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 0xd59d002eab97ebb144b8b9eaf1bf57f970b08bee6ca34833efa4da71e73df21d. 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/d46c2f13-7299-459c-b1e6-a02b759b4fe5.json and https://artists.proofprofile.net/proofs/artist/d46c2f13-7299-459c-b1e6-a02b759b4fe5.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 0xf31b0293254058643b8e2a8cb87ab31e08cd618f5bafb7c09072805d9f0f2c6e. 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/DEWW21800058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2df382ec38a4832e301780ffc19cf4f0d68cd4e437d586ee3891b04a5a4954. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/DEWW21800062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c0cd009ff8d7d11b31f0d5f28da289f6b8aaff30732e2eb970752df06b3a5c. 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/DEWW21800109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f4cf7cf608cbee64cbb39ffe154a3b7bacb22879281c2a640a8c901aa82085. 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/DEWW21800112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cf9727f9570f3d2b0730c7a510ed8e3965d667388fb77c075bd22721588d99. 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/DEWW21800118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff7546f98370a86dbc0bdafccb4e3c5fb5c4674b214f8d0a791bea076b28719. 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/DEWW21800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aff7569513232384210847ff2e12aa6cf992516a4cbae52b86e236fd7826381. 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/DEWW21800227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44eb4886f8793760ced1e48354f90457629fef91a1659c9cdcd594bb96f9c6fe. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/DEWW21800240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0473e12c872b0f0c85064669ec13d6b70d502fe47ee40312c894551fb8016f. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/DECE72106781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd443f2e1b3746f25c0499f6a666a00badd2dfaae724faffc02325b669d708074. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:04:55Z), 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/DECE72202433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f3d143e04f78346a11998c77cbdaac8ae6b53cb0af03d0464bccdfe98790d1. 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/DECE72202592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895efc82259b069b7cc6ce8fb7529812657259141120e96b2775e991a0b03a87. 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/DECE82100728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da40d4f92570404cbe2e5377f5c8bb7c400d155b06a228f06001ee2504a1a49. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEWW21800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9667711a23d8cf6172a4bb93334af5dd6c4ca8aadc2d37841e843976d231e7b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DECE72105129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff996402a8c96e5ac696c46e58304800409ab9b2c1f0542eff7f4c3864e496e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DECE82500613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf5cd7a149068cdef132259a8b2b914fe9acdd67574a4d02499c580eb2394c1. 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/DECE72501952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29903e58561d56006a25d6fc8933abb26541b32a738e95152a33c6ace4fa707. 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/DECE72501272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5a157bd0057cdda132577c3fd94cf60cc5c5d96a843ccb76a5806bbb49a8a0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEWW21800233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59289feaf4dd7ed2631b354acfc05cffd7208fd002975f5240edf9aab003381. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DECE72400133.