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 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 0x97b15cb853650b4d92d379d98f240d705dcd68ed1a0bbd213a2d3f3fce92566b. 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/4a0574bc-e8b3-4647-a445-745cb1e80a50.json and https://artists.proofprofile.net/proofs/artist/4a0574bc-e8b3-4647-a445-745cb1e80a50.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 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 0x4e6f0a09d5bb5bc9f2875333fb7ca7b49bb1b9142db0edb6880ddcacf0c751b2. 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/QM6N21913651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe587d2fe6c7f815fda50edd0c632630732b5391b7fae018057ed4f883b66e94c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USCGJ2262625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbc2102191d2d28e32ff2eabaef40493d3e6bbe35bddc80de07d3d45456e9dd. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USDY42372677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ecb07f72e9366c34e4f5b7dc6d3efb673a7c7a4bb07d2ee6254bbccfd9b414. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/USMH92319128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05c969fd6079cb9acfe7e4b30255685c83a59009e4ad9c31266b424a553cc6c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USL4R2306407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bae9ff402c84da843d8a8540255b3b6d3c5246b495d16122cebff3f9043fb04. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USCGH2494142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd015ea508a7da4309341855aa3ce4eccf5e7ba3ed53c97bc9a2c4e04ba93bde8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USDY42466216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abc75364b59e59023ce6b722ca0587ac1aceab343464acbbff1907c4b4db991. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/USHM82416743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343f826b3a8e9fdec0aabb3d02c4d0587ed758dd5ce4cd5e5eb455e8d9e6a7c9. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USL4Q2446410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f7d7a653b311b4d3b13a0fbd5c088339a97591d76391b701b8305046df4ff3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USX9P2407876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec94a81ad0145fad693f7a3df5872039f89672a603b75c1f1892c860e09771f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USY242439426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8114c96461338be8860e93bfece158432bcbf8a7c8d83af4c41012f5141953d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USY242439428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b3c220f9eb68ca1cdf81ff153067351d727a3028bcc74398b811be886e0ebe. 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/USY242439429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016f659952c26cf79726d4dfae5846387b6ac0936d9875a3d966f4a0dcb4c7c3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USY242439430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d05f32e38b3461a753fde7dc791fe0d3fe0c60319286745adfe8b5c8a20c0a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USY242439431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eff3bde5199d65eb9643a11141f031ea1996a5d625330195c05bc4da958a03a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USY242439432.
Wonder What Jesus Would Think About This
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ddc42b4680476f41bfde4fe6843fc654645e11b3715118d75f8a5c375dcd04. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/USX9P2538982.