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 0xc7f94162e42628bd8932623906c027f847561cc24729ead62c170014ed94eb12. 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/93121d2b-6a74-45aa-8420-df9d1dc3bd7f.json and https://artists.proofprofile.net/proofs/artist/93121d2b-6a74-45aa-8420-df9d1dc3bd7f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Way of the Ghost (From "The Ghost of Tsushima")
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 0x729ea5674eaaa28f7de88c002a544655277eaac5b51c598a709af48274711353. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZGWW2140972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f842cd0fc5981f717d097d522108342e82dc0fd2742d4facbdbf89e296c8bab. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/QZGWX2005865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaff23a9293a4c565b50acc56a2b5fb80bdf87250b774b607c5d5ce3092dad85. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:27:45Z), 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/QZGWX2005866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dd5fcec8c60e6cbdb33d857197b5f301b322a3e74404ab8db65ff1691b93f0. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:07:14Z), 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/QZGWX2055544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf33a4701683f54f01e1cc9d3937f5084d173ba813caf50c4daa16002e892132. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZPJ32129453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36a27f9920d5e73deda57f01fef2dd63fa593b0fcc1ee28f8d4a436f6c0fc8b. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/AUMEV2284684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf1a6769d622d83a71821974d090c3cf5a410d807157d2f4973cbefdbbbb73c. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZGWW2038512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe795e96b78b123e920cd012fcdc8ff98395cf008b5466cf2714cf41696bfeebd. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:39:15Z), 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/QZGWW2118673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecc56c6e4ebb73ddcaa6f0604468915e9159afd83cf1ff03557b2281f99cceb. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZGWW2039969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f88f2087e0ecf38a7d88582bb7f15a1e9b05eab2f61cb00fd5924cbe5d074b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZGWW2106263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f451c11a6ba98952b811f40c6d1d394e88a2211757f074948100e45b4813fea. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZGWW2039968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03642587feddb765fdb55f0d73784c98eefdc1c5877531048ab37000f01af48. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZGWX2039988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f0290bb987da9ee2d24519169cc7a5d1254176c3266dfac29c186040dc8d8b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZGWX2073810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd50de448aafb4e15c18f729c671950b18610c4fbaa18ae492ac8dedb6276679. 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/QZGWX2073811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c0f4cb936e1fc3a48f0fc6dea499a695cc091d7c0e8185d1be347315d53818. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:26:16Z), 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/QZPJ32129451.
Dream Journey to the Edge of the Universe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d59fcd21906f16863df2c0ade98d57066ebeb12d736f05db0878f0e441e213. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/AUGBT2325512.