The eMac (short for education Mac) is a discontinued all-in-one Mac desktop computer that was produced and designed by Apple Computer. Released in 2002, it was originally aimed at the education market
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 0xcc6a0505abdc6e7dc58e2670075186b1b3ca416ba51148bc0922ccfe4e2feca8. 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/da217adb-d257-4c7f-800d-60700dde1b94.json and https://artists.proofprofile.net/proofs/artist/da217adb-d257-4c7f-800d-60700dde1b94.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 0x161a8c321f5d4be86f5caf4305393b3933d9c57ec27bc4fb28a8ea459300b95e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAFP2158779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b15a72dc34658971504e74b53e186f2e2e6e3edc8165819065729baf2a25e8. 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/TCAFP2158794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3bd3bd62f1133306a61e9b02e926c1a257619b9906b8d2ed9e830f958ddc56. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/TCAFP2158820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba91c7497e21a646477ff02923a8527f8537c0a3c4b0d3953df7e8ad7e1d701. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:27:41Z), 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/TCAFP2158867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276dad38577965c6eae4394dd9af1a05705cccfbb8fbfa74574afbabc5f75ded. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCAFP2158873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5787b57c5d5ba3c51a6acd77d15549c4b267abc0e2cebca72289f9fefc24ff. 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/TCAFP2158875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f67ceb0f537bff9b420b969aee6e3c54694ba57cd414e0a8507973551652f3. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T07:48:49Z), 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/TCAFP2158887.