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 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 0x1ee056cffd60050e0f566b9dbf3425a44d329900b9b6131b6572a59119a6e238. 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/36992e65-9cf4-44e7-b188-8e1038ba0f47.json and https://artists.proofprofile.net/proofs/artist/36992e65-9cf4-44e7-b188-8e1038ba0f47.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 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 0xba121cf026232497281a0606cf9296b9ed4e36b19dae48d178c8ec84ceb0253a. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZES51859940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2478792d394edd490bf536ac85508fd928fc3f61bdfac38bf50ea270d44f00ac. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZES61947259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e30d37af075058acf9cc79a9c19092030e35a9b58c260e4242d1ad70952b7b. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZES61947264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7a27646fbf6a218e3dfef5d76c15653613825f4157778cad080ca725932108. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZES62000939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6835c28bcb085603df213717732a007e43221b36fa5225ace06acf88da378ac1. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZVEM2321166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b05ac07b00223bbae2f1bd05a3c2d7be4dc9db4df69ff4241a765b4a802dd8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMCE32100952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b023a4680b552b4cf9a2a31bc3f1a05457d5d597ca0235faac3078e094f8006. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE32200226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf839de25658184f06deabefe390fcb73b6faa35e18d5e8646ae61f9b90732d. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/USAT22203833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5afa8cd0839a852e580be7878637ee8f507ea792ebf914cf9e634676cc364e4. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/USAT22207404.
i hate her boyfriend’s face (feat. Mike Posner)
i hate her boyfriend's face (feat. Mike Posner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3fdf1673a93655d079e848f0c11cec5bb7398f305788b65f73eb66a0e64068. 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/USAT22208349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f60ebe26e80cc5d7b1046f4469701dfc12f26ca081d99cc2e4fd5a0492eb1b. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZVEM2322808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499c40a8ac7047656186293cdd7b14b3ba7687857665c337a1a189e73edf728b. 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/QZVEM2322809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369b7c9f560a3276053b3d0239f984d00f25572928dc2182d166b4c420426f04. 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/QZVEM2322810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678c4935fdb64d5598ce5b9a4698ad63e926a308411b31bb8a9add77dc556b4a. 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/QZVEM2323690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e61a844e3d99bb1915bec7449610c273054fff7fc858574facf22f8640d058b. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/QZVEM2323691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4ebb76586b400103994bae0856f2ef1849a958a0c37a7535df73c6ed387505. 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/QZVEM2387024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7907a906da7a8719b2a665060b965d6617635b5cafd585c1012458bb227ca7. 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/QZMHL2041313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126b323052f3f371eaae10fbf969f1f789d2062600795ba518dd386d73d59ef3. 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/QZFYZ2186872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b849aa858b287ff699e8133c2a164c156608ed9a3d517ebeb83ccace769998c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2010130.