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 0xcf4a6a9d6520f2ba35aeb5da47701c255dc6232ba1e297f26479daec65e9b990. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1eef62a3-63b1-413f-b6c2-af915328b4d1.json and https://artists.proofprofile.net/proofs/artist/1eef62a3-63b1-413f-b6c2-af915328b4d1.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 0x373a0f319e8bffb2b40b748993a910b92aac68c81247f70e69b44679c5c29ddc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUVC02105010.
We Are One - Sgt Slick's Melbourne ReCut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058c433ab7a03da80b9e4d2aad3418faefd1c3586588e84b436afd79af048240. 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/AUVC02105030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d78f213e4b1b911d367fa133012faaf348a8bb29622452e2a6cce01a411eb9. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/AUVC02105020.
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
Vicious Cuts: Open (Mixed by Super Disco Club & John Course)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6026fc20e2a9c88b2394b5e6b4d7e472e5b2089d4082aaf5e0069b9f8d75e844. 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/AUVC02108310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c09e4c56eab6300a6ff688c941c51eb1c12a6cade2737f8c64e907570cb7f9f. 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/AUVC02108910.
Vicious Cuts: Open - Super Disco Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0c7730b6c6392811fda256bcd443cade3a0ea53dd77a328b023b22f82b3f5e. 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/AUVC02151420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fbb755b9448d2e5cb5f21e90c6bf93c5160dd52e598f6b4733dba69458ad835. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUVC02108710.
Happiness (ft. Sadako Pointer) - Earth n Days Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6611dadd6a0f2d2a385c2b6f210d912840987d962dbe6304cff35f70e9f1eb37. 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/AUVC02108720.
Happiness (ft. Sadako Pointer) - JARC Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3354d81e511dd3963ba1ff2fe984f78297249881325501ac2f864e4934911c5a. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/AUVC02108730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb834a05552fa8efa250adda98c666a682852348fe68e4e2d596ff29557799cf3. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:33:10Z), 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/AUVC02404710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3695e1dcdc48854e8f0c5470a2cfd0e676cad992c4d5a3cb3d09bf6bb856deee. 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/AUVC02302410.
Gimme! Gimme! Gimme! - Super Disco Club Remix
Gimme! Gimme! Gimme! (Super Disco Club Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c766267fa6433bc709992930d92371f800b988cece5751f0b182cd43ec0d509. 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/AUVC02206210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1a064e372ea0f64a7e295a2221b050ce1a1d9473cc9ffbe83c5334c98e2142. 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/AUVC02302420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47fb6ee6d11bd0df7000b46e6651086858177703a077856a3b00ddacf543f1e. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/AUVC02108630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cdea15b16df17b362b2392efb366ceacf42e598593d0b3092c4a4b07ed2b03. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/AUVC02137140.