1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb9c939696ecb11bd770b6c13552474aeca4fa31bd100ca05fbbd8eeae0b8c2a6. 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/a8ecea93-de53-4469-8710-a49fbd898de4.json and https://artists.proofprofile.net/proofs/artist/a8ecea93-de53-4469-8710-a49fbd898de4.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 → block OTSBitcoinBlock must exist at that height 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 0x8f3eabcf176ab809a5cf9923773629f1d48ee52656a9438722ee5159ca824719. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:26:36Z), 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/JPW242200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2e3a27221e90839989b6143b5270e6e4a5bf5b441cd8934f5d3b3c5e6d95a6. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:55:37Z), 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/JPW242200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ff6b9f3e6167d873612c83924396d14ec0ba804759da2cd320cd24879188a2. 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/JPW242200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34d267b044e222cae50a11c6d0a903de3a7b437d8c6585e8be8585511dd72b7. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:01:27Z), 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/JPW242200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8dedd339555bf4bc083f708f43ce0793e6d882b8f213dd34eb11321ab13221f. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:25:11Z), 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/TCJPA2427170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8dedd339555bf4bc083f708f43ce0793e6d882b8f213dd34eb11321ab13221f. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/TCJPA2427170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7985143fd179b52f2a70b55a98977c76a85c48644b5caf2fea697ada6623cc5. 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/JPG102500530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7330f033edb6eb940fa4f8e32be38445a9c7a681f0acd4b771ce25313623d2. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/JPG102500532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06565cb20f556f6e998452d49fb3a894a1078436c96212e027ea19ddd16e8d7. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCJPC2473011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58aff20251f1d92cd42360d5eb4e2c12e4e9db32ca23e1c8e477231af2e705f. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/TCJPZ2435500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf715b2514681253d79d34f5bb69eb63b76b33452a88f5838ed4163241a7c9050. 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/TCJPC2423957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39de0139c875eaab7755796cf1647fdb6315cbb69a76fa78db6c082669c0c8b3. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T04:18:50Z), 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/JPG102500535.