Dr. Know may refer to: Dr. Know (band), a punk band from Oxnard, California Dr. Know (guitarist) (born 1958), stage name of guitar player Gary Miller from the band Bad Brains Dr. Know (TV series), a
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 0xa7b8f800f37f11127c267a7bf5a582ff838de292a77fa628eae19505dcede7af. 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/42deba20-ee3c-4125-995b-d4d0fffd1696.json and https://artists.proofprofile.net/proofs/artist/42deba20-ee3c-4125-995b-d4d0fffd1696.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 0x2162db2dad9ca6c1a5a0fdf4a14786ccc1488667d1d45fb8c9ec1c3902ae42d5. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/USA370523559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fe4b22b4ab6f70885455b8a2161a4c97ace29398ddd734197b23cb2c08b304. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USA370523560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c18698c80d58dac8f59f9c8082d6a818f54e874f77010aaad50ff95884a04a2. 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/USA370523563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e07a3d17dbb7aa8b60276513180aa1000900da27820472515e95309d8e0dbe. 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/USA370523566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fae31221726f69312e082278c12e00e796c975f812ab2cb9dbcad9090573ba8. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USA370523561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b910023f835ee1ff140ce3a17156ee7fde944a056757ae6e2928b9de7f52ce. 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/USA370523562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88960d5979651be61f68a18065ba6b25de38ff883fa0b182f479f069f9325a0c. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/USA370523568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5aa2ef05bbd7cd1babfeff17a320b4efb7ee5a6f87e8eddd380518429279565. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USA370523569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f352a5df2772799152eb182408e6bb511c45128a0abeb848aee14567bd6fa9f. 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/USA370523550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50653e0cc324456aaaf10137f977485132a6d14d3e3820f9def9b41617cb538. 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/USA370523546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820fcf2f57ed3d519037d6f17451b027515d2843a1c0a66aa32e60a056b8bfb3. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/USA370523549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eefa21cfff4120f75f6676b71690f7a3ef710669e7d8e1c211f8e26497eb9ed. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/USA370523552.
Habily - What Was Old Is New (Deluxe 2007 Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7308fd6a10c780232e80072e3586a0bc50d77ce882b4482bf8b450303f1d5a2a. 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/US25T9918759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23cccf128d12f15bc1b3408eab16492f6e51a1e2d62a710bc841543d7f4003b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US25T9918763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7096d1a31be93f3125c5831079668881772bbfcccd27e0c1cee9ebb08f814200. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US25T9918760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c69e6b94b87ab169737dd3b9ecceb6bf4bcec9d2d586ff9d200b0d5c2a25cd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US25T9918765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c88c62fd398d3098b7caabd299cce535deb2b297424cbabae87c4915d166cfe. 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/US25T9918768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9e55bff78688638f17af7d55f4f82c4330a860c245c2585145450b428269e2. 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/US25T9918762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9376de5243950652afdc25cdebf08d24a13e2282c1934c7d17b68c2b76eddb7f. 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/US25T9918767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa3e2927163f3dc3468490861fe27b6d46a65935cd77bc992d1407e3cd77fe6. 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/US25T9918761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4baac2721cb521f54f6d60af946d8acf4f5ab4e01f59cf94d914b1aa8b04990. 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/US25T9918764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd84e3aefa2fb6d44d40ca9d978fe16d5bea6ccd061a544c632f295774470d4. 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/US25T9918766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572d25abca4d860d75d1ede3cea350e2ad5599bfe1cf376526bcf376c9e1fc4f. 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/US25T9918770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2eb2e50f749ca78953e4be77e3a1e58b0533d43271e7fe805ff01e63960a3bf. 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/US25T9918769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f63265798b150ccfeb51f9ea416de014301a100711974d1504df09d98e77eb. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USV351477599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f20096954ea70511dc238ce9a724a3134fa61a5210c09ff1da79cfeec6faa51. 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/QZHZ52087853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bded0c7a6aa827f1e4c8a1732fdd18b2de5a4c762c7f81ecb8f923a17a9901. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USA370996458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8779f427e427c8b89c2c43d69b9b12c4b4e36026a21918ba17edf93220cbbd9. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USA370996467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66e06a0bbdfd181d71c173df36491f32edc79650f6234ca0a80e04374c9114a. 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/USA370996481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb93ba5a928053ad6fb845b7266f16cb4ae05d4ee644f31c70a533d25d83987. 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/USA560692989.