Clip or CLIP may refer to: Fasteners Ammunition clip, a device for storing multiple rounds together as a unit before inserting into a magazine or cylinder Binder clip, a device for holding thicker
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 0x5151efa9999cf57409ec1561813381420a287bdfcc413284623e7b2beb5eef98. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd58d2ad-718b-42c8-a512-7b3ccbcd35b1.json and https://artists.proofprofile.net/proofs/artist/bd58d2ad-718b-42c8-a512-7b3ccbcd35b1.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 0xac2e3a4e42671287ae386db960df107654691e94c8d8d733e50bec7e6ec57b56. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZFZ32238957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9164e72b5d1d0e94687b554509ac879d3a867e15194adac4b26782596dbf02bd. 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/QZFZ32238636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6815e313f927793250169ba932be4cce7bc1d56690795cc20d6af6d87ce5dd. 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/QZES92219231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fff25ad05b3e6bc6c894ed06d5983a7fc0578d727769c311960ea8daf99e61e. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZHN32264579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7b8068dad894c88f971d3cfe628cfdff631a343bb8b199c4b97ca2c4bc6d3f. 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/QZHNB2264530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f64d74ab68d94db048bf20e8ca077e207f3e3c89630fdeb6c53571a32bb6c4c. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZWFE2329026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984c06f086595ce06fedebc922c8b569e58da5074afce3fc63444fe586b791f0. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZTB92201410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81803afe1e1e3833c581f6ca25a9b164b2eebe6c4c5310ced0bd53571d4462fe. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZDA42307398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb0c646e88b348afb8b9a9ce1d4f7d0aa88ab4ad13cdbed5f6b5cbcb71d425a. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZK6Q2316656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f04d45b2591748d9736b7a55868d2f950e66ba8487fd663f0067ba6dfd88f83. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTAS2447779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806c5e2720edd026e7273f2e6acaf48d87be2f453ca38cf3114388b11585926a. 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/QZTBE2408404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478241623df8da078910b0c6b253a33c754f29dd150c1b581b8d20bb74eec2a4. 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/QZZ7N2407279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16ba4f6cfa39c5374323270e80d7a1375e02e061e3d705abb2efb46b06457e7. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/QZFZ62520950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3505577067bf3e59cc5d78741d85ef88712d3280e4995aa3015b130ef116e2. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZES72585644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65132e6479f953dab4dbc60ffbe8e98c391a36bb6e575d28d16e736b93f942a. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/QZK6K2586407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892a9ca1c2cdbdaaf6b95fe66d5fae81a214160c8dfdd1b2b86c559db865ceb4. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZPLS2541007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023c8a7559672731e9b394bd5cb5124a077a0ed091ce2bc7a1a10df18947e56b. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZZ7P2511456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08fe2a33bb56b92f623fd7d2410c0990b11ea189ef682ee63101990bca9a730. 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/QT3FH2542221.