is an inflected form of the Latin word , , with cognates throughout the Indo-European languages, including English many and mega (the latter a doublet via Ancient Greek ()). It appears in many names
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 0xf721b8db46cc74eda87dd16b7117694be0741dfdbbddd8d6078d06c92993f152. 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/9af46bc8-c23e-4fa0-9063-2c4e55b321b7.json and https://artists.proofprofile.net/proofs/artist/9af46bc8-c23e-4fa0-9063-2c4e55b321b7.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 0x3ee5b24b9fd6192f4037c1edf40268f06ad409c92540c36ae03093d578bf3b58. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ESA012156513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e9bd70fe2e27d3fdb661408f5d520a53d79bf4e4a2748d88b1e258a1024de6. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZQAY2236479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500a1ef069100499fc85a971db923b3d6ea5551061f0c5dd8b5f2f58614ccd2f. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZSYP2201661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88ac01b9978324e5caaec6b5c08bf9fe0c677c09ac6f107ff37ed8a74e29b84. 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/QZSYP2274858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12dcba76bd82066001cdba5ea35abb2926eca8f09801dcd59ce3ace05d8fbffa. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZS7J2299246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b45a8f2ae7772e1ee551e7f40ae68a9155d1af3cfbc3c4dd8cf0deb79004b92. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/USA2P2450945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582b2f1d2e3a4d1e4bb9bb661debffaad6064198f5ee478e29c3ffc9f361d730. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/USA2P2450939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8ae8c6a6b77b2bb58b5b88a66a6723f74e427dc570301c3bfb68ddd6840ea0. 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/USA2P2450940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b25a5059aa8669bd4ee4f4307b08f80c10921ed01455417b4c1f85a6f65e6ac. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USA2P2404507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20021faccaed02fe01b463b6f5313539ba12dba04da21f9c679e6929b90ee557. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USA2P2450941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1e645ae36bf8ef3c5ed57639a87134c88d268d6448287c3e9a6bebbbe339a4. 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/USA2P2418724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da0635e9a8c68d4de8f78f640dce1bd4497e5efbfe58f65f3325f3c0b5f4f2d. 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/USA2P2450942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d24fc410fd03db19ab45eef72b7405125e98558349482a9a462df62ada4f8d1. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/USA2P2450943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4d9f062b69021082368529a4b5b1f800c26b26c1a67c5549a44ca31f35de0b. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/USA2P2429363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4725a7504b94ce4705b264f2a0e41055b019675680c02a0f3e720173bff40244. 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/USA2P2450944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b45a8f2ae7772e1ee551e7f40ae68a9155d1af3cfbc3c4dd8cf0deb79004b92. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USA2P2450945.