Megaton may refer to: A million tons Megaton TNT equivalent, explosive energy equal to 4.184 petajoules megatonne, a million tonnes, a non-SI unit accepted for use with SI Other uses Olivier Me
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 0x4606ded42dfc016809f63e0713574e6f902276eb8f339388c326df1d45a94502. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8c9024b-0058-4f4d-8ca8-4d7e9739aab8.json and https://artists.proofprofile.net/proofs/artist/e8c9024b-0058-4f4d-8ca8-4d7e9739aab8.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 0xd4c979bec5da284d60522a4334c3f143c073b88dbb903b3628970a962bcf7368. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QM6MZ1736641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fa4725b3c345d7e399124d6c4b3cd43dbf866e367d079a447c98493a0a789b. 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/QM6MZ1736642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3752bac94ca240badeefa957b6878c535b82bc544ac21978c0d0e559af0a49. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/QM6MZ1736643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156c99b7f45de7626db1c2451a0a0100416a8b5f98cafb7990f99c0ba15e0f04. 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/QM6MZ1736644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b09c4186455dcb9fcb5d76dbb2c047e669ae3cd84a92cbd43285dd5ebf599bf. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QM6MZ1736645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff0be134f189c3f04ba77a8126c3046f281e30c243600652bd3ee2351785ee7. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QM6MZ1736646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2706a6057b36b714b80c0f1f8807df87e50f40ada4dc61b4af91bcd69d5cca33. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QM6MZ1736647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209e55ff99c5006290ad268f1d69be4102811de1466d15b0f03fa8066525faa2. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QM6MZ1736648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649326b9791eb528d5e89190713a2ebcb0b9dac6c852b0d9c4528578a477ff6f. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QM6MZ1736649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c979bec5da284d60522a4334c3f143c073b88dbb903b3628970a962bcf7368. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QM6MZ1736641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fa4725b3c345d7e399124d6c4b3cd43dbf866e367d079a447c98493a0a789b. 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/QM6MZ1736642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156c99b7f45de7626db1c2451a0a0100416a8b5f98cafb7990f99c0ba15e0f04. 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/QM6MZ1736644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b09c4186455dcb9fcb5d76dbb2c047e669ae3cd84a92cbd43285dd5ebf599bf. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QM6MZ1736645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff0be134f189c3f04ba77a8126c3046f281e30c243600652bd3ee2351785ee7. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QM6MZ1736646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2706a6057b36b714b80c0f1f8807df87e50f40ada4dc61b4af91bcd69d5cca33. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QM6MZ1736647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209e55ff99c5006290ad268f1d69be4102811de1466d15b0f03fa8066525faa2. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/QM6MZ1736648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649326b9791eb528d5e89190713a2ebcb0b9dac6c852b0d9c4528578a477ff6f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM6MZ1736649.