Pinch or pinching may refer to: Pinch (action), to grip an object or substance between two fingers. Pinch (unit), a very small amount of an ingredient, typically salt or a spice Pinch (whisky) or
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10cb686addd8161df21b9feafce44546cd814f651962f8bab561e821b49a6d2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a1d633e-7b7f-4863-842f-09ead87b0205.json and https://artists.proofprofile.net/proofs/artist/9a1d633e-7b7f-4863-842f-09ead87b0205.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fdef3d63647016c43794b4e3ba900602c0c9211bac5d4ddbe0f67c04474e7b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/UK4941500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f997c4a416923234e5ec673387673da7015303c2f05694c76c43fc56625abd1. 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/UK4941300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6307556123a32e91f7cd9495ecc9614cb7d7ddb4f497b76827ba1e0720e75432. 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/UK4942000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d088555cb73074bf71d462faa82ba13b1c31612b296a2ce00c1bdfc7b3354a. 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/UK4942000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4062146912ad3c79da8fa46ec212b927af22328ecf760765fb77c83987d5ecf. 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/UK4942000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6eb9928f0e1d50573698820b446054a729529a4254a062b02cd4fd6ff49a75e. 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/UK4942000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca0323b617de692804d2236290580849d9906fa166252a9a24015b85edbcee4. 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/UK4942000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f25400bec8131d346c59a9d38026a82a9fbcfce63777068c76e0b3133651ef7. 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/GBGXC0700222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebdc2747a04e913fb0f5fa00fa01b196bec447802084b743a2d886c9cb3cc89d. 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/GBGXC0700224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241512d5128a06e40389c87810fa666d698739a9f1a2f74bf4a39f2e8991ed7f. 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/GBGXC0700228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b140caf6f4d73acffe78799207942b4cf5a6ab313da3c04e6eb3d9b47e81c5. 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/GBGXC0700221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5cc40198cd373bd5bf11a335acab0bc3a7432fed45a334ebebebd66c0ec292. 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/GBGXC0700232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bd6a1b55bbce2a1b228a9e7c242867ad99938c3094089af49c9a180ad4da0e. 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/GBGXC0700233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adfafafb75aedae282ad1ef7a6a6342c1f89aeb89619c5c2b91f5695b366397. 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/GBGXC0700235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20501b620084a6607c0762b77934c18659f252b815a8849de6b6f1f2ea468e2e. 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/BEN582400170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e4d44aa9647a86e59ba89d0abfb72a71587adb2f9702b5cd33b0c18a4189cc. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/BEN582400171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66a08c7b8307ffdc6294aada7edbdddfd48597ffcf392c240d6753e7c3ab2ff. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BEN582300312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d088555cb73074bf71d462faa82ba13b1c31612b296a2ce00c1bdfc7b3354a. 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/UK4942000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b336e424fb8e7bdd5c7e50016d80fc79f4a98f49c8184533e2bdb60eedeb21. 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/GBLV61916417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8415a7c37010431c6b16508ed4a6c240d5cb5e1b91809eadce4d896e46522dd. 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/UK4941900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd94661aa050a76152bb7cd2a9e041e7ca33ee70bc44d0cdb47941766931c34. 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/QM7281999227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355d7aec98700fbb5940bcc2fcffe76fcfab95643e86fe09e61b639a660be98e. 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/UK4941800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca41e5fdc70f8296a58bf575f92bd7e6d0c63e8332a559643534a3fb496eeca4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBZSU0900099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6174c0db7839bcb59991ca7f4ea8a92c582e5518c0df722f5322213c0915b54. 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/GBZSU0900100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e8bd9635f04eaed6991047bc1812decdc0622a506ea334586226dad3e79b6f. 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/GBGXC1100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81dd9f6b2d04d79fda4b547bf5b8ce0675f0813bf920a243773f986435d242ab. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBGXC1000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4956c44f70e9f4678f2937a55cde559afcf580c9dddde3f4266e98ef8c5814d1. 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/GBGXC0900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608935c1e39ae6b8305bf7e530bce58533a8e83243bf40c5ac6cd678b853d6b5. 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/GBGXC0900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824abce62967c8e76fac4a31cc5eff3a51ed46e568d7d384054d3c7e8dd1982b. 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/GBGXC0900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd173e0571f498ccaf7fcb31be4b7179b872941cc21d9a4fe68db45e76059ebae. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBGXC0900015.
Attack Of The Giant Killer Robot Spiders!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37db765a9384f2afcce4055fc5683f8a013d56b025c60fb07c7ce3c0f10d890. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US78Q0910446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2687e7b7f4085d367da73c1803ec692369d494b2c5bbd358b722ffedfc336b83. 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/US78Q0910393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b4e970e2d98b5e19108eced18b88487d446cb68b13b2282b89c3f5e4b9d58f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US78Q0910394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb552f361f3750eda10985fca1d631af7567f3d53d01598cef2d5ecf2e9580f7. 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/GBRYX0900031.