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 0x19de201440946420eb6ff69a37630f232b24a608d8b5832b4112b517dceb6492. 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/b2eacfa8-f9f7-4421-be82-c050f9a92707.json and https://artists.proofprofile.net/proofs/artist/b2eacfa8-f9f7-4421-be82-c050f9a92707.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 0xca2136eff317d78d820546aef00951097ba561e47646035ece57ce36b24ef973. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/RUA1H2463605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a60cb5601d51f21d0913f99cb47db6b4d8bbfe32646d83970b58b782569cc05. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/AEA2W2415097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdecc71594623f0b8fb3acf16a114fd8ceb4edb4f7d411ba4a818430905a1321. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/IEWNY2441860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ccb003206c3e7f5cf51fdfcefac05dadccf82cd1261023049b213ee8ba072bf. 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/IEWNY2441858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1314a56f37fc396949bb01065da5b0b1e69112f6f2558c263b5174eace53ba4. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/IEWNY2441857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab766bb284860e803b62c7bbc7d83e5b1a3d865ac67450aa4445046a49eef51. 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/IEWNY2441862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11158ede9609ed885301b7ee26f60ba432afaa1bddfa3b440ab3792e3b113b67. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/IEWNY2441861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a29577f6cb140f98a92907f8bab281816a07830d5d2a22262d576869dc6f0f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/IEWNY2441863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4dae988532cf0c25bb08fea705737f4bcca3e0320510bc4470fa4cf267e72bf. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/IEWNY2441859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdecc71594623f0b8fb3acf16a114fd8ceb4edb4f7d411ba4a818430905a1321. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/IEWNY2441860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a29577f6cb140f98a92907f8bab281816a07830d5d2a22262d576869dc6f0f. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/IEWNY2441863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18d56778cbf661aaa93ac8dd7aef732615a2281aedc2b0f9f0eac2223a92804. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/IEWNY2450704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d0870f2da02c863925c7aeb58ef0d8386145c88536f9b9389d541308e20829. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/RUAGT2429133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a723fb97ec32102eb04bad4dffa1795fdb0b892311be210d8e54abab8026962. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), 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/RUAGT2429138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff3d36a806d48de2bb8e17bb7fc709257af2325ada3c6e789abb0ef44024e70. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/RUAGT2429139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f966fb848dc5b49dba0a94673e581414e646b145727089f8df678d96437a4f. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/RUAGT2429140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952c1bbc6fce85c480339dbc04dd25b408e7bc126343890b2f511e93b62622d2. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/RUAGT2439509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd1295b33e1d601b99b1b4f7825b6e986a868152c8809e34792b9a3e2d60cc0. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:39:50Z), 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/RUAGT2447277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48256490b24a68bc65462ca827fff0e495731b16a65171bda2bb765bffdb19b3. 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/RUAGT2487228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a38967ba71b1e63c5c729a4aee054f98242a34a9a95229f9b8a3ecfd3830b9. 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/RUAGT2487229.