Apex may refer to: Arts and media Fictional entities Apex (comics), a teenaged super villainess in the Marvel Universe Ape-X, a super-intelligent ape in the Squadron Supreme universe Apex, a geneti
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e1459c24470f9ec3ea3ca631223889dfdcb62bedf015a2f476ab1a1da09772. 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/3e2f70a5-715b-4f27-994b-95bb4a903b59.json and https://artists.proofprofile.net/proofs/artist/3e2f70a5-715b-4f27-994b-95bb4a903b59.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf522f80b0839f758f4be832b2fcae171dcb099cfc29b797cae04ab977abd9361. 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/GBNGJ0800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9500a58970c88b291365ff3c24725a8e46aca16419a3fc1938368d5b2380abf9. 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/GBNGJ0800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb927c47c49d4c5009d2059454d0357e900c106eff76a1dea06f3e9951ad17e2. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/GBNGJ0800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9ba94fabebf0f9219d8cf30308428bb96383a78ef5e142c458713f34628e67. 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/GBNGJ0900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4aceb082367eed1da2301a15896f30c0ed18f8482ebbedb9cf79427d8bc428. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/GBA2A1000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b64874eb9aea224950f64481b0260941be5ffc4a6df13dca2a831eb5773b66. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBCJY0915411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd04bfb5966db70e551c9f90ae152a3b98e9e4952ce7ebeb5bc5cc8ee4853942. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USQY50823698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb2af00aa468df7cb4a90c81ce5bcf1431dda0764cbff3e500b9db0a66b95ca. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USQY50823702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16174d3d229fecb6d83383deebec01fbe16597d2ebb9795bd03584f952c6e2d4. 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/GBCJY0711802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b64874eb9aea224950f64481b0260941be5ffc4a6df13dca2a831eb5773b66. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBCJY0915411.