Clocker(s) may also refer to: Clocker (train), a former Amtrak rail service Clocker (composition), a minimalist electronic music piece by Alvin Lucier conceived in 1978 Clockers (novel), a 1992 no
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 0x5b19f78f79bb0e3dae47e41c17ff213aa9a70216819ec4f69f2b8475f6b89a98. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68c03f11-b4f7-47b5-94ae-e036d62c721e.json and https://artists.proofprofile.net/proofs/artist/68c03f11-b4f7-47b5-94ae-e036d62c721e.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 0x8653a777ca0d216fca0e582f96f95f02884f8c99b5e586fbac38f837cb6ae191. 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/QZWFX2441942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94100e0fb389ad8808baba4591f3e173cb7a0a4b8f255e237bc3041502ef730. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZES52553387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1816c732eeaf52c4259609fd53f0a573d1b4611cecd5d425287f1af66f6b22. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZES52553389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa3259969d6a48e7c3017ebb4228c6f8add05ee998fd42b37e5b5a812629b2c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZES52553390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443b45af44818eda0154661c860e7b9c63e983a14a11819263de0571cb1f82b0. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QZES52553391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d53927ecdb0e3f02ee3733a5aaba9e6b3558efc760d44e724121b6537cc0d9. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QZES52553392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751a3ba47f0b7a58939c22deebabbeb363d29c02fb3c9f7f1f36db03863c3fdc. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZES52553393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a486bc44a40b30013d76fc26fc3a8a82ff5b472501367d7741e14904b9bbd2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES52553394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32741654c537ccde441fb2321c01cef7dee583756edc69f8888248b63a112ba. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QZES52553395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839c69a431ac882036eb5999d53daa6999ff03df9990e2603d68e600f2774083. 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/QZES52553396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1635eeb6aa6e3db57300836dae59310bb9d4223895c80bb86292ed0dddfde2b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHNB2509949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13949a7f0307ab2c71e199084173622b1bf595c64dedeabf7b69e37748386a05. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZK6M2553190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d074bfcbe3ff4d758f00b00117a4910dd8f9caf9cc2a01921af6453fa3727c. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZTB32562525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c07e8548b6dc630eecb93de6bcba571adae1efe3c204c827a050c86d2a563d. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZTB22500860.