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 0x059649445a04a616e436753507deed975d256c2b838568fb69a1aab94921eeba. 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/e957d786-a18c-43e8-a40b-a206230ee964.json and https://artists.proofprofile.net/proofs/artist/e957d786-a18c-43e8-a40b-a206230ee964.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 0xbfae87efb8a9165d1ac1af397877542acb9f1568c9947fe08220d5c7d7a78bfe. 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/SE6HN2264936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61e13e9fcbce3d7ba59dad7c68b687aa9e71a61f00c0df5c18cb1cbed33bfde. 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/SE6XX2181297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8627edd0102aafc6349593c58fd518c9f9d140b1990a8d84c215ec73070a392f. 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/SEBGA2400233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f9a0d3eccdc6f59dc4ebc17e65a348b93e6f7acf4d7f97c788c1eda15fa949. 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/SE6XY2117620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0fe0aedb7bb6905ec54edfef87da88790e4315649160616e10cede79d440bd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE6SA2417547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6923e126941ce9935229a6d6d91d5ed59be90cbc562799644ec9e535df6c9a. 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/SE6SA2411734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3008245c6c1f1cab7723eee6ff5e0d69509d2dbf4ebe8eb7f10888734cc8107d. 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/SE6SA2446644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64f505ad838f4449fccc54e7cf81a5c9229410d748377f2aa010937d3b6a799. 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/SE6SA2446645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1bfc950e3dc5a91dbba960dc8056379c1bd9786eef7afc184800b9bf3b45f6. 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/SE6HN2440046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd77328c6a091405ac3d0fd8218c7c59da450a12de01af9ea7d29088413c3e7. 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/SEBGA2202768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992afa33623d8f79bcfffcf4528ad61b1b3e1b98c7ca910e1afaa117310b865b. 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/SEBGA2400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8627edd0102aafc6349593c58fd518c9f9d140b1990a8d84c215ec73070a392f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2400233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f998d9c1083684593b29e20e3e23e29e7095c6a73f4627eced26aa5fd5c48b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2400462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba6ebc91945cff5082beda52a33f414df3ff2434a107c71aa3619ab4408d0fe. 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/SEBGA2400468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992afa33623d8f79bcfffcf4528ad61b1b3e1b98c7ca910e1afaa117310b865b. 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/SEBGA2400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98bc61699eb6ecb587fe5a271311bb1cabfb5208a514627778cdb031da4dc9b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE6XY2161569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85fbdfe51d1c2128e265bade16d5021d3cc609d572fd41bc48a474100601ef5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE6TI2131358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c76040090b15f7d25977a5bdf4cfaa654455011e250b0684f9e23871b565eb. 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/SE6A92103946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62806e381a0658598eb17aed2fdba6354acf6c596ddbeaca9ff556e070037c92. 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/SE6TI2063153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e0fd8417c224bdad694eef11b8e0cd3b51425441faf0205e77d6279df7af00. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE6QE2031212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca7e2230d9574f4ede1c4fae4f02af7f6c7bf3f60a69d8897e4595d94d711d7. 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/SE6QE2057811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdcedd85549c35df3e97122f46b65942f1c57d50acfae92407167f0a4f00974d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5752469521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7e47c0f6fd0ec22825155947821dbc7a51763b903d13b1daf624ccec093471. 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/SE5752469522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfb7e63f0ccd5e391af07c617fe70fcef22352c9130b005b27d23afe7a4c242. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5752469523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0ee4c6eae2c5a0b1bd64cca37124d32b157d4123ba91b0714c2f2bfe991116. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5752469524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654381c4aa68da6180c92a6b30aa402c9ee65968435616e635218f714ea1d12c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5752469525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d23be6f77993108242c23b9f586e6123a470f17cfacc84a71193f52376134bf. 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/SE5752469526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b5304394c8047f879f75bf1636a4248a35bd7230b6445d0d0f01226f679e23. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5752469527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb71750a2ca741eb82b86886e63980288abc7ea07dfc9b8e765e6591f4c1183d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5752469528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde69916b6a8505675f7a436e5cb530c8826e1a6655c67631f8e580ed503f033b. 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/SE5752469529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1346941f84dfd404a3c8f440fb87f642c7fd78a91e4cc20534d12b9846871385. 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/SE62M2108469.