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 0xcdf4d3d15fca133baae1d44e2f45459de21dcf215bbdcefd42b3b0e04b03f1b1. 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/b0152165-ce12-450a-8c19-b7e8f0cdd15e.json and https://artists.proofprofile.net/proofs/artist/b0152165-ce12-450a-8c19-b7e8f0cdd15e.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 0x9decf3e5535fe56f1cff5b9b3b6f8f81545df317b2f9db0cbfd63f34fe5f96b9. 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/FR9LX2200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31ac5489d3eb633e661bba48257ed022b4319fcbeb2112a7b152e08699b83f9. 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/FR9LX2200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9a31b0b5484e9ac9eeceafd6581764d23f22845e5eba08e182e5f34bdbef6a. 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/FR9LX2200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7747b491faaf6d3d965c61526fcca27afa258eb8a1c2ebc9c6ef6f797ba4cf5f. 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/FR9LX2200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6891e792d577de11b275547dd306d95085877391e469429e0a1673cbfa7530. 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/FR9LX2200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c727512b50fd5e5611be6aaa276885f232856393452a7e801e1ae419ddd04b5. 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/FR9LX2200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fa532ecb04e39facf9fda66d62be34488955d08cb9d3d60d3fb789242bacfa. 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/FR9LX2100230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1ba4eba5e6836ad290bf6d331046a4901d86f31113110250fc34d43f996834. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR9LX2200200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2480f76a4dcc266b5beb39da76c970c464a912bec597e671f6a213c74fd1c986. 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/FR9LX2100110.
Toucanopolitano (Chanson en toucanopolitain)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485c24f86b4e0098518fc585d0ba51f4c4ad48b8251c8aa80f906c095d50f3a7. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR9LX2200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703f8cebbf5ed3a30341edbcc179d6a6594d5da4b58858ce168ca15da325a8d7. 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/FR9LX2200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d92e6112257caa775ab33aa9a3810736658f8503a0e7452a6c9eeb80779fa4e. 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/FR9LX2100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa206ba833d3cfb15bd864e8a27cf5ca8f18bb38311ba97afddff3495f8cfce6a. 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/FR9LX2200150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c2641302228df30138007a61da3c79f5ad952edb595a42999c37c28aad0986. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/FR9LX2100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15924709ec69c9c9166153b4bc0a7602394269a029a73dfcfdf9496003e2976. 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/FR9LX2100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500ff609d97f954b7e1a10d435dda2f659752935dc9d3309a74b398a6c2e5c74. 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/FRX762393143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562ac08ba65553d7862ff0bf07cd28fde50294aae75628692efe6decec7aea9b. 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/FRX452382027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e612ad5c1448677b6b268fcb6395b625edc0fd1b2d14d7084cb78167aa6577b. 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/FR96X2336636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562ac08ba65553d7862ff0bf07cd28fde50294aae75628692efe6decec7aea9b. 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/FRX452382027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08ace7a839852ca2a7233c81c1915c87bc0c624741626b7a8905d036e66f6be. 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/FRX282347668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227637b07e4e25a2543c5fc43596b50e30bd108d301cfb80e2b9315a82ae7d83. 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/FRX202229382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc29d6e18203298d981696abdc7e2d3f1bcedcb6b334fb93a563f010511bb0d. 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/FRX452382028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d70a00ff2ecbc99945b793592c4827fe37dbce7e35b3c5e8f24079359c5f20. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:22:49Z), 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/FRX452382029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08ace7a839852ca2a7233c81c1915c87bc0c624741626b7a8905d036e66f6be. 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/FRX282347668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e612ad5c1448677b6b268fcb6395b625edc0fd1b2d14d7084cb78167aa6577b. 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/FR96X2336636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227637b07e4e25a2543c5fc43596b50e30bd108d301cfb80e2b9315a82ae7d83. 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/FRX202229382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932ae1db40686671d329562836d51c10b906c64ec3c4b71ee9b9fb0116f882b0. 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/FRX202066602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ca3d41e741c4aaa74c6b6fd751ee22e3654714c7a1cb13508b8da601f1ed9e. 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/FR96X1939165.
Kitsuné Parisien (The Antique Olive Issue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41c10ab3346693436fe93d17731beb3d1b48f31f580f1f56b91f4c329426a96. 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/FR9W11929544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5acc50d5af58747c7b70977d3a0ec00e35967156d7564455d3cb14d25409db1c. 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/FRU702000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf679716910ba00c974459b03923edd8656b7f1edbb9129b0f41752f59e0d1d40. 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/FRU702000332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e56f86ebc4e7dc191df4eb0e682817b4687285a80cbb4478f846ebe3f53b1ac. 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/FRU702000333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfcd0780771f6c652bfc6e5a209f8d66fc609d7f089d7f643ccf94e1d348a11. 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/FRU702000334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea5039dd167912b9788cde886a8bfba80f2eb39d57e466e0d34c5b82cdfdfeb. 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/FRU702000336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994318830a6045343727e06da07f0ef53ee1e026bb7b4d583bb8945f15c7613e. 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/FRU702000338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6dac28a18065a92cca0ac538f56a3abcb970729207243a19230cc9c6630c715. 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/FRU702000339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaaec51049c23cdd20a24b3960d1feef94ebc7ca2d4e82b3eae7d4a0619cd444. 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/FRU702000345.