Finity is a 1999 science fiction novel by American writer John Barnes. The novel combines elements of alternate history and hard science fiction, exploring multiple realities shaped by divergent histo
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 0x110a14884db762a9b30dd0d0b6e636455027a1cb88277a09e53e71613effb6a4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef5fd815-62c9-4347-834c-d8289c4962c2.json and https://artists.proofprofile.net/proofs/artist/ef5fd815-62c9-4347-834c-d8289c4962c2.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 0x82763d96d841a48de2bd8771be7dea47f843ba9d4a1481a8a591d8ca67166002. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FR59R1931854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee9ee8efb9ca7620e7c72c6eee0d6a864ffd7275e513df5e4428e2eb54b5fc4. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/FR96X1932645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8b146bf143c0ef5b1951e96939bc69cd7b36ecbe8bb50fabb60b47f6d55b13. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:23:19Z), 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/CH7812221581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131bbd929a3004ce4840305c8ed575ddc4ed197afd02cdc154874d663693e69c. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:39:18Z), 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/DE1CZ2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519becce00ab9e28f26355f5ac05e4c3708082bffab32aab70c6cb6960e1315b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DE1CZ2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7445e08bb50d70d80fd1cbe2e448bce956f240358f0fba0a00f932ddcc9bac7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTAS2301277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0579df969da36cf55cb6aeac2b303aba143a965e3f01b73f335e3eeea56d3be1. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEZC62376681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89806684de0ca6df8305022d73808921e699fb2cbf25ee79ed99e3472e9baece. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CH7812401530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd79d1b655aa0708e41d41553b9fe5e9b5621286d576f315ecee65dddaa1c1c. 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/CH7812404035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e2f7febc8f176b34b67a854e6ff3d2eb3bf51521d68199af00a03f2c02326e. 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/CH7812415610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7bf8585898beb2ec3c1b094cca721b8058f1e5eeb8476f5bb9e5d4de7f4cc2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CH7812417416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c9b4c419d381d4b2c2d01a8df221aa97310ee66af3feb4a21cf5bbf81df16d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:08:30Z), 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/CH7812534374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfb2875ef28928f262bde02ff8e4d42325e230370fab8d9a6b3cbd30984b8c1. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:21:33Z), 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/CH7812537109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299991b40130a622b78d672c755bb50be9d30e4046abe5ab130ff93e832a3b83. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QT5M42579266.