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 0x01a2e6d42bde44216dc751d9f28e558e6cf90428fd56c91bd7f0cf460e04f63c. 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/4c4dd132-02a9-4711-8ed1-2815463e264b.json and https://artists.proofprofile.net/proofs/artist/4c4dd132-02a9-4711-8ed1-2815463e264b.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 0xbb18e8d966877896d1686b8e57422f47247b662519e41543b365b8f5870672aa. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/UKZGC2302292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62bb76b0c8a08de00d34cac9222c4f5666b3714c27a976834c100ac8217ba40a. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:13:37Z), 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/NL8MH2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3143e16b88e189e58d936982a0d3e644737c16a4a876b6ae92383e1756f609d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:35:19Z), 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/QMANG2248064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adf90be5d0bee99c932602835563d9385968d2fe89d98f2ebbf2397f959af6e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTRX2421755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89eb922c5d6b8ec6e972a897f7a8cbb997d19064db5c8c62e941aa088c1d44b6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:59:13Z), 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/US3DF2492112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2c2d6b20cf9a4e8d9b8fb52ec407436843c9ea4d85fa2cbbdbc7415d52e970. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:31:28Z), 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/US3DF2492106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aac0f84a7a547b18bd6c6bbfab96c323d8da0157005eddc19bc0370694a8e8e. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:55:56Z), 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/US3DF2492108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989db9f6fc9daee732d1594f9c4bd0b7becb37e2fd43387a98233a24c63ce74e. 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/USANG2405974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aac9ea63a23b4c835064f0af7f5176bce64ff5e4dff59c2e315144d4bd2715e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USANG2468063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740162cf54841a7553a15307830e94d421e9ce6141ff0d9230109384e0af7e8d. 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/QM3DF2421823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d92cf08360d80b144b052e7e84ab493ae01368b2412fc09cf178757897218d4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM3DF2421829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a8ba14156339eddc0e6f2ae53837b54dd0e58e11005d1aaffda6876c56d3f4. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QM3DF2421828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78aaf81b5abd903397725f127a550ab6e5e24d51865fbee371aae80fccb3007. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:42:12Z), 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/QM3DF2421830.
it's useless to grieve what could've been
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb240419a614af8e1eecaadf86da4efd0e953044d0f76d5e4d18285feba0663ee. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/GBRKQ2597427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837061f7f1a0bdbf52fbe6ad3234dd65b11d36345391b5ae433422eff39fb4eb. 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/QZTRX2421757.