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 0x693638e149336b16b1f022b63214b505bd644fcb3a52288a016ac83fda06b4cd. 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/99e70c6e-ae42-4d91-9610-adf0de7a84b7.json and https://artists.proofprofile.net/proofs/artist/99e70c6e-ae42-4d91-9610-adf0de7a84b7.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 0x7ada72c1e8711f829327591c7aa75ae52bf7573e007fccc6abc8aeb4fe1d7334. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USLZJ1908657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364412aa1aec7e4f556df1184be274157b5e8a121dd7dfe58b2ce1b3eee7a057. 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/GB8KE2400832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf479de2d57494586faa19716e9bb7b0491e6d94b6ca684f6ae08ddce329d2ff3. 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/GB8KE2402834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58243da4244f7b114758f27441f976078b766c9374c4dfaac05d5faaffcae6f9. 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/GB8KE2402837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5499e3eb6bd1f09bb423d89440682e297ae92febf31282ae91eda863af69c28. 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/GB8KE2402985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14b9814ce573e33a30d4948beb9d1a06e0e0e70dd9d936acd607a47e4be7369. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:33:35Z), 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/GB8KE2402852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f46faa9c33eb2cb92597bf6c6842986c9e479642eddeeebd57061778cd7d39. 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/GB8KE2402843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf570f54b8d924fa7f4b0ad2dd20984b6e3cfcac6a57e6b4829940533240cf433. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:04:01Z), 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/GB8KE2402846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6773aa689231becfc462c72966ec415082beead53e76229a6d4fd2fbb31fa825. 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/GB8KE2402848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac20823931f2aa2479690dedd593a386fa110a9aa924209f7dcd596ece627035. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/GB8KE2402994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7917884acfa8449b42576849e8d23478feb82619899bcddb40f9e5d29eebf7db. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GB8KE2514149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a344936c68aea88687d8ab7fa3951e5b81983691acab01a8f0d5cd3934783b3. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:54:45Z), 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/GB8KE2515855.
Everybody's Free (To Feel Good) - Cosmonov Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594419c7a5a8d632d79426ee7b6542595f947c380d23877972a4910e06681d32. 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/AUXN21800676.