1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x96e15f3c62c49fbceb87d8505896f05d8596ddefeef5c99558ad7475523cb234. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1adf073a-6ee7-4f46-b91b-c6e0e70fdc9e.json and https://artists.proofprofile.net/proofs/artist/1adf073a-6ee7-4f46-b91b-c6e0e70fdc9e.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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x08b210d498d58980de8ba34c0531ec3011c6a47f18a1051c7a67636bf84eb87e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/KRG072100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c33d0842327b374a67bd3a253f8fe16e0a4e69183519d7712e3e86bdb7c5bd. 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/KRG072100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6091aa2f7db198a28098f123555493a14e99c1fe4591f98c29f14025818b3f45. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/KRG072100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8345f3cd562327f64be7daa6f1aba10263a0f3515da18b491160adcecd8b4df. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/KRG072100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec83b366612f7d365b0ca265f0099b2b285552f7b6b324ac5ad30b99dec476a. 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/KRG072100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df651e8b8d992ae07532c463e1e3dffb9b32f9db6a360d2ddfd8ac06e66b8b9. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/KRG072100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9832847e46c0e1b35153751a7b26013258f75b35c9ff38a821f00c189c5e8f8. 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/KRG072100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b66faf4ce19542c12f31ae588f6bd0fa9457ebc8dd05b547812774e5dd4b219. 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/KRG072100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf3c00bbc87ce6d484b9135b332617beb5bc9fb3c731344f4533236b6cfe941. 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/KRG072100010.
Bronco (Feat. Bassagong, BLNK, jayho, Jaedal of LEGIT GOONS)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13567f6320d93bb74a69ebcd4bb6521a4b46701461ea5adc4053163b6adb0eb. 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/KRC712000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2191acf325c8b2fc8fdb478e8be03b67d532f0601e93b8901b28046df34e1754. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRA341519789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683ffb35f0c7820b3e4bf079d78feb5b97bce55bf5cbc156d6db09782502d13f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRG072000020.