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 0x0cf745dce53c25605421c84cd8ae6e40af00b8711170be5f6258281507d43fd2. 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/3926c477-d764-4a33-970f-b74b9b71074a.json and https://artists.proofprofile.net/proofs/artist/3926c477-d764-4a33-970f-b74b9b71074a.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 0xd92c58e9acb081dcb80391f434e9c318bdd253266ef271c69d4067649aed674e. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/US3DF2004266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c13d9bce46423afb506b76434b926e625dc4102f42dbf9432ae7612a21880e. 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/QM3DF2204875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf7759b0bef7c911e41ffcab4fd8b57bca14e512ec3075227cd4f46706c3dcf. 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/QM3DF2204876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f1f15e2db6317694018a101210dc9f9194a716863d30a00b65ab8498b94ffe. 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/US3DF1737384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb74333ba9b76a9e30dbc5cfd3e0d5ed1e27b8195a6b8343ec1bc4f2ecea0cd. 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/QM3DF2413880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7d38cfc66cfa4db6431a2499745c1d50e07ddd33b63713be879066adfe8aef. 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/QM3DF2413884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4292a5d470658522e1cc9703b7444e214128d936d403aa17864b7d9f667d368c. 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/QM3DF2413885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9ee57d7d7ab347d6c6c00358fa8963a70477026ae650615685dfddb34f6741. 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/USANG2463831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabedeb1cd8a3af5956fbab23dc1330cbe78574620f646bf83bc80d45fc27ea34. 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/QM3DF2413887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ac75277eb9c0e778df34817b1ca9381d420b695d010690b47122d3a346dbb9. 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/QM3DF2413888.
Ministración por Matthew Morales (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb69a6a5136a2a4d54233f97f887473220f1fcea1fe51e84ae11dd36214825b1. 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/QM3DF2413890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bacd715e79b3fdbf94d543118f8d863503d5888e2bc4e3878ce40d95f4735af. 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/QM3DF2413891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fcf48976e0626382591349895724875cd8a2f444a2779e625301154dc6672e. 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/QM3DF2413896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451efb245aa46623e5f3758c3e697b026f644a3ca334da079148c5cff7c452a9. 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/QM3DF2413897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f44d706bea34668a1f8973a0b7ffe37b7f19c6a8edc0495d8fc02558c82e9f. 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/QM3DF2413901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ed57f1f23d6e9dfa170c2af0ebe071d35acac1b284d31f4e2881cb52f6eceb. 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/QM3DF2413902.
Ministración por Matthew Morales (Parte 2) [En Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f652144bbc656d83338270618c6ba339ae422f016e0d9c43b2c44f9f874a27. 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/QM3DF2413906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eaafa6435552b738c9f0dda70ca973e3360ffef74dd2e2b3ae2a0b76b022853. 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/QM3DF2413907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fe6cd1d2bdb500ce616e5aa6b1537a73222242d14eb39d3f306a859fac1764. 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/US3DF2231439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ef6114a67aeb925e2a06f5ef80063881382b5f7f00085be0c98542afc78646. 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/US3DF2231441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba765b9188391b220248de3676f53aa1c26b04cfaff119768a6cf3453b139b0e. 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/US3DF2231449.