2856d82b40e4228866740cf9c15e7c8bb57746c741199492. 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/SEVGT2100370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8b592e509a0e96dfbf7207e36b4a9fba7f8c979e39ef246ecdc747ae9b8796. 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/QM4TW2295027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06df36d136b50694ec4a94bcff8c9d85b547b971e342c1b549c2b147e33bbfea. 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/QM4TX2249283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde1e4d5e601acd9282b54d173c1d373476586e8589994a336efd4eaf2d46965. 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/GBKQU2278028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ffaba9fb3fcb7dacae9b9531f2c6b1686a946e95c08322c1f27930e7b4c50b. 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/SE62M2231753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e33916d84e45874f1ef6c80200c5343ac5bbb81edcb7450e3c5a3a0f4c64b20. 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/SE6HN2356654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccebccf7c30d251c7eff0bed62bfdb1a6ecd1382322d5d9a6288289fd739fabd. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/SE62M2336014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a124c9f1d8c8cbe7884040c3b7faf34efc14e6cdd55407090aafc44aaadfe9. 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/SE6I32403014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4786703540c460099dd296559ea4ac0c131cfd884f83c4a2d68d02d318034385. 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/SEUM71101144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749d5b663b775cdfaeb5b762b74ddde99f37e2e755c0e5083b304b02e6f7228c. 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/SE5752384191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4bc5b5b857a86be67da4f1a61a6bc1ee450c6214f998b8255467cf585a45ee. 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/CHB701600103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88a09b9c5b5d49a3e73207b8b6647693264cdc7357449c7343829c30d1365ae. 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/CH3131340442.
Sweet Dreams - Cazzette Meet at Night Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513b43901ecb39cf9381fcb4989c5b2dc8ce46eea0739e9d56619bfeddaad1f0. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/DELM41202589.
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