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 0xa7d94a6ce3dff6409597923f869d8024899a5a302508df7c9d2c4f44cb18d984. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2972ab93-1cd5-435d-b46d-893729efc409.json and https://artists.proofprofile.net/proofs/artist/2972ab93-1cd5-435d-b46d-893729efc409.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 0x6a8ee017f8d3eaa88b1f7e7b0f2f68515770890c78048866655a307604b074df. 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/TCJPW2324309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04459e99213bfa5bf12ef303d4569ceab13eef9c5aa5c0a71c5693cb567ef10. 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/TCJPX2389135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7d92969793657871180ce9b616ec73d2eb30bdbfb2df9857373f7fd1e98d64. 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/TCJPX2389137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a93f0ffa5d9cf29d206c68bb34f3cacdf77e4eb310938dde14422aba50c48a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCJPY2339673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279ac91fddba73c388866592f40f7798d2597b8f8620dc13f4109b8ef1a1f83b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPY2339674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe098a32e56ae38203e0365938f2b223bcb52dc0ca14db93973afeb0fc7ef142e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCJPY2339694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36fa2e0ba84efdf65d2d26a3b810232dd64cfd91b625a43097e2cc69c16bacd. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCJPY2339714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1c29522746e7e03823fd3aa3dfd89f992e44eee27c7dad15cb884dd5921aa8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCJPY2339720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc2d4330e43beef773465a51a78c86d835de027357122623586e9ab8cb2bd48. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:46:09Z), 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/TCJPY2339728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73296ef62a10f61465c06152e033de924d8cb9367925c355c60591673c5b1e78. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCJPY2339732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7138887045573097bb1c1e6489a69d860e4af68e54c540d8761e9b49cd5f205. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:08:54Z), 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/TCJPY2487909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5c7602755f61f5bd7e58fada501c4b4d93c46c8b837d8ab2b61723986e0592. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:52:40Z), 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/TCJPA2471673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4f5e13f18e8c8bb634931c2e94dffdf676ce09e0f9ae7886b57311ef379909. 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/JPWP02500276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909de4f45f79f72373928e8d406e4ddd2dba752e94e380d1ac6ce242f16959f6. 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/JPWP02500277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96b975cb6b2c85bbf17abd8deebad737337044376207112ecab845c5b3802f5. 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/JPWP02500278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc715ca7fc59d0cb7befb40b60c16505f2ebaeb1378d2f22e0b63cf52b30b4292. 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/JPWP02500279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cac3788931e94eccc419b8e7c8b641c2290eb4824299a031b438b79741a205c. 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/JPWP02500280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe624ae07364be6dff5ea68b94e3dd02d166edeb0eddddb9d405a40e112df31. 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/JPWP02500281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff51a5d5e790ce458d9a59cde73c1c6969297c5b0e35a734755d6ccc4de24ce4. 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/JPWP02500282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26d298e32f30ad76aa6b92ef171a4333bc1afd65c68b4d0e0e0c007397896c9. 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/JPWP02500283.