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 0x2ac5dbc48ea12f71eeeabd96bf307c87061af45f3f89402e8898abd39f3b2fc0. 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/dd71ffe8-c735-4b2b-9740-16d5d8eb6cdd.json and https://artists.proofprofile.net/proofs/artist/dd71ffe8-c735-4b2b-9740-16d5d8eb6cdd.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 0xc9a23d1b61a6da4de70070db20c084e4cb89d20c8ac9626fbffc7bee3c63ec51. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPBV00600546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc326d16b8fddeb8b91da933fc489ddd8c2a0a48cf9d320afc2764c148d29b2a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:04:04Z), 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/JPBV00600547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32149eb7c0f9cd0ce615475064a9ea3cfbce5ed61d5f4edb10c9702bc2c96701. 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/JPBV00700269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1840559ee7ee45d06b5f8716999068d8abd0a49388b4ba84848f611005bfb70d. 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/JPBV00920460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dbf55c32a2f211574132075cfa7b829241eceec19e3a8082faa0582b4afdd6. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPBV00920242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52851112d7947779236cac64d7634504c503182a19d9f0c50e2a0becde03880. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/JPD531401002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f99581ff3ee71fcb4bed618e97a4fa58de2233e2e04ba54c98d9d8541a349ce. 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/JPD531401007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2cddbbe03a2737b54a8c61e0b5a30a918df2e316c581452be4bd8035ecba7d. 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/JPU901901062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd4cd6a5d55f35fd385d000d80aaeacf9cfb4f06a63b88b85abd7f586dd0f6b. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:51:44Z), 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/JPU901900197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae1d1ac75068d86b33c1209ae5bf3738b0f53434800181a50ccbac9edf94a92. 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/JPU902100267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd0f3872ab5ec4d1340e3083722357c07c171d9aa8ee1b7e288e8c6e55923eb. 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/JPU901902555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2e6335f48ba856dca2068a10222b26adc609006cca5e347c30be68b7d7e57e. 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/JPU902100271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e19aca56248668ac7c545afa0e3008c24cd25e990fe54e8ae0adb1f63ebac8. 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/JPU902100273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea94a49bdabd1ef6847607f9505f601938dd2d07080585b4c47053320c440c21. 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/JPU902100274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa3827880970ffbb1edc24a786f162bd80bb5d5cb22b00dc48b65e24c6f1329. 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/JPU902100275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2344b9aaf6114b5086649a8d368290df842272ea635e935eecce90cc2942a9b9. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/JPU902402969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193db09ca53687f392698dfe15b2c1e95f975faca0303a8bcf15f66f59acdbdc. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/JPU902402971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1cc0e7c9265bc0ebc28d4c78c3b052bfc099d3d2e662e39f7b9bc65d5e5ce8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPU902402972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72d6e00afcc0e72aedfae8f55d67bab662afabc1c87b9bee5568fcc92aeb025. 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/JPU902402973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f44f303a16b1c402ee907875281efe66dbf56139f3968b86a911440fe6362d. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/JPU902402975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566fcb54d267fd926c45b9174a2c35d8e93423c38e9943ca9335715e3f5d1360. 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/JPU902402976.