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 0xfabde62e506abeed60e0c1222c59382c0509174135533c8aa949e1cbf72b8e35. 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/067754c9-ba6f-4778-bca8-92b493032950.json and https://artists.proofprofile.net/proofs/artist/067754c9-ba6f-4778-bca8-92b493032950.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 0xb9d1399a321a3d4996bdc3a174202fe6f54094bda21f2e437dff7cfacac445d9. 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/TCADC1765157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7608104c5cb1d5160893cfbe3143ebfc02d973d4dafa7b7965122ae7a88f660. 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/TCADC1765160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1ac4a58e8c20e4b7a4576123c81d20f1be1ecb12addb55cd48e64a28744d77. 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/TCADC1765166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73c052ad5a13028c79552e12cc5e5d96f5dea8c2c1073a09febf2f7cece0a10. 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/TCADC1765172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0856fd52990aa87757a754bf86f93bca27b670e0bbe5f26aa72f57c813b336. 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/TCADC1765173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61741fccfb26ffac8a12ce8ad01eca717591bf5e81f451f2aa9c237cb7a56ca3. 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/TCACU1650479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d80056cd7a32abf0f6edcab66e9cbee4aa4ee59e88e18299865a42cccefec4. 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/TCACU1650481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c8ff9b0602dcfdc447181b15d9d4101fe548b62ec388a68c46ebf48fd39986. 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/TCACU1650484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5ceaa0eae8f640c654e451ed0afbe2141c890968a9e715658d6fefe754f030. 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/FRX452402124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abd8ae02da143001c2808b7cacee07e8ca9819ef8ca644e71ccfd91caec8ce9. 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/AUMEV2425513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b03c409adc3e1309cfa2c4d6bfbe045663c2cfd5ab149e1fa127ca12bad7f0a. 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/AUMEV2410330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea73b7154f94321a0df43563c88c7792a5c4de02d9cb3b537bb8be2c47c6d7c5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/AUGBT2338959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b584930dfdd87451b3ae62e4309161009bc70d0ed07aa11d3d34c5429c4b2a6. 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/FR59R2368497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c56d6e8cb24ebb86637c0b4ececc2620064650f76ac96a9fb67a04eb50d896b. 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/DGA082218934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc0efa8b5f88209e3176846acade2b850a96f163874cee54d111be3b9cda0fe. 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/DGA062269967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073924355d96f9278ca885ce8b7a64d5c89e006490a419e7ce18767532eb129e. 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/DGA052214694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b327651e84e506ae00ad0f2098ad9c5687f10c935c40c0aa28c70ec9d1286c0. 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/FRX762249695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6b2115a7ea859a23b614ccfb0645805c934bb20f755c6b5e141aab9071d23c. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/FRX452217989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0380cc67c808aae8549e6177deb805a23394eb8053f0ec661d4595e0433fda. 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/FRX872159236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdeb982d0cbb4c8233f0c1b953649a0ba2116c0cca973cd875af7f191e0e339. 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/FRX762170495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682abe7882b1f50c1f77bc490a361118863c195b43699310679f088c6055ebff. 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/FRX452192499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6332387f309b4ec8aa9e0e136070e1564f352c43877188bf366eec3d284de62d. 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/FRX202119156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460fb12f31c5388edadbe71feff880d3bc81b95b7cb921055e9e56bd48318c3a. 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/FR96X2121738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4c3dbc60c7ebc00e353961ed025e3078eff9de87bb7b6c40bc2da7dc87feb3. 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/TCAFK2157681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f6ff033c2fabd3e980db4f92308af145fdaed77796da129b59657c87fe3c86. 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/TCAFG2089634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f1261ab9309941c2a678e349a4156c040bfe1bf8cf0316a917e87b7913f999. 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/TCAFF2027388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1a4ad086c77c39211df7763c54811343cd212b0215cca767208d7bf7eaf2ea. 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/TCAEZ2037435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48456e53a60b9138f19b0430a5c839eb700768fc70576cfc92a30e7a196e3fd. 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/TCAEX2045384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b892a3c422dbaef19b88915af26c4ed6b06e819d15527ebf48f3e8734b0359e. 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/TCAEC1926907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d80cd531261c860bf764441c82939ec1f5eb2531199c96dbc25239b8282b102. 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/TCADK1740046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74ea816c7d94e5559076b712b94ba9cb8cc4d1705ca312962848b488dc24a5f. 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/DGA0P2443252.