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 0x16887158ff834c2e90e12cb17f4a4e4bdf386349e5788417152d950066aa250f. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bfaae5e5-8394-44db-84c1-cb84befc8c07.json and https://artists.proofprofile.net/proofs/artist/bfaae5e5-8394-44db-84c1-cb84befc8c07.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 0x53bf02a54f732faac43870fc440653a9ffb20badf4f11ef76ec02826594576ca. 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/GBMJG2330430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef9406d994083c38e6fa79dd0a2e2d5146e6c2baa03778dc6f974395bc7459a. 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/GBMJG2330431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f636dfa849a18cd21811eb215427832e3c55124611b94a82e4b81fda6a7434. 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/GBMJG2330434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca223413dbb149c2705d7261d04f50d56ebbad8c83255eb6ef25b94179243c6. 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/GBMJG2330435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e86bfc50008d3abd1a38abc7bcae77cc280ab627e84063c4bdc56606c02ec17. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBMJG2327262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0968df5d1b594b99b06e34d56457b4ce61a99fb6185c7dbb642ed3054bebdafe. 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/GBMJG2330436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0cb66d7597e9e1062424dfd14a494be60778db5d6e326f69c52c74b237c706. 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/GBMJG2330438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9b2bf90b919da50a44d968ca722fa49c2cd0b119738f0a5ebb30df654f4989. 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/UKG3H2300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21d08bf02d28132445c7ad57fdd866287b91e14ba2c96083afc1f01f6d2e744. 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/UKG3H2300115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977894c72e7d913cf597e61f065e00db0e9be6e76319ceb7a9a225bc5093b82f. 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/UKG3H2300116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7d83bcfcfbb97da5147d2d709c1804123883841ddb46a99c98576d81ae0681. 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/UKG3H2300117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2f573ebf165890d0e2d4023286b1aa2b93c6f2b89a8e1073e15ff9483d1612. 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/UKG3H2300118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56a7986158c49f37312e0457d7f89080733b9a07bd520218af1bf78b08d09dd. 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/UKG3H2300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e40baf52c88356010d2e473f95352506b8eec9200e45d318bfe03f11395623b. 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/UKG3H2300120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61c1c26c034fb5527fdcc72a186f16e452821bb058f1a88ec5c847a8be8df32. 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/UKG3H2300121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfed56c11b03a6220d24379f84561f67595326175837fabbb5cf1cd2b4d153a8. 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/UKG3H2300122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7d83bcfcfbb97da5147d2d709c1804123883841ddb46a99c98576d81ae0681. 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/UKG3H2300117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e40baf52c88356010d2e473f95352506b8eec9200e45d318bfe03f11395623b. 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/UKG3H2300120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9b2bf90b919da50a44d968ca722fa49c2cd0b119738f0a5ebb30df654f4989. 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/UKG3H2300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc78bc41ec8653379634e8e6fbb107e0a419aa875bf2ead973810130b25368bb. 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/GBXNL2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e3b26dd901132eed239ac3d81a1f65fabe1db3da625abfb7df037960025b03. 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/GBXNL2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad4ef836029613709d9d62563e9de70e66293a5a3575e89214c5d8050174600. 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/GBXNL2100003.