Sasami Ashworth (born June 23, 1990), known mononymously as Sasami (stylized as SASAMI), is an American musician who records music in a variety of styles, from singer-songwriter ballads to heavy metal
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 0xef7c2944933b2498c7ce198d7529d9dc1eef603c3e39041a69003e136b1cc874. 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/32d561c7-ea2a-472d-8413-daa8897f93d9.json and https://artists.proofprofile.net/proofs/artist/32d561c7-ea2a-472d-8413-daa8897f93d9.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 0x7f2aab429c1ae6f7a6489ae5703c9c9f3c5a95faaaee3ae1001023c3dfe49d95. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBCEL1800585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1f72b113d8b3f40a30d1d03b623379f42535ee54f603147a3a2358bc7bfd46. 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/GBCEL1800586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce6efb65d3469f032fb21a5a8a9161b7f4c984f6f03009fb2d1fb6947bcdf6f. 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/GBCEL1800474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf397332fa1d6c716a12716edfd43573741a4da94b537375f5c9b62927f472955. 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/GBCEL1900386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6648a898e628051546e4b93396bb02bd5c37ea3dfc1a00db1d01877b6f7e4158. 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/GBCEL1900787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3597b55c926c25c158038a70778d1bbd2d768905bd9321413511d61da23d1e1e. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBCEL2000278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d1cca75fe91f4248e6fae995995fe7d8b8dc6a5f99174b9db9870292472bd9. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/GBCEL2100335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96de28ccfa93bab07be38e55d6c14fb78a37dca971e52f43b2e9d3617973fea2. 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/GBCEL2100432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13442717f6922473b312d86c98f89dd595c786eec79bfe162d4fcefa1c38e516. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GBCEL2100437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9a4cfbd4cfcb03c975edfa3aab474dd7e808ba392f431da7c426e55035a600. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/GBCEL2400177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcedd98db99a4c00d098166b0260e8965faa9593fdfda384a218b0ccd71caac01. 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/GBCEL2400169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9a4cfbd4cfcb03c975edfa3aab474dd7e808ba392f431da7c426e55035a600. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/GBCEL2400177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18434d0bc3dd73d95404f864568504b52ab1c9b08da7cc23f866b6117d59313d. 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/US37V2229603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253f98ea4b0ec94ff866df012d4a116858190b57b3a69e2db11799df1aa6c3cb. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/US37V2329612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80af48a71878b5e9f080b7f3030e5e7995518fcc51ba9d82e9835131553aeb62. 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/QMFD42100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6561bfef02b81898898b733a7ed79b3c79936ba3bf2ef08602160ba968b49d52. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USC4R1902908.