In biology, a reflex, or reflex action, is an involuntary, unplanned sequence or action and nearly instantaneous response to a stimulus.Purves (2004). Neuroscience: Third Edition. Massachusetts, Sinau
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 0x9dcf881a9181bd106f0e2ec76716fc35422e2a09776d058336640fa0a6b4612a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d84a435-7aed-40aa-b427-ea94d3d79ac9.json and https://artists.proofprofile.net/proofs/artist/6d84a435-7aed-40aa-b427-ea94d3d79ac9.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 0x6ec351b7dad453d2a3359813ac6605d4e827013abe0ce224a457eba58f6277df. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QMFMF1438934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345ffefea180172b1edbeb795cb29c6f3e8bc6b1a61f722cb1ece0efbfaeb109. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QMFMF1438935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea097a8d515a7b9affe7f3ac635f4755a51aab39c51102f15a8996048966f11d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:17:43Z), 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/QMFMF1438937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6b1ae13363a92d4d51255b00949cef1f52c4b6e9a12443ae2bcc98053ae15e. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QMFMF1438947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f5a3dd06d9d63c74c0dc6bc45db44cb6df9bf55026773614ef46ffa734802e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QMFMF1438948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a3263e8b4cc3fdd343bf4a6147c4cba8ca8fa0c03b48cc5963705eb1864037. 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/QMFMF1438959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5479dd46002ed18a38bb517efe4f01d9b5285b0db8fb9420f2e7f4dd70fd927a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QMFMF1438969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71599060c4bd7fb39a68850649df2d4ba18646691f06da01504608a33cd46a04. 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/QMFMF1438980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d448d04a1f6020c1196e27fb04a300aed9860f46394ae384b0016220363a321. 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/QMFMF1439026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd083125d8257d7292f946a0343d5643fcb20eb985f8f860ba0983426d174a7ac. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/QMFMF1439030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bc4ca06665c8533f80d9cc30338c57cf300d0cd5d8ea3c421d7eba0345be50. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QMFMF1452285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ef549f8402458ed87eda172258118481d97d95012412ec7d09f1a8ce3f81e4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMFMF1452286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff135b921234bcad6816f858e063a2543021486d11b8ba74e6dcd8901c65115. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMFMF1452293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf9abd57311fcf290dc2d93d1f048e8b5ffef8d8584f4a54b13943eea28d169. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QMFMF1452294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ad05221ea18c129caf24157b9c543e7d7cb0c97faf6320b98abbf634cf4910. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QMFMF1438970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9faaa6ce06114001d29e49fd5e5d997314d2ae34c33119605cd2352724499530. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QMDA61581088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe6d47ae9e814dd6a583206fad6e0864a37efa9bb05bcdb0cc4a27b680442f6. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:33:53Z), 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/QM6P41864758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994ba5c49a079745aac0611d5c439770359629fe9246f8344c7fe897177a9ab1. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QMFME2034201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94629c7bbd44ccb17ec9962495354ba0241e339289b7fcdb386fec006791502. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX202329188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115431c986cf44d11a9625bc34a2552d5fbd77ff2871d59b90c03d0f79b45b7a. 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/QMFME2363021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596ae4819898a8c6b5b606784b5d28520e1ff1ac644e7480b1e74bd44c82d687. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:58:45Z), 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/QM7282411928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20bee21db6a5d94a7f10c71ca6a6a68c054d7923128a361c4411c560e69cefd1. 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/RUACR2401671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad59d9de83992dd4c007fbe21fcdab1290c49bcbf003cbab5be691a1cec17c3a. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/RUACR2401715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0cb7a3bdfbd31b0f7bb3a235a764cadb404e7927e5cb797782ce78e79c51ba. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:57:01Z), 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/RUACR2401737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad59d9de83992dd4c007fbe21fcdab1290c49bcbf003cbab5be691a1cec17c3a. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/RUACR2401715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e881295a6721e3433320e21cbb6378e8e567fda4276ebd841880dac5bbb1b1. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/RUACR2401738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939737295f938d04a17befe8ce9b1c220df5e0a5f17ebd5c8e852810213589f6. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/RUACR2401740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2583997c1eaf250679d956d695013ab2de3c6e662c3da5387f19febe60ec9dfb. 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/RUACR2401742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60ac5d3a5ff9562dfd5b8a5ceb92290d5834622f0e69cb788c2e03a5be73a6e. 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/RUACR2401743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9e4ddfa9eec3adabdce6b5c36b5e916c00a33c121e00bc29a9d3f4e8c49c1f. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/RUACR2401744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0158e320a97c1ae435e9d072ebea83ea9fff44fa99a1b2d622d02bdb71ee1d7c. 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/RUACR2401745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2528f787514e1e9cb7517258984b9f5a4199de8dadc292b67d73b7ef93e31b7d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/RUACR2302495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f1cc728643cea71b2fb0ba1c4e314f717f27392a7ec1685dd704e0b718c611. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMDA71596735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f1ce5e88995d92aed21999c60ca81ba20b580b79da20d6aaf40ae6ecbc0929. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USUM71313879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231385390c72629fee7d76a7d51c732c6b8c2ab742113a95725b024cfe51b1ae. 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/USUM71313880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301dabd16a9b2009f6b3a926e39ee8bdb1aad8a47e80576d4ad7044f18506237. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMDA71564141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdd2d7c8449249b254f32a890f9287c4222133c2b68ef06b981ce778a775eb0. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/FRX762161768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f72d802ad3053917d7d962fca55c511370c05a1c3c7821505e62ec7bae23e7a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEMI60400001.
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