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 0xbdfc9fa6095a982064fd6500723fac099d25f4e00b6c139f5b847a287f73a8a1. 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/df7eb6c0-eacd-4b63-b4ed-9dc8c8675cd8.json and https://artists.proofprofile.net/proofs/artist/df7eb6c0-eacd-4b63-b4ed-9dc8c8675cd8.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 0x9aca96aa08393178f5d1a7050116bc1c6b7aa9856337b43355bb0985d05c5894. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZK6M2080425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6908581314169078838da72e96603e80c001c29104de0e256b55157f613c6d0a. 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/QZNWR2067827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5625948cb3f47c3a4acdd877a7aba96ac55c1ac08f2eafc7e763263463a74ae. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:11:49Z), 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/QZHNC2087211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfcd9b678024b2cf326bf827d82fc23a63536a1dacd26742aaff318540c7223. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:15:17Z), 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/QZES52196787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4614cf62b6c6b8b8266e3c9c30c107897e591012a104da9827d9694cfa88b96. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:21:45Z), 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/QZHN32157318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb248c0bf4743f6787d4fb11d1d3f2d207cf447c0837d4dc5925825d859940bfa. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZES92164393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a3ddaf8f9f44340bf95383d4b9988131dfc2fcdca73ad8a59132dde68e3c1d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHN62156902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1478e4ced622a9609460159bcae8d3a41f3a145eac909b11d47ff0d30fa7fc32. 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/QZHNB2192418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5eb05c2ba8a7d988c46e20aa13d21cebb6f79e300bfa5626e220c8cb75be9c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZHNB2192419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7badeb7c78755f3aeed44f83ae9ff25774da88a6b4d53c7e1b95733ce9c762. 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/QZHN82153237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9583b7597fa4fc13b4a8f53a5016b93808cfc51f6ee4fb048bb15b7a248f92b8. 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/QZHN82153239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c92a1eca9fcb0b1b5a5a756c6a2b237f403541654fdfb8792551b8b74fd7aa. 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/QZHNB2192495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbe49a27952b85de691d62fde104eebbad15c16b0abcf08b7013d728062e2b3. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:32:41Z), 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/QZK6L2147185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060fd22a6248dc381b43fe8e959ad32e99a6cda654018f31295f81cba3965048. 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/QZMEN2184751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7848a5680478140c51cc5129d78a07d7196a548b8e5ed96feadbd6b12320bb03. 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/QZMEP2106582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea3dfbc663e292c17905c25049bf43151376b3f4f3b8386183087ee5d19a9d7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZMEP2106585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a8ef2d9f49f0e2b2b8bf1c4c54020d9819121a64736f8866b30f32d14959f3. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QZMEP2106586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa666b5b2d2135574e7022642aef56da21d796f0cc95dd5106eb023f18264a102. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:37:10Z), 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/QZMEP2106588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbefac7b8747112da8cec4ef32d261727b95ce0803a1f617d4c6d16f254d9e0. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZNWT2193080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71730ac27b3efeddd1cafc53cf6b3af60ac9981118d21b36125c1fddda3529a1. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:04:23Z), 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/QZNWY2191153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c00c68df22eebd3d57c96d623035c26ea444ad96e12a0c1d9ddd8e49346251. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:01:14Z), 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/QZPLR2144444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0ada15ed1015a3359ec30cc388e1e2f30973f0c394278f7551bd67f9f53cf0. 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/QZTAS2102501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97ad08dd1134668ab696447725255a137f9a11c0f4a168447b8b80faa989377. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZRP52172547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b8ac95683273859db661f33c7a81fc5d59bfd8c10a0c250b7825653647f902. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZPLR2172953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7511266fde9b4911fb69307d3f224c5001f86e2419f9aa00aa974423619cb944. 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/QZFZ72248978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f664e0043bbc41ceb19df1fa0937ccb7a758752fbfe2ec3f3f2eb6abed5ea34. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:00:51Z), 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/QZK6M2250376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c690b2582b34bfdaa00a828bb219674fbeb465fda2ca01788476e38b81d8a0. 