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 0xe841761482e5b2b5ebc1f770e61e3505deb8f03689d0c3918ea0627eff55e0c9. 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/5b91b98a-64ee-4c9c-b1ba-acab31e32559.json and https://artists.proofprofile.net/proofs/artist/5b91b98a-64ee-4c9c-b1ba-acab31e32559.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 0x6bee061e5ffc3b4b4aae52cce751ee573675d25e72ad89f1b4cde9f225211ed0. 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/JPB602202063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71da957e3df7e86ec6d6395dabe20ef78b176dd74025dd6772ffe690bd0e409. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPB602203241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71da957e3df7e86ec6d6395dabe20ef78b176dd74025dd6772ffe690bd0e409. 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/JPB602203241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db46b1f6fbe68d3e86f075a13089f1afdfb674c15e0956c3713ddea4e428286. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPB602204193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d56c221313a2a36c81f2adf79dc448e3e9d5872fae31defd8582d5775b611d4. 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/JPB602204857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3feaa48067cf8b88f0ddd7190e97718dfb8b7999c8ac41dbd089753c3917d2. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:49:07Z), 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/JPB602302795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a00c9151f56f44d9a36a91f1bc9a075423bc7cd4fdb30c5c3b691f4d271b711. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPB602304741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a00c9151f56f44d9a36a91f1bc9a075423bc7cd4fdb30c5c3b691f4d271b711. 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/JPB602304741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5b42e4cb304c7be4695762c78e23b11a794b861e65e5bd64bfe1e4e509fd6f. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:44:12Z), 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/JPB602312642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42155f56a0aabe4003826cb0eff4c8eb4cba04b8c739f345c1914c97557e5e1f. 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/JPB602312644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb016cc173a1276467f9258c31c5906e50fd629d76f6e701487e6d9871807b861. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/JPB602312648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e3e15730453518b40e5bd246c56f9e55bd02c1cd3a86373ded3c1d42aee46e. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/JPB602403977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d87b791d52f1aed4140208601e1e8fe84220a5dce9a9421ef2a95e875ab393. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/JPB602401669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e657d3b9af3dbbfd2cc135d6a642726547b2ee462b603464c62593e9b77ec0f. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/JPB602500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659c0bcaa60bee30b9e2cb809e9dd71d9709898abfdf9bff3b87c73cf409796e. 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/JPB602501617.