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 0x084132b1973eb95f0b75accdf329cae19e0af282abbc5daed46c77d83221034f. 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/f1b31012-7fb9-454b-b8e2-abd5347bc9fb.json and https://artists.proofprofile.net/proofs/artist/f1b31012-7fb9-454b-b8e2-abd5347bc9fb.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 0x40906481f89a818cc8842414e9e17f66fc9a3b39178055bb1df99e5ba408b7ad. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FR8E41404869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc53245ac5b7a4e86d8b43af31ab0e8e2d959f4bf7168e7bf9911fc02dd02af. 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/FR8E41404870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46cd6ace5d99a04b3b56e979696cfe9375415c7057aae91984d2af94e188171. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR8E41404873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3350a5d97f34d84fe26a60950bdd58183d235bff59104d7d9e058981e62c48a. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/FR8E41404877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c9ebbdfd9a99736c01595a3a18cdd7560052b77cc03eeedef35678691fa81c. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), 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/FR8E41404878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f33d3ec2206642e4e97e3275b69dc02e2c0933410138d281288fbab40f17b69. 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/FR8E41404526.
Space Oddities: Studio Ganaro (1972-1982)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25be875433792a389f0b7f60862b2bc04c3ef58352ed1cd210f7cd028a747856. 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/FR0Q11600468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf24780518e84ae6dffe2d956443f7be229295c90a6eb7b6cc2b7a2768e4beb. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:55:37Z), 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/FR0Q11600470.