Acme is Ancient Greek (ἀκμή; English transliteration: akmē) for "the peak", "zenith" or "prime". It may refer to: Arts and entertainment Acme (band), a Japanese rock band Acme (album), an album by
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 0xb41dda770284122073ab4766dbea1fc189d6f639f6c5eea2de628414224333bf. 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/5d1f95b3-4797-423f-b771-3d6931edc37c.json and https://artists.proofprofile.net/proofs/artist/5d1f95b3-4797-423f-b771-3d6931edc37c.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 0xe9152835a4a1d67ccd70ef1b361c5b46d49c2c1cbea8704e6be7becc29bf4f5a. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/JPF301700141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b483c7c99ac8ccb823ae31e50643e69ed6c9ea266a501a84155e92679cce81. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/JPF301700142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c167ce1901234796d417c51dde9535868b7d364150e3165f66fa16a7c3eff9. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/JPF301700143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9551e62b14fa0d4cb132a562ef6290f41121c84e1eb2e9a02e10803b4a02a114. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/JPF301900072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c39235d28d351e9785dddf2fdd4a2ffbe92c2a79c24b726eeea0cb76e2f0e1. 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/JPF301700176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243fe13b9665daa961beffff88193bbdf90d27408de827d7a049533dc51e2a43. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/JPF301700179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83402bfcdac88b442a4b3601a3722ef00fdc422c5d7080093bfe45595f9b876c. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/JPF301800217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fd95c11f4c5c37207a8d0c2fe0832a165f58dd5f25b3117e865dcc5c4ad9f7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPF301900031.
アクメ 2nd ONE-MAN TOUR [No.13] FINAL at 渋谷 club asia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3445b51e80593915c1e08acafa22e925e1a1ffe55d97490d7590ba2227f6d29b. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/JPB602090133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3427a7fbcee56dd5f4af47ea31104f890e3efa2dbf1c4b550b698a715923cd4. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/JPB602158986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3427a7fbcee56dd5f4af47ea31104f890e3efa2dbf1c4b550b698a715923cd4. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/JPB602158986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8027f7d4b185844f4e77526c60721f51b690fd25d177173be39f714572240c57. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/JPB602181121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a65d5bb8b9095b479cfe6f62950a7d8cc035f8102609d2e088bf9cf9a4efc57. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/JP92N2270727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456b2b67e04d0614856061f225dbe114557c0de249e868ac2e59a447abd1676e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JP92N2421828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43faf6f717203ce375e26fa9aaff7e4bf5d1f9ad2d037923216bd443696f081b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/JP92N2515150.