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 0xe2a972dfa7250221995d9ebdb63e43ebc1df12562e1c572de0528fd7d958e726. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b226510b-ff09-4c20-92d4-0951fb53d91b.json and https://artists.proofprofile.net/proofs/artist/b226510b-ff09-4c20-92d4-0951fb53d91b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Imortalidade - Hakari Jujutsu Kaisen Bachiraofc
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 0x8bc16bf8c8909aaa40d5b5a01ecd1a487159a3b8ac5b8aa3784cd435f0d905fb. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/BXIV82426629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1f2b1356aeb1fc97e39c3ba41a36aefbf4af83d0a047d4fe18ae623b3adddd. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:16:09Z), 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/BC6M22405505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98371e2a5cd331de5c9fa8c079ab7fa3fd5e81e387aac9dac1c8bc722ae93f3. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZDA62528044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30f98aebab82114ff9332f2adb4bce3ac83f1698aeb78bc5f973749de1964be. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZNWW2586390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831b4c13fd44754dc2860893a98674976699f17b54ea4f1f760d0dcb43faf0e6. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:28:21Z), 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/BC6M22521226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91472223d37fd3fc3fa58a34358aece2d1fac049b46462c8f659d6d91d43718. 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/BC6M22524927.