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 0x0e14f70c2a1e9615ac1a7ce72bcc1899090fffdad0e774881d94d39263039975. 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/b614ec0e-8a89-4539-890a-072c7a8fba87.json and https://artists.proofprofile.net/proofs/artist/b614ec0e-8a89-4539-890a-072c7a8fba87.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 0x46fbec54132b7043cd82fb9fda2077b67ec33596c60540a5d09d507791d4e5cf. 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/ITB002201048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261ea6c119b2f9dda850eec2d4435a90838fe870a940bc5b944568a5dfd98321. 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/ITB001900555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3136d38841c591430d47e26c024bc9a5aaf60a3b5ca86b1f79983fb543d231f2. 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/ITUM72202068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ae838173fe7c719af061638c83606ec0619dca56843456aa0747ec75b64dfd. 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/IT1F71900053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef341fec5e0f1700f5372efaaf2bc275955572cfb5799e764002dd5c2ee200e. 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/IT1F71900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0911b34835805d9856ed55e52c9c2505aa54dc88438c2d21248108cf0b82b454. 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/ITTVA1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fe2d951be752bedc718072a6667a53dbf26d331ebb81eab4dc315014abd3bb. 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/ITUR31994009.
Ambientalista (feat. Dani Faiv, MadMan & Vegas Jones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5379f11481ee4a9017399acc365a92e1b5eccf8855cc4e1068b189cd2517e337. 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/ITFYL2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a5f0dde11a4aff2833fb82e931dfdcfc74f9850f64cf5d8e0fa9acad838a3f. 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/ITB002100547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66dc043711b4532f2fd4399706ba9a41dade2110e95ccc146e7ff47d12f5bcb0. 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/ITB002300843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c5a39a3dd39ce75c91dff2a509753d110d153361d84f384f548d091ce46a00. 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/ITB002300844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f17058a1e8b3a0f2cba6c0e61d4611a6153ca83bf4d2a9e5bb42467238b2cde. 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/ITB002300845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2dafcc2a7b8fb9b27bb566a1f28ad2736dbd7f40eec6ad6f06b5b9f6f1996e. 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/ITB002300846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481deb6b78ee9c3efcf19f530dc6fc0585346f4182effac16bc5ea916b410d7e. 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/ITB002300851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53272f250e1c267927be176cc0c34d25e6d39d0e20958c626121e1d1c740c210. 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/ITB002300848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b943611a037e2975040a1e0cb9096a51155afa4336bb30d6616254b096e0784. 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/ITB002300854.
Una chance (feat. Quentin 40 & MV Killa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ee95f488eb70060a2e5fba893af3d52b3fc037014a27f60bf7e75ea6a0f5b2. 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/ITB002300850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fbec54132b7043cd82fb9fda2077b67ec33596c60540a5d09d507791d4e5cf. 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/ITB002201048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b669a513299753757fc3e27617a42dd30da7d832706eb345a158d566de4a812. 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/ITB002300849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d272700f7ad95ec3a27547367e35ba25616ad10a1be230a06d600e456495b5. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/SEYOK1629090.
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