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 0x30e0bfb87e87fd5d4036a202845a76e8add25639f238eb02d9544183c90fcd7d. 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/0c3233c3-a3e4-436b-bd7f-75afce426c29.json and https://artists.proofprofile.net/proofs/artist/0c3233c3-a3e4-436b-bd7f-75afce426c29.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 0x268f0922d0b06281fe129b8e541032a6583f2e8ad28614cdd27c81dd70e6a18b. 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/QM4TX2266138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb9b6076d45989dbdbaf5234ff4151a97324174aae68cf2111f70f9baa89a2c. 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/QZHZ52166724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe88f0a9903988ea57f9c4934fa953b0527c87b320926808f45687b3ea6711a5. 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/QZHZ32033572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd7b96ad9c5ff3423a599e20c83ed61a9f13da4eb89e710c0c5a2ba07d06838. 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/USP6L2201345.
Minutos de Presentación - FMS ARGENTINA T5 2023 Jornada 1 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e022dc459844e71bdb7043c6c84b3d276b22e627857b3a7760607f55fdce308. 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/QZNJW2372345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6a1663bdb1f78cc3c93b3aa95baf044db13c8de2e91a8257fc2c4e96c68b34. 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/QZW9M2343277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab2adfd5de4e2aba3c6514e60476a656370d8089dd1d9ede65cd938d31e5bf1. 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/QZNJY2344286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1464cd10ea3ea605cd32dd8a28c51cc313409a4143e45827dae1975153e833. 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/QZTPX2471134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685d45b4302d5bd68f921f942b2063ed1b652d48e8fd21da3a0a95a0a9a1955c. 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/QZTPX2471135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5ce443b38c12c81f0668c9ebe12bba4660764c4f563c83f055d42dcebe266c. 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/QZNJZ2443565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04718a082f5f99c80e20a913d78ec757dc873594c59877a6fb2f816257e99cc5. 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/QZTPX2471136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2634a9ce4883d008d6e11dc7f9e8b46f121025ed51e96bacef93ab70d2baaa7. 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/QZTPX2471137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30649aea51655a9657cfff17620c6542d58a709fef7deb8c8593c2d50dcb5f8e. 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/USP6L2301956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462833393ae766213cb67a9e4a29dadb5f3e28e51a7e99ab0b33f0921bf83c34. 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/USP6L2301963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cadbc88a83249c68014088f761565725fd0002c4514d88aa29b4d4bbbfcd711. 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/USP6L2402647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c19e6e81619619356ade51b5e3685c593d9688f1c97a15cc5fb6fff606f2fd7. 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/USP6L2402648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1f87cce8c95d7acdace0f833a394c3a2369c2b463b6c309a5516e31d77b8ab. 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/USP6L2402650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154d26a1f2d18bc689d841129ad1038051a1b0ca10de9f170981d2926c137ede. 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/USP6L2402651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8f6b78db379b702730c06caf7cbeec8e2e221fb490937932297f400503d25e. 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/USP6L2402653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92792afe4a3051d013f02e217c2b0a1caa57b4251a2663da989ff77f0f75eabc. 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/USP6L2402659.
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