"Yasper" is the third episode of the American murder mystery comedy television series The Afterparty. The episode was written by Jack Dolgen and directed by series creator Christopher Miller. It was r
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 0x914211f0d139be39b1c18cfbcb5b125988bca97c97e0a61772f8c67d5680f35f. 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/91eed3f5-c742-4a5c-9ffe-2596e4d1659c.json and https://artists.proofprofile.net/proofs/artist/91eed3f5-c742-4a5c-9ffe-2596e4d1659c.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 0xee02448049dc8377f8e1b33755eb8b2dc28db87d80311343507d53b0af64b5f2. 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/GBKQU1962609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c864d31e3140281e4a7b5c5884e42ee960857bf1901119e1a09531633496f28. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBKQU1962616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79e577f20bd4221dba854245f0cd065642dda949006fdbb1e0248a6f2ebf2f9. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:25:22Z), 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/USANG2046562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284e113d6b30ae4d3ed56bd6446169c7a9d1afc30e9404ef1a89860aae00e336. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/NL1LE2102469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefd31b9d6eae3fb533ac561cb1c62a6d5ceadba6cb7284ab77dfe66df680ed4. 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/NL1LE2303446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c860ff24c9c295d1b5bec8e043e570319afac034c891a1668ac00a63b7df8b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU1916706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f820736d68f6258e7a50cfaf0ff00441c06069c5509eaa118d36c9d50d17d09. 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/GBKQU1916712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cc6b2fbcc645819f8e9b34e3f451e633afc5ac4b7802479824e2f2f0af3b54. 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/QZHNC2066008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fff6140987ea525c948583f72f4fbbf9413f2982d0b422b62e4551667c91371. 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/NL1LE2202685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea1f56bcba8061c1bd5bf4dc9cafb20be75992db3654b7795414a7e326daa02. 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/NL1LE2302870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea68538b2309cc8d53660fed4b9e8dcb7c5a8abed7926cafb694d0eb3534a61. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL1LE2102523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498d7046637dea4745f62a62a4dbc76cb12c4bb543bb42c29ef0952eb7caa5c5. 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/TCAEN1970724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95b287c5b7807cbd2f69e330f5a682ed3f563fa12995aa04dd8ad9b759ea8c5. 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/NL1LE2000751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca249dba4dbfff869f6af31adef50a802f31ea67eb606057d70af5d6c8d449d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NL1LE1900225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc783a4c6ab1d27ed749129c9ba2c53af546f5e629c4a172e796f470ba76d5393. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NL1LE1900222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181f1dc0ef0bcad4af3cc2b911102a8c07de681ba538b90bb8aaf7dd719f2f73. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NL1LE1900226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18991efb571c90deac431a901718f1f88d2c21110d24948c2f6375572933123. 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/CA5KR2004706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532c3849c4cc276ef4312da84633b39e71b8456ff5308dc849b09b2504e2e2d7. 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/TCAEZ2059178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c86738e6f211e76a60cbc63598eb2a41bbc84106f88fa2ff95ea194b494568. 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/TCAES2036548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5fe2abbbbd1ba0cd60e5a570da38155a4c495152d142154e6b4279d233b285. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NL1LE1900118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad903e8a26511f1ad8f895f6a14825ca04c6807800c834b953bcd582aeade90c. 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/USANG2072226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6bff05ca7b366d0debc26c6b4327674a1f40011513b97538491148442c68d0. 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/GBLV61811321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63060e8710ccc8fbf4bfa1638346c16c610d23613c6aeec7245ab57feeda438a. 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/GBLV61811334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb773244a9539632eff1dc45154a42e74641f0800a50bbcd4f41a9446f733623. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/NL1LE1900223.
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