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 0x2d7dc8c377b1ae4fe3cf00aa7759857b4c0c17ad5ec8e1432b76eb8b7c56d642. 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/94b742e4-0592-43ef-8869-79f030351633.json and https://artists.proofprofile.net/proofs/artist/94b742e4-0592-43ef-8869-79f030351633.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
100k Cypher (with Hotboii, 30 Deep Grimeyy, Prince Dre, Soulja Creep, YNW SmokeDaLoc)
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 0x81cf1e593ef5652d6739c7c83a7982fadaa1c15a628ccd1e06d1fe1b2760652e. 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/CA5KR2153421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d63a7351d982428c97abf472adbc751b7e3f1d697ef3fb5ebd1166f5bf8fc6. 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/USUYG1334257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb188bbae6f4f5b7c11bb6e760c1308d11b9b1cf948c7745aab21bbd687b720e8. 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/TCACA1410785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0412308320937a86cfc9eb7c8d41e9a1bf7dd7ec127a9f9fa81a2c2288f173a. 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/QZFZ52120727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d02285ecad38c1ac250901076de9da34cfc4b3c3a16581ae56ecbc82c611f0. 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/QZFZ52120738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbaaf1b600bc021fd04b61222c162bfeabb42d3168c6459c3736faebe9e108e. 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/QZNMU2063272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1eef479315525e7efbfa25ffb431dae357a3f3bbdf8803e52718077e5cb52d3. 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/QZ67M1996770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebfbf13895d3c2c3f33183fc9474e19d4b94d8d80cefd24c2b0f5053cb28dacc. 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/QZFZ52162457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03c714ca1f990500c5269e441abf8f14274c40d1d65eeeeed7f9300735b6ed5. 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/CA5KR2194967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ac774d0670b3a6f982458cedeb5cd6dbc38563ffd3e28875d2a9ffaf9ce000. 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/CA5KR2194968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874e700dc2dc071440bda9067793ea878cf7a50b7217bf082f8f3842a88eb5ce. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA5KR2194969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09336a5e89727f1ef410ffe0d5b09b80cd3645784d02f906ca275146c5e7c07. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA5KR2194970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c36a3cc21e16c58d7f378dc230731fd02f31d481b30e7553eaec9558d77399. 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/CA5KR2194971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe077310a9c4fbb76c140133863ee4cab7201bcaee29bfef068a6f193951ebc20. 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/CA5KR2194972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ed229d45ba7b979c767bcbbb0ef775ed599999174b402e67402168f91ffd5d. 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/CA5KR2194974.