Fumaria (fumitory or fumewort, from Latin , "smoke of the earth") is a genus of about 60 speciesMurphy, R.J. (2009)b Fumitories of Britain and Ireland. BSBI Handbook No. 12. of annual flowering pl
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 0x27d7626075f344a6c756b315432415a3c01997ab3eedb98674457919d9ac25ea. 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/11c0952f-ee56-4a56-b7c5-5da8f421c38f.json and https://artists.proofprofile.net/proofs/artist/11c0952f-ee56-4a56-b7c5-5da8f421c38f.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 0xcc5ff6839fcf43ee91797fbe56638f305a481a1e3b4de634dace189d9ff06f7d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:44:31Z), 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/FRR642300926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d2be33498c0a865b63473c1f4c177bfc5adcc64c4f70507d1e88ce9e947cb3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRR642301681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f0068cc7ccf81d42b55905b2a7ee28b12b9405b572852fc3d21755dfd784dd. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/FRR642302391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05344ff8679ac642f50a0c66d078271ca027db93acf2daed60a1591cab5a5080. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FRR642400718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbf4c953732dd8077d8b28070557daa3f79ab2bd38e5a016c94c0dd99a50009. 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/FRR642400987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197a1d1ad8812526336b2a8643b3456f923f4ae0b939c777873403e920efa2c7. 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/FRR642401101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c185519dce86e468cbe78069de45677192500d725bc943a8a0e4a7b7a447205. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FRR642401181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c486c0f6261049d4eab2fa0d5c14ceff6a2d4fa0c717463369bc0aa68533d9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRR642401606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50d9ff123d6f735a47fb78f7d96f4bf92efe41b1a5e6d9d21d5c66b0080d28f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FRR642401881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa516ca38d6372b39f9818a8198cab2981c1c0d36aca8d4c8bdec8ec264a1be9d. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FRR642500227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a401e2e76945cf3af4ee993afc83e1bcae422a63c834badd15bb67ae4a4d189. 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/FRR642500627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a401e2e76945cf3af4ee993afc83e1bcae422a63c834badd15bb67ae4a4d189. 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/FRR642500627.