Jefferson Friedman (born 1974) is an American composer. He has composed several orchestral pieces and television scores including Harley Quinn. Friedman was born in Swampscott, Massachusetts. He re
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 0xf8125c268842afb6c8a26d94ef7877f1342a19eea2f738e4e3d52729c9fd1a2c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99f1c64b-a94f-46b1-8f5e-a23a13112c5d.json and https://artists.proofprofile.net/proofs/artist/99f1c64b-a94f-46b1-8f5e-a23a13112c5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Harley Quinn: Season 2 (Soundtrack from the Animated Series)
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 0xc650af0612db7b8b2579559c498418ed7dc37f0a18f2332c7a5b32cf4b19684d. 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/USNLR2000751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c42e9670348e5fca51b1cfd6a6ec52c7635b839d070fbe4aa71b67d08449de2. 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/USNLR2000753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4b98de2031d83035e093f437a9eaee69c594299fc4267ce95459672800567d. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USNLR2000744.
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 0x7f5cf0e5f953b70f0d0c9d671ee10134c4d62f543eed352b7cc42d082991d9ce. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/USNLR2000746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7b71bbfd79e622aea107240b34a49b0f9e12caae686abfc5617c303cd21ec8. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USNLR2000747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419a07652f89d4cd7ba807df3bfe93f31544281c6c794fd345b5f282041d76c3. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USNLR2000748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b74a6471f8f3c96a8d72eef05b19f1ac3598aff1fd7f6cb6ad9171ce1ec05c6. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USNLR2000749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07efc27879c74beedc71bcb1d071b14b39d3a31ef60976165034c3bb8f729e56. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USNLR2000750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5297fa50fd0727edebcecd577ec2b5898440a95b1b6e79b47394fcb00047633b. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USNLR2000752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd43d4baeffe62ede1622d5e70f48d0a49dab9643005d5232f208f6065175ba1. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USNLR2000754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f72a35e7a4ac8b1c8d630b66f7e6feb0a6ac05d922fdfcfd5b1be84135db7a9. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USNLR2000757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73c60ed04edb8c84e159bdf9c5db0701f24a885f7f706d5c1eb337e1cd92664. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USNLR2000760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b59feabdfb79d39d7ac81a612baeaef85667936af030011927d259cb31f2062. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USNLR2000764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b615c5d4fa48c0d02cda1001a1b7ec3cdf546601f880c24e2af7b57be24925b. 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/USNLR2000765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57aa324554750718bf8368a5dbfe6098650da3c736cf45dabaa5809f2104a55a. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/USNLR2000767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c661dfbc696b0a6a62c745096695a43fe771e69d5f0eb91f35fd73ee4be44dd. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USNLR2000768.
Harley Quinn: Season 1 (Soundtrack from the Animated Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3c96d893fc8759d85a1a55768d4e7fdede4fb14c05130967961ba37942c6e7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USNLR2000723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e743b1761e15f3c37eb70949820c689ecafd154477be3f4cbfef2a8a64d370. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USNLR2000724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bb175ce6a61ef4dae712c4c9f4099c88e62042e8df0da303b01cabd7c99342. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USNLR2000729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc086e7bcd5cd5c175a8c266fb4af42b17c67606ec20b951bb9acbc4fefafe3f6. 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/USNLR2000731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9014327e5d90003474beda72e49159a9a0d3bcf5722861ebeb855bdb96cd275b. 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/USNLR2000732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb5247ec63ce4ff8f1637cacba58606f8833a6d9f12af4974c2fd609bb74654. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USNLR2000735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d57c99920c9f3030ecc46f7a2d7ca00f3d6f7194d695763a45c7f3bce23e470. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USNLR2000736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90620145a70700e99b2308520396899247827bfe9a2b7c28a067c37539a83d6. 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/USNLR2000737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66313358a8080eb84b5e49919de68561ec6e6424ddc3fc6934d96b6514e5207. 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/USNLR2000741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebcd492cae5abe72ebfea510c75eefbc2d7e839ca718cfb48a757ec2dc300bf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USNLR2000742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4463a85f3c8845298800d43bdc2e489feb1f85cc5ce59c6156181f170d149182. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USNLR2000725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d5abe674e5813597829545ed73a5ba75b066c37cd573b28539e40e16d7b877. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USNLR2000726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2cab7fc7ba176eb1ef17488408e693e3fb3d60ea42fae32641ed7790e42aff. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USNLR2000727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c57d84a867ae1199354c76185d54584a482b7a6a9f3e9178b42498cd1957ec0. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USNLR2000728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f08e7e54bf4db50c1444731c54ce84d232a17c29c7d380e8548ddf4585a66c. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USNLR2000730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecaa209c0458a5423e976e56ba40e2bd28eedf311494160e1ccd5b55e1948c0. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USNLR2000733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91baeef3fd722c0de89bf1584a61855fbae1c7bae2ca7d71d83f0b96f5e9e312. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USNLR2000734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9df993a81ae2fd62d7abee08c55a21ec8b7d80e6a5751fb8b5c8f13059d23d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USNLR2000738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7717f020754b0dde73ab0427f0bbe913dab71abd66616f734e4afd09401cc565. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USNLR2000739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e53da45f06e499ed5018cf03994fe7edd11561ff4524ff555e9a28aa10b2fe. Chain 2 (Bitcoin): anchored in block 960230 (2026-07-30T08:32:18Z), 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/USNLR2000740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846eb8cb735292fd0d5ac322baa99deda9324279a55cc9df30f6575ef3a3dc8c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USNLR2000743.
Why Does He Hate Her More Than He Loves Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81b45ece6a1a05fe9e4485bb512c3a0e7878b69827ee39f409149d8eee84585. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAGO2204675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a2dc1868e354f6bc147f62837c2c2033cada04d3d96af6aca8607178624f5b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAFH2094790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb028f9768cde1c93b8197fc31ac54d6afd8a60e7d409cc96477474cd65387d8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAFF2004770.