In ancient Greek religion and myth, Nemesis (; ), also called Rhamnousia (or Rhamnusia; Stafford, Emma J. “Nemesis, Hybris and Violence.” In La Violence dans les mondes grec et romain, 2005, 195–212.)
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 0xb32d9dd404b599b443c6a2b8c3ceb8534e07e9986d191271b23454dda3e7db5a. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b386be5d-dca2-4c99-baec-2f7650317f59.json and https://artists.proofprofile.net/proofs/artist/b386be5d-dca2-4c99-baec-2f7650317f59.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 0x16c99f900597853e89f2ff14b5a0cc015503f43a1d517c3450429c6e6d5325b3. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/FR10S2481534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aabd9c60732d72bee693abbf98f1ea4b5821e51fbc9d7a64f30187de62cfdb3. 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/FR10S2481535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132fd31f7a6cfb457a125a3ce230e22bf99c6b7157939c0d8dc5af9ff34a4307. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/FR10S2481536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ffbbad165a6e8d8fdd8daf8e4367e8502e7aa1cef48386a36c1a8e328be332. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/FR10S2481537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861232c25a9e9bcf4c96db14540597ed0cc86d2f8a5b90a52b8ab3d387bcab85. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S2481539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c13cf50d3a26f0322c295b7499daf65ea1feb6fea3ca7b399c9a653af46b877. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FR10S2481540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67ed4fb32201eb5229be4496ce29d2f805d6176e3ed0871a9a01ad9caa8c7e3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S2481541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c54d610b694565045ab3cd32abda749afd479b0459876216b0211203d3fd87. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR10S2026973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6f5f888e59eaa8d859d2b559b5d67742308f17da13a310df85103e52a42b01. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S2026975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2356ee64d835bd9c2d2a8ba508faae6f9f9affc8cfb605a772e38b6225b6ee. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FR10S2026977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8b14569885c9023a36d79c20d17539c56fa170f3c75dabcca5b946bc622dc2. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/FR10S2026979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa322477416cf22d3bde08266464d7ceaad7996ffc8c493dfef2af2f48017f3. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/FR10S2026981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec520948907675f25c919904b2f3cd91a0cb12534ed64537dd913bb0ceaf0e2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S2026983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6120b385b8c43b1a31a7bc546229cfa2e17280a9ca41215223847a456b5ec950. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S2026991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e0f29e54e80af16c1d67a37f5c4f5c1e1a05af40d96f0a3539e0920d551394. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FRX762135893.