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 0x2d9ee861f6763c63026ffcc5339e0824b33374731c36893719198264d68d386f. 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/5eb31694-ae47-4779-a010-14da44fc931b.json and https://artists.proofprofile.net/proofs/artist/5eb31694-ae47-4779-a010-14da44fc931b.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 0xd35732ee480c1019c49d203c5700f30134b76f45dd17603a0d3ee875cb782a1d. 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/USHM21437180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc088e21d8152799f875c25d25df4ec0d673ba99d029d509a2d16fca4b88f89e4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USHM21437181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00afdad25e37fb2d8ad61fda71c0f429fbd629a389a9391150d6ca365c46e42a. 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/USHM21437182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda56d3c5bd2aa48d3e9972bbd764d570a182edde36c969252f86a39a5d47f67a. 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/USHM21437183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7d92ebe3f4975f0cc34f874043e56bdb497774cb7501936e6069e627997636. 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/USHM21437184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bfab163e27043790004e35ccfa69ad244aeaeec26920ef1e800ef1a1c9e505. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USHM21437185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071ff7414d3b102d68ae278760cb45a777a93e40f121b9b393ac433423a01e0d. 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/USHM21437186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ed61a17c19a736ad0615284879c943d1c87f5fead85b3662a6d208e3f3e14b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USHM21437187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25c9b37b49b9d6b8fe73ee5f866549ca0c2dd3217210c4f28fad1f8ea04ba8c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USHM21437188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b1354c7cd9414b3e636bb9a871cde84886aa922abe4a76611763268ae7e6fa. 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/USHM21437189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa586247dde470a92df4504b99f413d6fe635f025f31cc193ff9163566ac9a463. 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/USHM21437190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3a3e95f1571eb1321f1f56521aabb032d4c2468248b35564bcb58f690003bf. 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/USHM21437191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6282e9c01cb26ed3b0c507c9b6b5a2d8ff00bb6601c57d6cbd7d05664d9bb22. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USHM21437192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fbb8efdc186a15c0232cd8693edaeee83f4df0fbfded818f4ec48ee7bd3c26. 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/USHM21437193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f1533086429a8936f069aecec032dbac9b899c0ba81138811823ab71f54dcf. 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/USHM21437194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ce492f8a0557093885e2602d91b39c2f0a009b70439523f372bb5f7225cd06. 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/USHM21437195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125f22be7574966c5a1c3743b7595aefd44bb1dec1ad661452ce3c9bf57b544d. 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/USHM21437196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589746b68e732c35d2ef1e7e4d507ac771788887ec372e795a604a33269a426e. 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/USHM21437197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3068da287f22c3897ccfcc8d3cb248c4e529cdefe3318bc8596f3060d6883d6a. 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/USHM21437198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d239838278f2dec3d91c04dd2b62ff2dea0deb43d7fc00e98920ea401db009. 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/USHM21437199.