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 0x6f415ee40f06434b6408bdd2e777ba236e335ac34123b172f34b992f2ce4926a. 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/d6ae66a8-0b40-4fc6-b2b7-a0e8ddde78cb.json and https://artists.proofprofile.net/proofs/artist/d6ae66a8-0b40-4fc6-b2b7-a0e8ddde78cb.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 0xa661f6e9382d56029f81fcab10654df30cffb8568626f80b4d403c40d8456ca4. 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/DEU672002989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090a1e36da153c9339b9b660cd360b9f3560e3e3dc054c3ffd17c8f187052add. 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/DEU672002994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f08441f9daa3f5e847412875e24d589b4ef416bbbc7f8f2cb6282f0f9f3fef0. 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/DEU672001043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2584020f54423539a82ce5c9e0b4a62fa818e2c47638fe851817abe3a81314b1. 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/DEU672001044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd724326cf9fe2f104ed39a5f16edb0114d895eeaa180e3317852fc1550d978d1. 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/DEU672001048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebe0ef6109e672b8759d448767fd80d5b688547816633ab1f02ce890c01fc0e. 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/DEU671902034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e456177bdf617684a678a8924984253b43afc5e08c0d9e2ffcea7cdcb49c3aa. 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/DEU671701288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7dd0e5fa1b7ecdc5c348a794eb30041a3a21dc44ef7b9af782da674ca655944. 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/DEU671701289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625140883c49c4ffa02e4721d3ac9bb39f6bb06accb0630791b0c3acfa112851. 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/DEU671701291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dae8da826fe00317d9e8aa50d52e47ddfe45b722b6c30e32e5fce2598c49011. 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/DEU671701293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a32ead214536196c22769a929c592b724656ec7244a2a6d4ace0b143675da8. 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/DEU671701295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d8f3b207f8762b05e135c7591d4bc84242c93912a5914dad4a59385588dee4. 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/DEU671602597.
Rave in Peace (Mollono.bass & Stephan Zovsky Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccaf7fe2e365d7d6a1fb4551aacb2258442d44c94ac92f8d08d08bc694dd301. 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/DEU672200396.
Flamingobuletten (Timo Maas Buletten Roller Remix)
Woods, Tales & Friends - Remixes Part Three
The Story Of The Sad Clown (Gorge Remix)
Fakir (Mollono.Bass & Stephan Zovsky Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386c08663fc09166eba5e613fbd0f748e8e40c30ea9145b47cf0aa09cb7017fb. 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/DEU672400842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc559c168f3cc6c5495b8422add8f59819a99915a0e4dcaa04b349e037c3fd57. 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/DEU671900911.