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 0x401ec501f823df5540c97a1b32648e8475bf239286ec4b9e7b610aa23dbf78cc. 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/0adc723d-4148-434c-a9cb-24a29a4c5169.json and https://artists.proofprofile.net/proofs/artist/0adc723d-4148-434c-a9cb-24a29a4c5169.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 0x25dae3fe6daf4673971eabe8b34eb5e831733d867caf3cd6b983fbde70aaa533. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:00:58Z), 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/SE5W32505235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70415a9a871f0eb514b283fe488e9b85eb81db41b9621d8afbc75684c81b91d. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:19:32Z), 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/SE5W32505059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00421072595cfda2b8040af7f04912a16bd35e806c0f5a511ec2adf4b835bbdd. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/SE5W32414802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f165a12630e26f837c04af3a4a172c2232b7e473ebd7f42b4f1f5a1b58990fa. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/SE5W32414677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1e3f64b3896a1a0af80f7a4a7732de20fa3332ddd9005919093e6bae936f38. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/SE5W32405759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb764cdb2589fa7c1b9f8fe2b0e268fe72f1a8c7871207761400dd5379c9a524f. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SE5W32400551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d303a97dd59df7a68d78045eff52baffbc075706e4e20990bca7cc1d26bfe1. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SE5W32400516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd0e633b7dc8be1bc012a3eaadb8251925d3a0f5775a082dfff2b7062b5c26f. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SE5W32400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca675b2df433189410d675fb5cc49cf3e4dafcac3b5d28a73677cee3864f2b6d. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SE5W32400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cfc4e1f17c5c2e9d31e6a2b30d6f0c60d5790522512571529db966540aee07. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SE5W32309574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a827cc15d30b085deda4a6c1983f10543899385a4240e69ab27ddc022e18b13. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/SE5W32309285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9298d819409ff5b5ce490d765a94ce8967d3a44efbaeb98b7e8837c215bda6e2. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:01:01Z), 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/SE5W32307572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56d2489377c7c843f1810fabca5309f17362c45ed292cd29496fd2a9eeb2f45. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/SE5W32309070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b280ec9cd52d85f451aade6db1b661ecafcc3b25ed7f76d21317693499ef03. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SE5W32306807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914a7596f3e49fb60383cfbe1fc067ad95e35788861a59ea5331868256956e55. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:37:55Z), 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/SE5W32306808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9490acf0dab6d86c1584491abb8117147408ee8e85619e1fa474a9bc8b693d. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/SE5W32307618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515cd093460a0a3fb1d563452177973d18223dde35a139a67ca653827b95929d. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:53:50Z), 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/SE5W32306351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edbc0ed50726d322295a494e602a7e1e7a5ccc31befda6faad8d2bec63605ca. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SE5W32306335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9e1f43f4c23a1f4671f31e417a9ba6ce333be049b69cf05eda228e41481859. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE5W32307201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c098479e18dc296708ae0c5f6427204bdf7c236d1cdaf53a4f57d9f2d97dc0. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/SE5W32306114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc057b3c5771a09c4da4a8e6c3d156775edea1073e4bc78efc9019c67f9a97253. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SE5W32306788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d00e99244f8795914c2487ce94f1e695a1d34626639105785f119e5a5383c0a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE5W32306158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0148b35df1fdb304c5090a0da47e1aa3eb0688280b43cde5ea5aae8ff82fa8. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SE5W32306175.