Bent Knee is an American art rock band formed in Boston, Massachusetts, in 2009. The band performs in multiple genres and draws from multiple influences, including pop, industrial rock, progressive ro
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 0xc669c6d0a45dace3d44e56a7b1cf0b2bc016347c2b7dda8569e96f2222ff6d4d. 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/c8680f19-6afa-4de4-80b1-68b49ea47bac.json and https://artists.proofprofile.net/proofs/artist/c8680f19-6afa-4de4-80b1-68b49ea47bac.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 0x3e076ec4e42e46c84949b65c5720434da0e4d43102c2d0119bc32ec8575be395. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:07:03Z), 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/USHM21491625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae56ba322052581c41df8b7d2fcb2183762c6879f4fee8e178bcf2dc0eab2ee. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/USHM21491626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5437976955e488be81a9e262dc9233cdb4ae5981ac3a1d9654860a5b7b0c77f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USHM21491627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e8862adda1ffd9b3bd82d438ebec6f5522f25437dc637599a63b9b0781e978. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USHM21491628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb840d63fa8ffe193a70c2909c5e5302ab67fbc96035be27734b7aa49af241daa. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:02:35Z), 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/USHM21491629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988e855fdc1c64660667cfea03ab0e9c4e4ce11e24f63c8b7e52af7dded0e6da. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:58:15Z), 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/USHM21491630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73504f890c57f92cbe2958a71e72f53e18d28b21c2b11f165142f2a3082d058. 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/USHM21491631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebcfebdda1acfc3caedda38584f518ff71bfd7a910ebe9d1dd8d625a2c9fefec. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM21491632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c01baea0d83610952072085e92df8764087c0a2640cd9c918dd95e581fe751. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:49:37Z), 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/USHM21491633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafcfb9804733a909df9d0778ab5d640f2ece89cd9fbdfc09a9c7b9b2df83e1ab. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USHM21491635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0323bdf5f4a1fa6aa65937559747d38ff0801c24273869144397ac4274e9696. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USHM21491636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf423ab4e9cb39f575fbe78d7372fa3899e9682c9a07f16e486ef29d757e4142a. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:22:48Z), 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/QZNWP2150073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872be971ef51282fc76251f3b8157eb344f462addf0024f4f22fc23ae15b40c6. 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/QZNWP2150074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce39717a126d1f119384330a21f1c6b59698b8e7aef7ebf795121b94f8ac74d9. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:34:23Z), 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/QZNWP2150075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321368d4353dd36660454d9fd5fee8dc148e6add32abf9e3428567aff567e5ee. 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/GBDHC1778904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe21cf337a802e8dfd910d081e6c8f923f76b61a70bee8000b38a8a7eaf8700c. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GBDHC1778907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e3180e82379dba60ab013782c6cc0576d56f74b8fa4af556381645432d6c12. 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/GBDHC1778909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15f7df0e939facfe07724b53dc7df57c443d177db2b8bacc289cdb7e8c1e994. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/GBDHC1778913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291e409cf636c448c42b70eba556f675515ff7a94f83c4dd66d81a2a441a353a. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/GBDHC1909704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643b2799b7834fbafaa36d1f9808afeb592e7e76a0c5f86672f150ab244694ce. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:09:08Z), 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/GBDHC1909705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fc67d35c61c73617bcd7a148058469cb437d8048f7618984f1c8719699037c. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:16:00Z), 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/GBDHC1909706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7e6376f2664afdd2749b26a1f252f4939838ac33db6b01e6090fd3e5e79ca4. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/GBDHC1909707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5277d0c0be29c0b4e666ebb48ce9b4c8c4870ff26310f8e67366d90d5468e974. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBDHC1909711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995602d49a9bea070a7d42c29f3986fd28f245f4af58f8fccd8d5bbd84fc1134. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZNWP2350443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc089050c1f7577cd42062d6e8a43e4e7e483b214fca3e46b82223ecc4d5c58. 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/USF283140001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4501b0cccd2c85fb3a72b00cd4697e2cd9d14f4173903a96a7aa7c2225d77d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USF283140002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e066b1f615d2dae171340bd09795b34d4419e4cb811e2a3af2022c409875da. 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/USF283140003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e0ff75f841a200d3e091b0388489ae8c2362d94b65985ec50d62fdbd682a12. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/USF283140004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad132b520a31ddac154a051e1115b3f002f1be0e4783b050175e21e46eebb53c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USF283140005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56108f51d40988cc0edadd0dc9b181df722a58b3c4ac68f69c7f22abac08775f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USF283140006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd009f172a4f8e6a6fb0a09f37c58f8bb2d10436ebea66c1097af7f095a8bb62. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:07:08Z), 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/USF283140007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9417c3ca347fe80b8efda0612c5192519903202cd397237560eb0911bbb6fd80. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USF283140008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fa8515b6929b32c2aeb9be127c89f9bff277a75ff9dc5640a0cf533e3dff5c. 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/USF283140009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa122a982b32b5c61d548676e27748530f7ef0498cd2c47be5e0d05384650222d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USF283140010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f666dee6379acf8678c2ab8168dcf2183b3c6256c79f2695b64194ea75c280. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USF283140011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cd50d00b24f5b74523a79eef0e8b3a7e5103c4b22585a7b5f1052b15173816. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:59:54Z), 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/USF283140012.