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/QZK6M2250377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f58f96084b71be16233602f3fd79d091b01a146c41dc54499df5a2fd871c4c3. 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/QZMER2292824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40a561ad13a97a94b2605473e76c943c40a5b962c3c21708919824059affa6f. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZNWU2250641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da952f21a3a5b7dfa8f5968a888bec428452b91d74a6fff67c93b6d375843c8. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:53:47Z), 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/QZTBA2294342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13078493e022e1ba8df31664ca803f0efd8a049ed040540b96047a6fbcc7bbd8. 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/QZHN72387253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8573546d7bbd7c0dfa449782456d48fd325f36fa31febabe8df4bdf632a573a6. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZHN72228001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc75f8849b50e3fd6a1b33d442f24dbca498d38f3bddb1b2ab6efcf67c6e4d02. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:51:17Z), 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/QZMEM2300511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256d479ef8afc68b42c6fb66f695780fc5b47a9555283b68ed91fff2f8afad01. 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/QZK6P2377261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13c0933874f67bfbb039167851c0bee033f976f51f852b07892d1c9e534fb8e. 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/QZDA72343001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b2c967cecc8aad35ba6cd92cd9f4fb98b08ac5d3098578a761950b98b73097. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZMEM2265660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3148666a61b30ad875f1b808c0d93b67226fe9546b9a2d748a6e185eb03973. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZNWU2388307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41665decd2cb70e2dc27a64cd54089a3b4c9192377a84582f321a1a4f8778378. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:08:15Z), 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/QZPLR2351655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ea4571e885fb037a95a12d47fd052edd5b232e534da1228bde476ef2077738. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZPLR2365456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd351c2b53e6273fe7932a309a81638a90290c76aea2643b102faa2be2993521a. 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/QZTB32380075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc87fd7c66e8d9efe0b83be26224d7ab281ed89cfa550164022efb845fadfdd3. 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/QZTB32372702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b2b4b90c0f8740704bbc4af7b49b528228d55452df1a1275a0bd7946df6301. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:48:04Z), 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/QZTBE2333195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14212e2d57579349283ce059ff342ff9cda53203b9954f0af4788e2f026901c8. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZDA42477300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8438fa0cd9450919811f9c002a4b0a8afdd510fb60d742ce521b26bb8163109. 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/QZES52442635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16abc0a9a9bf74c2470bbbbbbf710755113e0b2deb1c5da8c9f9f69b767427f. 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/QZDA72435133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3200fdbd616aba2c98109ba87cfa4bc03069f2ad6985f74f9dc63e067217db4. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:59:24Z), 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/QZHN62495083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35142cc72374b8aa50c19367d190a0325bbc2d3bbbd9e9cb31aaaef7f42884b. 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/QZES92452760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff219116361b2b575fe694735268049ad875b29eca2292d91c446019d6a71d29. 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/QZHN62495085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417dc0163e57f45d74e927f01f040c46f9830b8af4071a10360e2d9f728c12ec. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZFZ62443364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9ff3adb318066044b4efdf2f436d80e4d0e6ab7751e5acd75fb7fd86aa6168. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:15:38Z), 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/QZHN92434966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ca97bd8ffebd60977932086ff45b39cf87b903c63098b2df62e5f3cb98ec4f. 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/QZHN92458754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e7125fc110640abff05aac8463358093d7a7b6df3d7bb52b0a642e723d2729. 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/QZK6F2480430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d65789ef16943c9552462daa545ff13ec01664fe63574bfe8d21f6dcb8b9e2. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZNWQ2464388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc9a2c00d7b0494561ff5fa36ca106b16d9c0f0c2c2fa2b68521c2309461fdb. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:31:38Z), 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/QZFP52410495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a24d7cd80d568452ee8ea774a39fab354f2e45b3c2f0adc3365e97fd616bea. