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 0x6ebd97b1a632430912c0c8e99c4867e6439882b715280dce8c8d1e27425f8b68. 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/352e9173-0b33-483e-9b1b-ad0fc6e1ba52.json and https://artists.proofprofile.net/proofs/artist/352e9173-0b33-483e-9b1b-ad0fc6e1ba52.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 0x1fe467879a51176246d52bacaa2888e7d28190aca0cf56353367012f6c821ecb. 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/NLF711604605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795ed1c944c16983bddde79dd6ec8805aa2912f54e2ef280e4d00f28733bc172. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZFYW1981099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7975be798d7796473d2d2e22289c7347e4c50b66d29a8209af47a6db28a99e. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZHN62030874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77c12895027f50895e9261c6f87cea521797b548a4605b887c255d45c0eab98. 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/UKN6K2001778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e33f6b1a37a5b505c8e18f20729fc8026cd752da70bf519a263cd36115a958. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZK6P2457125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a44591f2316dbc5176bdb6d3bb5b72564bc354457c771722be8c6583d87486. 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/QZFZ32524553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bae9bad2209dc232ee14fcbaa7d04c24f612ef6f3c131b2f593862aeab78e63. 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/QZFZ42510444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4584faeb6e1d910dce9403463e19b8cba9e75320a167409bba32e89bdca32e72. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZFZ32526119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b21182336cf563a2585c5395d5dd1a53f5387d526ce113d95d8e3a0ab6eaa4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZK6J2564087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb59f70a707e1ae9c5cfc4e6ee3b2bdfb2e637ee07bfcdb53456423552e73918. 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/QZK6J2564088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92fda392a7a16669e672731fe078da38791c26687dc81f84fe85307b8575bb6. 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/QZK6J2571333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55d548cbccc0b5709284bb592dfc9cdb0864c7cbd7697713a0ff54aa67102f5. 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/QZK6J2571352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1888ac5f9385344a7698b424e2e828a36e2c7ce4c1eb97920b58202f686ec9f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZK6J2571360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cd65cfa687f6d2a16ad2f912a818e7dc7594145be33df49c7fdb0f4b2752c0. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZK6J2571367.
Vibrations (Niles Cooper's Batman & Robyn Mix)
Vibrations - Niles Cooper's Batman & Robyn Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33090e570031aba6403c143d08cdfdce67c4baa888568bf52d8efd174d3b5140. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZWFN2513825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2319e9f57a44d69a54fbe7860e3a5fe2b8c7bd6b5716b5a81deabbeccff3f307. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZWFN2509493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3654e1ce2243f06ff7d0eaa39c5e44f798ef6c6a646c6a59fce3d118098fe239. 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/DEG932200067.
Schneeweiss VI: Presented by Oliver Koletzki
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5343d9a461a58030daef35574b69ae7405d8a8e102bc13350efeb2011311acd5. 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/DEUE21649304.