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 0xade6d305255e89b28808f56424d4363ff3c8503056598d2d6bc85b655eac2896. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9295ff75-0525-4a67-a4a6-9ca15f356294.json and https://artists.proofprofile.net/proofs/artist/9295ff75-0525-4a67-a4a6-9ca15f356294.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 0x6d4ffad37636c7cd17d747e644db36bac6ea0a9832a6a67ffe0ed903b085a7b0. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEAR41419992.
Live At Dutch Electronic Masters Music Festival 2
In The Grimm Darkness Of The Far Future There Is Only Woke
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071e29c85791c6b4023d19758f7b48dbdc8396c3d15d589865a82b0506da9e1b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USZUT2000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7324873401bb5112db1283d491be8f46f98a764eebcc76690f3954d6400a6f. 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/GBLV61809449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635bcc1d49f0798cc6eea84cf46cd2844b1237b7686f70f4eec4283530d09697. 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/GBKQU1395868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018d5f0b776c91c9fb0866ff551915710c0d5ab7fb29b7fe153dd4456323a8c4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLTC31200503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78835d972fb81a2ca4e7cdd173509804cb887f87d969ba1dcf4f99f3b6646986. 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/NLTC31200507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b212170fd945415a23074b6cf0da3a92e00a640b78d389e25d478cc25c0e87f. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/NLTC31200511.
Pax Europiana - Compilation / Unreleased Tracks 2002-2008
Solipsism (Part III In The Cumulonimbus Series)
Cumulonimbus II (Ambient Recordings 2003-2005)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8158f7074d0750cb6b9da3dab14db8c5f965d871f74a34f20ff1f70adb886854. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1203424.
No Motherland Without You - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6cdf696d79b23e58341344c6ffec56637b3661ae9b9ced3cc6171b86c1d000. 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/GBKQU1203379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4599f70b68c76afa0b4c232e0665ff2322697a2f71c77cdc1a65fc2be70fdb90. 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/NLTC31401570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd9420ea90646ad621577a8993310cb23141f431de32e8142b6d183d838b67c. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/BEDB21501004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450d32ba0c13c15bd1efc674a05abd48ce52a047e06da4160349709223dfdd62. 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/BEDB21501013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534e7b7a09dd6c6ef3a3597b605a5516adf4975b6eca522c3cef9bd436516d14. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BEDB21501015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fc98553c09e8eb2d1447d14612356060eeca244171e6325e3fd6f1b75f3b30. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/BEDB21501016.