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 0xf72a4f7064114b428f47a40088e625b5f57ae029ae49839dc5dbb17aa98be589. 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/b6f7c959-32b6-491f-b12a-bad25acc61b0.json and https://artists.proofprofile.net/proofs/artist/b6f7c959-32b6-491f-b12a-bad25acc61b0.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 0x6f71e4c4b30aab07847cd8cde136e877367eecd8aff124b25010a9245aec111d. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/JPPO02104209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d71ab5117b3afb324892327384f9ebffbebfa3fa31d1f234486cda212cbe547. 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/JPPO02200358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6999625f7b8fbd3697d732a4bbad2ed8bc2e713974c6415366a140704189883. 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/JPPO02201270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e06b5e02d5a1e137adbe86108795b422e491ffbf5ef4dcd95de9fb0c5e0c986. 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/JPPO02201850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe70f9b33a07766942130c15ac42344422743035bc417d3dedadeb9cc6f9421. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPPO02203354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d454f0e689a9b9a5424811402973a18ea3261a58edfd650032fcebc27b5c2e. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/JPPO02205127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e719c16eedaefdf0d82f112f92ebba421623a9365d1caeadca872a491e1f7dc. 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/JPPO02300839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5b00a0ec03b9a981b3c36af36ad01b265f8a3b940ad64dcfc8639f4807a693. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/JPPO02301390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe70f9b33a07766942130c15ac42344422743035bc417d3dedadeb9cc6f9421. 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/JPPO02203354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e296ac5e8fb5dce0cea448b878b4cc009004d2704d226c2028fd5e9f6169332. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:29:35Z), 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/JPPO02302335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d99837ba8a8f16258e4b0a8166adbcc61b20872aec776c23140e32a3a0ba37. 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/JPWP02200254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d8f4dccdd5efd4546f1d9f8fb693c0ef9b2ff4f44493dd5871f8532eaad622. 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/JPPO02101052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a16ae7fdd07149a74787008eb13fe9c0ff005449837b0d2022d18963528de9. 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/JPU902304709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d8f4dccdd5efd4546f1d9f8fb693c0ef9b2ff4f44493dd5871f8532eaad622. 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/JPPO02101052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ffde9c39e0aa3f68f6ff3b6f911409bddf38c204d6fec90106f02d9d1f0d67. 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/JPU902205108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a834f4f12200360a646f2d7bae1830e5b5d8d33e67572f9b684a009b16f569. 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/JPU902105203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdefdcdf1acaa36bdaf5a589dd60c09352ea7687c0beb3d7686ec9884a88728b5. 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/JPU902104658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee8b687c31f13a4859c92b004074b21cea39bdbf6656bc0c6f6bc1fc56c714e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPU902101067.