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 0x5af4737eaece7eece8136dd6291f08bb41a7126595c3ef79e28ebfc5b1226bc7. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dea3a7f2-6da6-4e70-aea3-505817213ef0.json and https://artists.proofprofile.net/proofs/artist/dea3a7f2-6da6-4e70-aea3-505817213ef0.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 0x1e04cc63e0a0e04f301be6ab05dd46eb82bbb0be8e47c3415f58758f67692774. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZK6H2045337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d08093d25607ae2ffc3b56d7291bbefc4ba2e6b1200689057f32c495413f56. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QZK6N2015935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315a71a3e5e2ae3a383bfabb92c5ee69d3de621c5dca57874d6de17e413f97ff. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZHN62064148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466aba5c434389d1a6c296997b47b6d969494d443e74963b8d3be056643d8642. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZHN42055397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9173426e7726e4f0ae6987b9db6ad908bd2c56a479348f194c3e57b0a3a041f. 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/QZHN32002170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ccf34c9291a1a308d91d5953411e524dc22cd54117f14061c0f11282c5e1d5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZDA82006683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4e0738ea53bcd2800fc24c37ea17ec6183aff9abbf7ec70233e6a7a4f3d387. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZDA82006684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27efa487db9039f31ffcf79d24140bcc27d54b13b08bd1582da312b4c327436. 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/QZDA82006685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2d18180cb7469bf82435bc554935f35e7694267e546a982ff70377ebb07150. 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/QZDA82006686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58b66a992dd483cb14734c59fb24a6e1b59343f5df80a4a6d3d0e2e200acbbd. 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/QZDA82006687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284e9d35e5f255438e094c2244d714d682411c50ab9be16dfbcd513d49318686. 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/QZDA82006688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad6dcab5350e33cd539e38571186c63512e37f73842e5836b7d19b0397f0e70. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZDA82006689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a1a4965e379b2cff9f67ee719fc329040adf9fb891aebcfd9d7a75e8558a99. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QZDA82006690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a846d381ef994e4eefcad6b772490bd32226d16f966d0652b405c94486ac37e. 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/QZDA82006691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c504096a900fec654c76c0c8e463144706327756e943f96a11677f859bc450f. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZES52131495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f46c4e1afcf1ba31fe89f952b981fa8a53e768d13ccc86990c7dda38afc404. 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/QZDA62033574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204e81fcbf7e7fadba10fd5551f2801e7148a8e547c529af6e017c96fed471e1. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/QZDA62034203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512d215d15877552c3439cda9ab46dc80f3d461d8e825d47e3ebe5dd0465ae8e. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/QZDA52050812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6537637511a1e2a22874c86df684682d105d5e2aa9640f2b8c4b3b9e0a556af. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZFZ72099187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c65060a0c181075c4eecfc2169dd3e5b98b3a6f4f669324dfb2f80b00067ffb. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/QZDA52031996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a65b68d7fdd94cede6a7b4a496fb1c40bf570f686cb35803b7812d2831958f6. 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/QZDA82008889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf494b9dff0b2d8509c761bd8983b78f9dfe473adb4818f420ce3bd5ff6c3e285. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZDA52038859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a95d6c778d39e8fe3ea2eb2440634df182d05b377ca72d49d5c583c9885bb63. 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/QZDA42023220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd392780560ea305eb0041c2149b6d835233166c6c9ef5eda7a0d16e324eb72. 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/QZDA42000635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e42e87d6e3b009880fc734cdc5d0ec4c15c7248dcf4aa01fed81bd461f4ee27. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZES52032766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d3ed17ec6cc8e25c512f44bd48830802bda91c96e9a547869413530bf2999f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZDA82005363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1ef10a678ce6044c20633ae22007c7d323b79a64c63ef03ae19776bda23275. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QZDA52051225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650eea6a6fa6982d1c1b9ed0cdb983479d2046d9332e430872a07e3d043dc9cd. 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/QZFZ22008408.