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 0x5cfa16d6048e42acc50c0af3c79e84a8cc05506c635572da3fd29d5c3df49f38. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1f125a4-2a8e-41c4-8f0a-f847fda8cc25.json and https://artists.proofprofile.net/proofs/artist/b1f125a4-2a8e-41c4-8f0a-f847fda8cc25.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 0x3d50c73b911acee9d5732e599346c54a23578b1f1d818385b1fe0c8e21a9467d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCACJ1556182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0261b5c933ef441895582f36a08f8951b202ce1a61729f4a6486150dd4f12c58. 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/TCACJ1556183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3be7c870664c10f8d5c529d326e11d74fef3b4589c5921c873b8a706862ca3. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:41:32Z), 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/TCACJ1556184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574f73ae81206aad3fb80632c42f96a7784e027310fb7408aafada703dfb1e9c. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/TCACJ1556186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3afec043936fad3503352983f3ea7a8af5625860934f8ef0014e3fb8dd65f5c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBKPL1673237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44fd2c4aa42fabae0dbb9ba97fa5ac6e185e94b7896d98c1c6c512fd9642e91. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBKPL1784872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6714d598e81561754ac0a5be1137bb53e02e400429a3ec7639596d12a8d4190e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US7VG1921429.
Who’s Gonna Love Me (When I’m Not Young)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6839a826b5e868c265c11bbf95b8790a4a7b37f29687e2e46dc325976f337ac. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/US7VG1921511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0d94f77bfdced14e1b20d40729bf4a3699717ff116c0ce21729f4728bfdbaa. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US7VG1921517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6824e5e7bc08c2380810277c491a3b939f992eba4d4f3a0b352ca747f95dbfca. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/QZ93L2048191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be53deac3293e0ded4138427397567e36637b5a4b27b2764a5f41b852898244. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/US7VG2346545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6433ec67d7c24940a6197b402e82832647f03babb482add79d562c557348ae36. 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/QM4TW2472066.
Pretty Sure Im in Love with You (Ocevnside Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdc35921d286f32b0e031b15bfca207d916dfbb2ac346ce28ff88250852ae0c. 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/QZ5AB2190717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5ad955eea6757eaa17cff439be5ce8f876dcc3340edf9f0f10bcf338c18da0. 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/QZHZ32105699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21b46bd2001ff69e04187fb755204fbfbc1f0963cd08901396d2ee813190511. 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/QZGLS2102143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b49e465f8b3cd7bc7cebb5a9f1eecff15b1548f16c3745a8fbf82a6fca381b. 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/QZHZ32133252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7373ed739f968a9c4ac9c00dbc28634adf1d2a92fbf4b88a1e54208a33a7abbc. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZGLS2111925.