A sawyer (occupation) is someone who saws wood. Places in the United States Communities Sawyer, Kansas Sawyer, Kentucky Sawyer, Michigan Sawyer, Minnesota Sawyer, Nebraska Sawyer, New York Sawyer, N
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 0xeda5dd34c6c2ddde46a2d1e525fc29a79da56943dc6c9248f7d9ccc86401d836. 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/92bd77ba-1dbf-44ec-b4cc-7021dae88910.json and https://artists.proofprofile.net/proofs/artist/92bd77ba-1dbf-44ec-b4cc-7021dae88910.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 0x27b6caea2ea3a39f8fcf0f677bafa2aa254a6801d520ef1525c35f83c073f258. 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/TCACE1565185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c961e95a781d20c31dd4102d1f5ac34f17b2ddde2ae173ac7f37bfa6a26468. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCADA1740530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6e3106b89849d55e9ef931342aba0699d710228c836b32d96f5365288b9241. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/TCACY1731319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26fe20b39c7aabff1fd5b5a7c09105cdcabba118a08932245a39eb35954019b. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:46:56Z), 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/QM24S1703936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192e67ca55397f1be40c8707cb5de1e27fe88f4fa9e115040d34278d8177d61d. 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/QZ93L2124135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f871c77ffb9e64674a20638b637da6ec1f0d0f1d8b7b28d3c9f09f5eeba2c8. 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/USDA12208902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf98aeb33a28911194b08faf955d7481709cc7f56ea57c27a5a60d5bafa465d. 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/USDA12210415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15dab53a8835ae3dccf15e72cec51643796c8dc9c4e8d01bf7da7454aa69956. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZ93L2129157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1ceb9df8cf7abd4027ad9c7c50ad125754609b04b8bba02cd112d303f53d06. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZSYP2336130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e4852d3f208d4865e9ee304ac9a2b539ec23ce2aba24c2bc9ecd458a0f22f4. 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/QZ93L1966600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a722393d2c955df68869a18515e9b11d50a7ab7eceef66be05af82cf9bf1517. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:32:08Z), 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/QZ93L2132326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3784fd611861232b439ee679b05e024088fe0ecef385654488329ec670ea4af4. 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/QM24S2303824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d07a12f2dd23655165e66fab99477f8d881ed559d2ceb9c50ac2a03619f16f. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:04:16Z), 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/QM24S2303823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89361ac22ae4e677628af4300fe19eb6f94a08cf093283742e47612861ecdcd3. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:24:32Z), 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/QM24S2303822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cb3153d3fcf6ad19949c55212b87f6e4c841c008df56c1f8bf6ea52f2b9407. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZS7J2334707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0755ee3daddbd3ab0a6aa79a7ce364813dedc9c629124602e65dbb2bb86965. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:45:58Z), 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/QZS7J2426990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e01ac0f9a34925d494897b44cfb01678330a3ca27fcf406b6816ff5a38dc45. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTLA2439225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0aa498c3960eae902d0bd005c5ae6b951a1cc40844b6f2229b49a05634dc94b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBCRL1900003.