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 0xd29b4058741254425509dbf6422b70403843f29af31ba8d0f135fc0262f9fcc2. 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/96e04be2-1455-4188-b01f-f397958caada.json and https://artists.proofprofile.net/proofs/artist/96e04be2-1455-4188-b01f-f397958caada.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 0x35060e245d6276d3d2a7ae87d4666ae262c139723c6ea4d5566f9434bff548bb. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/SE5Q52402600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1194a9fcec38ae8f136fff63069b7fe4a2a40c4752aa6ce813aef7ad20c82f36. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/SE5Q52401237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08440542ed3d02bdd5374be4a700d1d9a8ae993c39aa8bbeaaa04fd344e71f8d. Chain 2 (Bitcoin): anchored in block 957287 (2026-07-09T09:48:29Z), 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/SE5Q52400510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b39dfa479e67b55eb9133a79249cc9dd313077fd692d1d6a99bc1c064b9182. 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/SE5Q52400511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfede3f3db9be64ac23db5ee8dde9fda742f09815cac6c02b85e13f8664305569. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SE5Q52400535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab246884c83c3f2543012ce029f79e00858e8a81a0e58071429d5135dbe6da62. 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/SE5Q52303493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6115a020d09c4e0f139942740a5b3f480bdae377b73ae40a9f177b1274568d31. 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/SE5Q52400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9c2c99b2cd1ded7d4553ba32386d3c67225ce243130626e627e9f3d8582c08. 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/SE5Q52302709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec145c1b07fcc7321f14ca0942dd92689cdde600bcf9ce3e96db85133d80c36e. 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/SE5Q52303246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7917ec4cd7817cb2c928cd532f714007feb506d53bd04de8b0cf9163d0fb3e3. 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/SE5Q52302772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc788b2bc66fb4c8c37915a441a111166666298b9d500fe1d0107c8b11fc1898. 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/SE5Q52302775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831ab54803cebea0f9ea9cccff8bda6eb5c8bbc60ed631048124ddeb705e40c6. 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/SE5Q52302116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f3999a739a84cbb990c8267c3d0fd295ecd38dec5424f1d167ab3f249e4d3c. 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/SE5Q52300334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c96c65df27a0850377eb8af1f314cbbe50a266ca48615265163d2977de13ce. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SE5Q52301102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb746ee97c7c0e5694f809b252faa902072a135fe4413b2459c516c122a362bec. 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/SE5Q52301104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464c6ccf45221265f9caf57349cd6d860e82bcf5d4b6376e3a20bb4a3cb9fd90. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SE5Q52301196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a9cbd479cc5c0edaed61a07ddd7c864d1867afa08305d36a629459175a324b. 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/SE5Q52300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5b946941677954d21eaca6a42b77b39f931160c834927acb5af173ba9bdb39. 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/SE5Q52203549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6499c9ef02521fae693d30da2f8fb0a74b0589cc78ad8ed11bbc305153c7da3d. 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/SE5Q52202307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0864c1bb759ef426e2af6ea103b78576fafddc7fc6f35f9c8b1813f26c176e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/SE5Q52202306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ed41a3889018965384ca0b167ec40eb50c08e949f5b6390fc5c3a4565b6d64. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SE5Q52201898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5a756689ad5bab0de02a3becec6ba39bc0c86a60c66775724735fd1f9e2097. 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/SE5Q52201325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eabeb696314e13c7cc6de6e61499c659fdb50f00899f245042de316f9683044. 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/SE5Q52201114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd03148dfd734e7380e16737f6ea9da42f063350b3550583b37d168306137041. 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/SE5Q52201276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82198fa5a65f131f3e57a6d33703b8675f5af8f42d2a9ca2f321b4a5626c75a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SE5Q52200348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e8882268e52ff5dc988e1e5c4abdb07bb7b27b714cd73c1693aa3e41ab8f76. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/SE5Q52200355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ce606b735d210f6670cb512919e556111a95b2e65623baf11e649f0ed6c582. 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/SE5Q52200266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79921e89e32795de5165b44a28551598afbe591503e4d346ecea8de4cf801814. 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/SE5Q52104241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bdeeebcb11ae9f75b33fd9fea80aa2238f348c872e67852777e481f9644a60c. 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/SE5Q52104211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca30b921db6a5086dd6e92353e7e9e9b57460354bc8a40d441d5f8647bda19f. 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/SE5Q52104245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ce45fa931697033802c53b9d57cf6cb9566bbce8b4f63db3a418829f1a5383. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SE5Q52103326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35b0ec67ac7a89a97f0742af2e50fe9c0a2c144217d31f09636a518cb23c8f3. 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/SE5Q52103078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412c4e4d9a65995e5f1b308f21d3745fb19d1d7fef5930825a3ec99bacac2b05. 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/SE5Q52102888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ae3b516f608122746c624d0d548c23241d7ff78ea91a874a1c2afc17dbcf0e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SE5Q52500236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9169389ffdd90cc792d01bcff32dd8540e37244d156e83fb021494b0cda63866. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SE5Q52403617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d14bdf54a952cce61f56cec52da0da1a0a093838e83695ded811986ef0d355. 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/SE5Q52403340.