Lawson may refer to: Places Australia Lawson, Australian Capital Territory, a suburb of Canberra Lawson, New South Wales, a town in the Blue Mountains Mount Lawson (Queensland) Canada Lawson, Sa
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 0x9f36cb2837c2fbc9449ad57a9d3e93c26376d81cbcd913cf55873ddebdd3f2e2. 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/f9f4c214-e44e-4bfe-ab41-06d324a5ef63.json and https://artists.proofprofile.net/proofs/artist/f9f4c214-e44e-4bfe-ab41-06d324a5ef63.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 0x903f61703df7db9c29b9ab0f232417d21b76a317260ee2af3f762b0d09b078ed. 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/USUM71103194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff2d850efd0f3fb1f8d36d7de1a1ef1ffa978dc246e02d43b2923de079f5793. 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/USUM70959638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1525d0999ce73850b3cced3ab2c1f0b53a1114845ed06eaecf92d2eaa8d57b. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:11:31Z), 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/GBCEJ2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9abe0d90a1c0f8eb3f2c91726dd146d84113234178e4ea7889b11e54f0c3ab7. 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/GBCEJ2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcaf77ed26bb63adb40d6d57b0721989705104a85edc3053a7b44706fd94cf28. 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/GBCEJ2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1525d0999ce73850b3cced3ab2c1f0b53a1114845ed06eaecf92d2eaa8d57b. 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/GBCEJ2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c3ced0153549284bd348073b2f6fcf26e2267900faf6d4eba350fd5c90517c. 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/QM4DU1600087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbe96a0b01a01a865e0d12f9a0a3a671824a6e1fe72d26a83c2e34bb94ae89d. 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/QM4DU1500061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68155ee38046550ecbb4bb213728b65ca0f838d59b977651d624031ad54d154. 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/QM4DU1500062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952eadc687f0397a8646e7cb40c1e7f87c7338a08dbf03d516a249e5ef551902. 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/QM4DU1600091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3a2675986ea3e2dd707507fc10004462057c3d412883d0474456aea0e3dfac. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM4DU1600092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14c9640414a8986d5aa31a1e3fa9fa6a1e9182666c31291e45bc4cc55e8f58a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:26:38Z), 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/GBCEJ2000199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f979c4e33d6b812439a13e6a235e17395c994d541cc3acc82c5c9f59439695. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM4DU1500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e772fb7feae15d1b526d021325b45cd78536b299a1d43af0762a00957582d25. 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/GBUM71205638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a41ff9352af3f6eb28cd80457fe79309a99bbca35093726943d6ec1b3cd7e2e. 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/USUM71309591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca32e72f8355ea19d1e6efba9f048ceb382ff9d446b54b637fa95cabd97b440. 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/GBUM71303047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2953ee108ee82ff1162fa2cb166c4ca0c8ed06284d86e593fd072e6423386e9d. 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/USCM51300762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507b4cb14ff7c98af9c17ceea5fcbfab8cc76e3b8041b70f29b740d85b75ce69. 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/USETB0814035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca32e72f8355ea19d1e6efba9f048ceb382ff9d446b54b637fa95cabd97b440. 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/GBUM71303047.