Endo may refer to: Endo (band), an American nu-metal band Endō, a Japanese surname Endo contractualization, a term for short-term employment in the Philippines Endo International, a company specia
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 0x8cea1ec9ce398f9f23141d6cc7691c1ecc89e955949ad05617d7d81c27add6ed. 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/65cf15c8-f49c-4fbd-a652-4648bd4759ae.json and https://artists.proofprofile.net/proofs/artist/65cf15c8-f49c-4fbd-a652-4648bd4759ae.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 0xc8af058ab316af9ea5c4f54808867af66b4611f79a5ef9b1149b5775666d4887. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/USSM10017510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f82c89e51d1bb638f1bb6313cfe46d16286b4979256ea30c25db3fd7d532e1. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USSM10017511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2fb251bba31ed3fd801f8ad3c42d3c0b66a2baf5053e328bea6d6196e2660ea. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USSM10017512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24a1b46261b723002cae860b4a6c52af0971cf6e4333e6f1f3901c3f80cbd3e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USSM10017514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67516b8bce083c2e538b84f67b0aee2e165f28190e1d411b3aa80faceb954487. 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/USSM10017285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf8c409269c8a8ae0074006652573cad679b9b896b8858e00b5fd884f7a933d. 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/USSM10300816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa623eff5ebda7dcd670f9187507b6c3e07d3cd3a4a7e2d9ba4b18daa68b63c7c. 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/USSM10300817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cef739c2e1e8d0c8e02d31a59007110a5d7c94e38f10b61d0383e279d8ac91a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USSM10300818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21e18e9b1cac112c20fed0cc8067fb51587f0fccf405597d5875684abd9369b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USSM10300822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbceb3001a13a8d9a1f4be8c4cb693828d2bfda82f90d57a452c2ad2eb49677. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USLR50000472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a3f47ddfcf91043d516262a0034e48a719b2d940fa6af777ead4a36d003926. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USSD11600194.