Coffee Date is a 2006 independent film written and directed by Stewart Wade and released by BrownBag Productions.Much of the information in this article comes from the film's official site and its IMD
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 0x4a44dd45528b6d00c59e2320682416046cb12581773beebc68b30e602fc989fe. 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/e5fe56c7-2b76-48f9-a347-e52d05ef6da5.json and https://artists.proofprofile.net/proofs/artist/e5fe56c7-2b76-48f9-a347-e52d05ef6da5.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 0xe5d9fb74ff6519c6fd575672da81d0c288fb7b64a063328312d16999e0d798c1. 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/QZTB72408056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcce10c6a2f29f45c593c731633e78d7a61d2c1b29021a411f988028a342c17d. 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/QZDA62418562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa420dce14131c01e3d782621cf7d7ca2ba5f9d66a89590b85094221a66ce3360. 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/QZTB72408057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6370ba077a2c7bee1fd764bfa22eaab61fcc30bf9225291a21208cb2c1f68e6. 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/QZTB72408058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec978352789468a356a7427a26680ddbcd7b0f4deb77685cc1256cf8cd6e90f. 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/QZTB72408059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e14125cce9a2ba6b1d4c77dd15e280c7bd5c25ade1865116df6d5aed5a3ae2. 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/QZTB72408060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7e37ad95a0a692fc298088dfa3a0cceccd040035b9bdd3dbe6f857e5021a96. 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/QZMER2476394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93f81afc122dfe5d05d3978fcb89fa2736e11d953adb126c99d096e1b19bdbe. 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/QZTB72408061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fe1a270a2acfc4b68bf77dd75c791479a4e1e375b8aba3052794227f2b8c00. 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/QZTB72408062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1cef50c80519d8885842d65028d6192bab9bab6d57d41f0f3aafc04ed7c00e. 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/QZTB72408063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07f40c7f6f04136743eac831f14236183972ac634a3d8eb9bf9f59096589d93. 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/QZTB72408064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b7b6e97445a42b6fb9060d39cb009b054b8214f94f610dff177ae0a76af461. 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/QZTB72408065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1dd7e24d1dc33c0489b39e167108e1c23fe5230323290e3c02b9d1c7bf03bf. 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/QZTB72408066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcede24d36dde6666e178f5c743775eccccad3a574c161e6e80a553dfaeded8b. 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/QZPLS2420254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd83383376b2101c990bba8d5964110da4090bb85d0afb37cf373e93fc1dcbb9. 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/QZTAW2466642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733a4e10554d8d53db237745718c2f69a261cc31409252944a4ab8828dc0c0c7. 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/QZTB72408067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23351223d0503696c5ac14f21ce0628291740476fb7f630c46f8f8888ea79b5c. 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/QZTB72408068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a4bf55f86270ded8bd17bc37f890c96aacb4abf03b3f812db067475c88674b. 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/QZNWV2312700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6cabe6d33dcacd59bc73c6fbdd31ab89a9725a0a71184b81d8cf7e6c6b00b6. 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/QZNWS2169164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833011de5fdd02a05f701c7c936ceb3f18ac8e323ef7ccbd2ca8e77a664e64dc. 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/QZNWV2312719.