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 0x463d86b1f3135b17ef73d8ed867b69883a20d68e6b355e83739b93927e2ebf4c. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/205d39d9-ba49-4e36-a5f0-e6c1f9b1384e.json and https://artists.proofprofile.net/proofs/artist/205d39d9-ba49-4e36-a5f0-e6c1f9b1384e.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 0x2101c0e3b1d4e6f7249490953a6df4ff7684b450f3c39b2e5336dcfbeaed828f. 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/QMSNZ1512826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8da99818e76f55832fed6055d70e527708b2c563ed535ccd3250046e4c0688d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM4TX1777635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ca619c3160e13c4cb2300c903d1e83a8d217c075c4a4d8e57c181aa8caf34a. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBKQU2044503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc967c8395caf7d8c2b1163bcb2ef09b43c524021fc084e3a7677c0ae0b29a933. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/GBKQU2164903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad2ba28cff306fb062c903edb252aceab41ecd064770a21130c5d9122b48a3b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBKQU2164904.
Just for Tonight (Stephane Deschezeaux Disco Dub Mix)
Just for Tonight - Stephane Deschezeaux Disco Dub Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82dde87fbb9568a3234d2372a7b954bd0ec112844fe1cc6b427372d717451b3. 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/DEH742201528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c957b1581e4f8b7ec3a8785575795cfe78b3881a2468bac693d2c1d01954ca. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBKQU2260236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bcb10d68fefb8c91675f6038dd46f1c3226a9f3e533a4cf38fa04a6e0902023. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T08:33:45Z), 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/GBKQU2356837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ebe30696b39265d9e2b9d011e55e6ddf317fd0a2e7b4eff6fdb48db0a9b029. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/GBENT1788006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9ced1e46bd6634ebb1b937f29de145107b6042b34bc2ceb1f33e0bc465eda9. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GBLV62413880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6faf9b4f967529d96876cce63f3d48ba1deb024016ca48902b31279b740bd5. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/GBKQU2502962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312c7b5606702984758a7bc096e5a6e63cca009494b5221c00d174e32c581f75. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GBKQU2507379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8dc03f3b0f2575cba633f97847519232c7c24b9ba7408e64997a646e1f8088. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBENT1788026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85efdebfe7ba37849f98f38ee8f9234de1d0b660712ca48741b200d47628d9a5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBKQU2542191.