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 0xb7013cf9372a2d0e6e3eb2caffc3ab103a10bb5b5e208cc4a4f5e2727b8129a1. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fcb7e2aa-112e-4895-8d72-1ccddf4d139a.json and https://artists.proofprofile.net/proofs/artist/fcb7e2aa-112e-4895-8d72-1ccddf4d139a.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 → 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 0xaae7b60483e3ae966d1e24ae74404556bf6cf2f1e2318dd3bc23df68540e6157. 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/CA5KR2509421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b7146941afd455a34680ee1aacf4ba0b93d09b3bf655cc03573442fd7d7858. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/UKN492304474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b7146941afd455a34680ee1aacf4ba0b93d09b3bf655cc03573442fd7d7858. 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/UKN492304474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a9506a3c03d722146157ab68eb2f466dcac911d5096dc3a105c1494ca0318c. 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/UKN492304471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5525aaf8d7dcc54b5b7ed15c44896f01274d9a88e95785e2fbf12e36c9d3ce7. 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/UKN492304472.
Magic Mirror - Dawn of Apples, Hexsyre Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee0f7651857edd1aa180d93d8056975f34c632ae763b41c3b4dfdcbacea24ff. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CA5KR2508940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83650a621f4280c4f524cfe55060f28bbb89d51db54e6ab10c39208556a86415. 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/CA5KR2508943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccffbf269da4ee9b7e36b62e93fbfab20475e0b8632368a4fe68414a54aacc72. 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/CA5KR2508946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d6a5fdeeb18070fb65f5dadb21d48c61a5e1dfeeebee4f77442d3910f00381. 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/CA5KR2508948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574305ec6042196672ee5d47853797cd1311848a2cf7a26acb9fdecdc4dcfa87. 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/CA5KR2508953.
NO ONE LIKE ME - Easy Password Re-imagination
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e6864cc10656cf21da6acdf0bf94db0b11b28b92e454a835c25c9338738c9c. 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/CA5KR2508958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3992e8dc96f967f102ac15a0176700df0b1e55bd1f91d2b7010b72a92d8507a5. 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/CA5KR2508959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4dc474c509f5c98e2e2bc9447f2230da08729ae080cea52c9effafcd6ebe5f. 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/GX3HH2310288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269a34c06dda8ad049e69a91678254547976a78fd5f0f8d6415d407f27375025. 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/GX3HH2318571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3999e97e5644e58f8325d048097e88fcf81e16283fabc9e58559e5e5a3371fe0. 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/CA5KR2465391.