Kadant Inc. is a company that was established in 1991, as a partly privately owned subsidiary of Thermo Electron, and partly publicly traded company, and was fully spun out and renamed Kadant in 2001.
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 0x9f2db6873135af799d82f2c2be1c69ff94dad910605c5a8887be4b752fecf66b. 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/7d2d9ca8-28cf-4de5-a14d-48c1f04e6f2f.json and https://artists.proofprofile.net/proofs/artist/7d2d9ca8-28cf-4de5-a14d-48c1f04e6f2f.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 0x96f3e491981233420dbd16fd7bef2abe36a8c5f0aacef77d1aa072fe4224136c. 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/SE5Q51807569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93cce849b4eceb707b058d8cdceef1a81971371fee6bab105b9ea529f152679. 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/SE5Q51804032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfedc8388dff112c1e64f2370ebb2e4cfb3d2dc3e01eae2ef71b36496a6526d50. 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/SE5Q51828308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc825196a44e5b75aca328b1733a11c03f9e410fc854275cdfc3608b9cfe21fed. 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/SE5Q51811449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ddccd6c09d29ce17e32b5e6f174402f3563114aefbcfec900572a423ff038c. 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/SE5Q51805426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3067b4f549288a9f2a5ba60889f1d81547b6a59e330ead6adbe60871865da8. 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/SE5Q51808112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420b25cec51819f542b103568a7bca3d2c17fae75d3b85537e761f39bde6545a. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:26:58Z), 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/SE5Q51828310.
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 0x34f5c0e0fb0f496deade0bf56e02c026dee233d73254bd0cfbb59ac38015d804. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/SE5Q51819291.
Epidemic Presents: Crates (Guile Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399f8c74e22439495fd5b0cef666e0cd57376677fa1e12bea520cc9837f84efc. 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/SE5Q51807007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51d2a273a8adc2e1a3d2c748a8fba976b6ee3b5e3d1b277783eb869bce192ca. 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/SE5Q51825086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a045bf07d9128c589bd5a38bdbc6ecea08c2b8975ef166a80044ee5668d913. 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/SE5Q51813652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2878410da89e56d9a710005c4a42c663f556d87be6ea8b35039b30b9215af9fa. 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/SE5Q51802382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4557071af726d33be938eba6847fd1a309eee74286889afa2705b982554436. 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/SE5Q51817775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721233d7e2f741bcdde55bef876f468a60139f93b80b7b92b07ff7e75a2d9844. 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/SE5Q51828279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6af348d872c0fd78e98f561de54c2f1d49bf623a2b6d2f8f81a377ed11bd5b1. 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/SE5Q51822537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f019392020523833748c739c9c1a74d9fd261281e8ace632ba045f88698edf6. 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/SE5Q51812268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475e0a806d77f5540d4142c213c640b47aa6a7f4d2742b5d47f1ce5096a16f07. 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/SE5Q51813859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0814e3f740dfd2ba7c949ac41b3bfeef57eb79e899ea5ec74c1ff128bc8ad8. 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/SE5Q51801370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf537f53c33708c95663df4c214cc92c884953a6d9b18a433fbc5804599361897. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/SE5Q51815023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67616a76609bf5d97d799a30753d44de3f9a3bbc689bd43681066b26c69364b9. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/SE5Q51823103.