thumb|New Horizons before launch New Horizons is an interplanetary space probe launched as a part of NASA's New Frontiers program. It was launched in 2006, becoming the first spacecraft to perform a
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 0x3bc62562f9f98d43ce8adfd88535496205252f6e26014544663f36283b6b6c0c. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a092392-243e-4a2d-8fe0-c288a1a1d7de.json and https://artists.proofprofile.net/proofs/artist/1a092392-243e-4a2d-8fe0-c288a1a1d7de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mellow Vibes - Roald Velden Remix - Mixed
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 0xd3e778ff5a573da7af4e4c6008d81c5cf37e10e61b44ba0b5f50d4cfb3968372. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US83Z2040154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07843c4bc34dd80c70c626cbe925411bf6fdd265e2bb2546172ef0e4628c8b7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USSM10202127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f3dc78c4d1fbab7b58be44d47d3ae961cb4ac6cd5b4b60991b68309a3c7994. 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/USSM10202237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dff5ea255140b36235e75b815af6d190fd99fddaaa94d0f094e085c6a451d3. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/USSM10202231.
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 0xe7cebe4976b425d15f54283efe343d6e3aa4e70a3e569d1051a1685a0fcecd04. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USSM10202232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29b6a06b63a82dde78437a6029ef228a8988e394b188972d3de2c03e0f19e63. 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/USSM10704366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb176799ffeec7283ce76911667c5f737e21a297b915973a0e554ff764d666d9c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USSM11000437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010b86372a723c4305cef3e142d29119aaff1124d9010ef266ede6b0ae1b679b. 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/USSM11000440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66fad5ef3acf380246048db14d69e823b0bf03d6d709174b6f6970033a8ae0c. 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/UKACT1841944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68aafb3a197c352c50e110e8bc19f0e1fc8a2f45056ac04d7d319b724eb4d97c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US83Z1806005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd79f8c21711002c70087bbf72fb6f0fbed17bc8e986cde50880df79620ee35. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/US83Z1806003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a26955ec0229ba545421bee2b0c2192e80929abc7a6fb4540915f993157ad63. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/US83Z1806006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c89997f21547ec813185b786ecf74ba931177315a6b6b6b0dc392c6194e2e3a. 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/GBBKS9800304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22360b09adb4832de104a5f4b199b2e483e03848bdcad0d8f679e9365d443e9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBBKS9800251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca46102240cb56fb37139b63a4486b1d0e2c025f5271a87f06903ddf9545d5e. 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/GBBKS9800252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e3318e4619622f6c17830924595ede850bc6cef566df1e2df3fdc1107b3726. 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/US83Z1908932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499bccb69d4a0c4d75f8b049abbe00822ba9d13c638497cb374bf7d04a1ecbb2. 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/US83Z1908928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa409e575b68b38ffc681c397478ef1fbab04a31a246d4e6526382b80bd655bc. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/US83Z1908926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a64ffd8f7a0a14a1203bf200435442f359a6df0914a54c47c77e120ae655276. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US83Z1797915.
½ Decade: A 5-Year Retrospective, Pt. 2 (DJ Mix)