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZTAX2452686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485a855efd0bcf07a1818ed90a2f28be8824169a4372c4800ac6076005281515. 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/QZTAY2475245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50eeb5dcadfc73fc02cc726bd4fedb23face9f87b304968b6b896364e89ad3a. 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/QZTAY2475246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08d443f62e975904a1711db9bd19ade8c3eeb5f37ce99b11568fdbf0f8a63b5. 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/QZTAY2475248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2867d8f9bfa2f6bf49b9a0566be42914f33738a5e71b317acdcf79fbc3ae6d. 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/QZTAY2475249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340a49dfef2c19c149c24a6bcfb803faa189c202f0685d263d05fba443db55ee. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:36:59Z), 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/QZTAY2475250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04174171c6e80b9c60166b22a4dc714145e3f6042521e8b823594b68a09ebd25. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZTB22425003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a7f29344fe3317c71b63a593220ee153c6774bc7fa42e3f9fca5f7516da45b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:55:26Z), 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/QZWFG2409233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95497cbd0b20ac09b0b061003f87ab6fe9f2c462192a279c686e6ee2955a3925. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZWFR2437032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2def82bc75faca05838de7b562ac76ceccf3be3e17cb6b72600034ee49ab21b5. 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/QZWFR2433762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d079437fffa0bc0bf8b700a9543df44d3ff7c2ba47aab98492d93a8c12a702c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZZ772403984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157220d3b0f4bf84ce9a8676983fefccdcabf60a6a5827bed527b4ed3b5403b2. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZZ792485219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd4b5f601b33ea4d593da77fa8735431858e0885f671f182661f4858e4278ab. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QZFZ42548370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed09652aca900ec4d9697a7f320bf590200acf8a26f55dfc9c3cb2a1443b595. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZK6P2516306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95497cbd0b20ac09b0b061003f87ab6fe9f2c462192a279c686e6ee2955a3925. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZWFR2437032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ea4571e885fb037a95a12d47fd052edd5b232e534da1228bde476ef2077738. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZPLR2365456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f0a8e86d70fd3ee5591ecfc270c9fe9817d1997ca7d5c1f3102064532cdcac. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZK6P2516307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5edf192a3dba6df4317f7d397c6efcb94224ef04439bb9ad24795cf7f39675. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/QZWFL2452692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22a9c6f539d3119d39ee5c6a32b09dfaa47427f61ac85dc1b3dd89e7d9c5d1d. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZWFP2406623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872031ab82861378ed90575bc28eae254636206d799bd79dde685cf283746c6b. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/QZK6P2516309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406b87fc1565be630b7a7c6f2fcf1cadd6e4ef20718c2b9a5e2ed4a856058b59. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZK6P2516310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8bf6cc9729d9c909ed659901f9da4a6f284dbbf850d552824cdd79cf3cdd2e. 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/SE6XY2344803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd49bafdf3c7cdb74f7652985f680fff04ccbd60ae5fb93026e3c8c31e4b3b1. 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/QZMEM2146744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdecf7727d4523c5c2acaf13a481bf334fa4c1354652795347a321207ef0db0. 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/QZMHN2210166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d194e209ef49c953cad7db6f92b23f2036c0d577b9156aa1df9bc22dcd0dfe1. 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/QZK6K2247229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b05866ce9e8fac787abdca5e81f6d7cfdeeefb4c16512d0401089e15308de1. 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/QZFYY2589908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f9d1f14f55248551441fa3d585a1a75a5303f1547ee1de17b0c451e994f62a. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZFYY2446332.
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 0x8f84a31ec55142c538bdbeeaa382dbb2c0584da4caad6712f22c7bcc4cca21ee. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZHN92115652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95fe12e2185ac985ea4f46b06a0b5539881c1840437427a901eb66ecafcd2ac. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/SE62M2129171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41fbac6f63746429d28533ed342c75b6ae8cd8729f324063b74e595abe65c943. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZZ792471413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44317e06d8985dbe41416a7f52666ab71a74b2b6d6b34bea65c1ae0416ca97e5. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/SE6SA2453094.