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 0x8b22eec159d83950567b783398c50166cd2d6268b4e22757724cd4200d026ac7. 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/57d203e5-dd16-4bff-a790-6531543109c4.json and https://artists.proofprofile.net/proofs/artist/57d203e5-dd16-4bff-a790-6531543109c4.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 0x79554867110b002113ceb161cf665f7140912703f04d662b1fdfa3db0134af59. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZGWW2015965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf070fc02c69a1508a8a883354573a8f1de1787355988f05599672a6f0ed8097d. 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/ESA012188434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7da1a393a1b06627fbbbe9e2e8cdff0ac619940f6217a233f76022700cf680. 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/ESA012094249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d40792c561c460ad2957633e0f465a1886966f15798b1d1fcf911f02fac1b0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ESA012137102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd159725b56634503c1db7cb6d625daa19d82378f8a3fec65f3f1d02cbdb9f5c0. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/COAF42500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fcc10026cff0c13f319fbed75b2938736d6d001b97453352a7944011eff010. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/COAF42505566.
Concierto Virtual Imperialista (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73214ba4ca7c14ac9e1dfcae337b8a79c8af6c59eae5e1847c3f5d006fe0a4f9. 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/FRX762041610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141f4021d6ca29f78bb9c7cd1706de69b49c40d0eed81829e54071359712ba80. 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/FR96X2087068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e30a20ccf8e26a2491dd9c345ad8dc66c7bdbb2e5bfc9c82b2e5000264680f. 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/ESA012066764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72f9916fba77f11b31168697cc03783c3b4787799efd8f0c93ac81cf8e04279. 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/ESA012171158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fc16ad42eb2b2686ea4e6f4c26ec616830e543ae28a259ab4be9077f3f41fe. 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/ESA012177544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fcfefe39304d1dcca3142a7cf3054a22403f21d1e9da04c2f85c8d70e39f0b. 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/ESA011922263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9060d9834d51a03c046d2a7e9eb2cbf1d6fea13b9415e4dd91a9a27311a84e9. 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/COAF42495605.
Imperio 360 la Evolución, Vol. 17 (Dándole la Vuelta al Mundo) [En Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe370774053014b285a7477d37ceb92a4c6c910e922c8ccefe87b7145fb49ce3f. 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/FR2X41976170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecded82ca3336d196c6763f1113896cd81d492bcf0a88d3e54a2fa94dba2e245. 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/COAF42494994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb9a3db2664caaee56981b6c45d89838da395607a4927508287db3685f6f070. 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/FR10S1898061.
Imperio el Máximo Líder, Vol. 18 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef8aacfc2d4d4d10ee32fd48cc4542db3456a6d383bfbbd39d8e2de3092e6bd. 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/FR2X41944810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff559ca30644264a53609d9093e358f8041e243545f7b27c0f9c4cec268becbf. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:55:57Z), 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/FRX201642266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ac3f2af3fafe8ae5e2a2bcd5c03013ad9122d17a29c241a1da0cabae548a7c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ESA012169493.
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 0x2a32f063c87e9513adae054b208f72d679ffbebef56258df663d59f0b89ac814. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/COAF42392187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789d2479e4f9e6dea287efacdc8efdd48ff177af5fe8f7d5308beb02497fae49. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/FRX201664310.
El Imperialista Soy Yo, Vol. 12: Imperio (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a602069a06c9015fe798911ac77b705060ec0e97376281d60b7dbc25e2105a9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRX201666363.