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 0xaef925b2d570872f6392c0d6423bb08feb28bf1d1d0e39d7abd315801b3a8b03. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e222db1a-cdd7-45b6-8447-132739d5d40b.json and https://artists.proofprofile.net/proofs/artist/e222db1a-cdd7-45b6-8447-132739d5d40b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Crosses (Sway Gray Vs. Sal De Sol) [Sway Gray Edit]
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 0x012850fc85d3569e4d6daadc75d87b4d585511e0eea409402f2d6b697f2d0303. 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/DEUM71503472.
Crosses (Sway Gray Vs. Sal De Sol) [Luca Schreiner Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8b6f9ef8da5c5956fbb606159a511a29601a0e600895b14def64b50b24188f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DEUM71602095.
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 0x01bacb9c88aaf002fd3936dd434cf0c38a5db70b0963985d3db203048c975660. 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/DGA072363763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42059f472137777fcc8e50b7490299ab4bf4274e00ab626a16e863375a1c3576. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DGA072363764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233abb285dbcff0f60ab93f326bee23f43727cd2aa7973eee392e36e45aac4dd. 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/FRX872368145.
The Tide Is High - Topmodelz 90S Maxi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ae0f375d568aa52d878d045d1ac11698ecbdccd0a387171d7bbfa725e3d835. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRX872368146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02698e9a69526be8bb4ebdadf1653c2abed3b97514d40e64eaad1c289cc41726. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/FRX762315905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f870288892ceb66935470bd7e3c339e6cf85f1a6c1c9223516f5bc29263d484. 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/FR2X42332658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05679507232d74aa7c47373daa363722c3f085b860968d1cf290d5019eaed0f0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA072233212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b746493d1a7716fc9720111207a91999fdedf3af898169596635bb1065d6a0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DGA072233213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebca29332d25d61eeb9dfb30ce2fac04f8d1bf55bb9fe42c428568f6178fd065. 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/FRX872237140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe838cb147dc138582b32cc76ff661c9bb7f98568c4998d2c74aa482268fe54b8. 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/FRX871516967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4928efcc8341f7cf8692d5e7819b87099280b5f88667148f3dfd251e7b80f9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR2X42332659.
I Like Chopin - Pulsedriver Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9e26347a6187038549e2143bacf7c00f5eb882b281931281c097c4c1383064. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRX872237141.
I Won't Hold You Back - Sal De Sol Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2037478b0d987eeebc1e7ee32246fe6bff895cb9caf177a287e52d6fbddba9b5. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/FR2X41859364.