MSI may refer to: Organizations Macedonian Scientific Institute, an institution in Sofia, Bulgaria Marketing Science Institute, a nonprofit learning institution in Cambridge, Massachusetts, US Med
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 0xa535c08f5156458f33fd2e8b60ec3825a859057eebdcbca459906b0d1a66e2bb. 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/588c38ae-e5c8-486f-973d-9bd696935569.json and https://artists.proofprofile.net/proofs/artist/588c38ae-e5c8-486f-973d-9bd696935569.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 0x272354dbc804535f1507bbd397472345efbe2eb7ccbb778b9316cebb5eaf93aa. 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/QZTAY2395544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f98e96c40d1da9e2c3bcb596e180f3905c5bffb907599ec790116f3990def9. 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/QZK6H2468016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b7bccff1773b7810f5f577bff9e4a5327b1682e6dca4f72ffeae7615e3b576. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/ZA56E2420183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ec6432dee8a3b457328c7e4075f362fa05c39e276a5987f04d915d34c2b1d6. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/ZA56E2420184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b2a3999148f7a7ac19848d0b234aa526ef30ce91507a3833a8f2e6364de7ee. 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/ZA56E2420186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e25661ce22833901e061970db3ee489730a42e1407bbe2e3c516e8f2a8fb986. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZTBC2495360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983fd8314be14b05c294c17d8b4c8aa9d9efb70e4a55d01ee11889d1445544ab. 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/ZA56E2420187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb896b1706d506385db0d34f7d22e93d5ca295a0527c450593a8dd47a296f98d. 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/ZA56E2420188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001383fd94b55d472fa0e99e3d27c693b261b6b3d1de6a4987ffe49695589393. 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/ZA56E2420194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4858a06b4b0fcf138c152e9b5c854183dec133f82fc0e2447ebbf1cf84973785. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZHNB2473945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064f2de5ef718dcaf4e31fdafba421f585addcf327e6f1e9a8e5a384b74e3d6f. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZPLS2467007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2739c34d8df367ba1d5a536818283a481ba4fd3e56cb70300c15d82036bb2b89. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZFZ22508953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b7bccff1773b7810f5f577bff9e4a5327b1682e6dca4f72ffeae7615e3b576. 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/ZA56E2420183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ec6432dee8a3b457328c7e4075f362fa05c39e276a5987f04d915d34c2b1d6. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/ZA56E2420184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b2a3999148f7a7ac19848d0b234aa526ef30ce91507a3833a8f2e6364de7ee. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/ZA56E2420186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb896b1706d506385db0d34f7d22e93d5ca295a0527c450593a8dd47a296f98d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ZA56E2420188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b89715554e4015b2ad2b356f191f73229cfb7755dfbcdefa45facf80ce5c47. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/ZA56E2420192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001383fd94b55d472fa0e99e3d27c693b261b6b3d1de6a4987ffe49695589393. 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/ZA56E2420194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f98e96c40d1da9e2c3bcb596e180f3905c5bffb907599ec790116f3990def9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6H2468016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0f61d88a687c910e4aa295adedb9dc8c0c6dacb0b17031d0ca2c3961fce6db. 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/ZBLA02500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80cdc372ed5ee0fd653329cbdf953744bbecae0d9464e77e9cf5d4837117163. 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/ZBLA02500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d804ad394fef29782db12831ee9099dfd4586d71540ae1b5aba567bb7400f7e. 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/ZBLA02500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf5f6ffafe2860cf9a77be170d56fe0d4152636124ff314163e8dbfd959b8f7. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/ZBLA02500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd486f6afd469b66fd70805568d0488df7eb33c1b0929682cc8c407a75ae035. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ZBLA02500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d04055561caed58934b83b6633fdf930827102f33aed20fecb38163b9f3c17. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/ZBLA02500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13800f3bc06a5327602d5e484c7bb52691aaf50adc6676faeeb0b968161a3b7. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/QZRP52588047.