On the rocks is bartending terminology for a drink served over ice cubes. On the Rocks may also refer to: Literature On the Rocks: A Political Comedy, a 1932 play by George Bernard Shaw On the Roc
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 0x291c40245f9c4bcec9f296f7756512804355a5b4170bd5d5b5b9603b39669841. 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/835265b8-d23d-4bd2-ba1d-d63d3fe27c74.json and https://artists.proofprofile.net/proofs/artist/835265b8-d23d-4bd2-ba1d-d63d3fe27c74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Teenage Mutant Ninja Turtle (Bonus Track)
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 0xb34275a4c9b7a7391cf857cedd606d07a7ad43373ca03bb3de0ef9e844b65b5a. 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/USE830921521.
Voices Only 2011 College A Cappella (Volume 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079553098d27e43c6596ee0275d05929876ce0fbaaf13a4d3ac47c736a55fb4f. 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/TCAAZ1143491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b0de916b89a82ed88fd92f309a58dbe234fda5f87627bbdef3e3b6e46ec34c. 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/TCAAZ1143493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32d1a3d323f46ff104f8492ff6ace023be5d4a4f7429139ac9a5578c9e1fbe3. 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/TCAAZ1143505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9b075bc24d8904d32103b38ae1b3cf69e5b169325cdb1ada3bd4e783b7e1ab. 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/TCAAZ1143517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4150e9abfaf8dfad9d70cabc0cf9d2a972c3385fd17a08490068f7cb81a83eed. 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/TCAAZ1143522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb267f939bd1abbd25e3adf91bf5975895cdb1a12211c65c01ea936013d24caab. 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/USE830900648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c7417b00909e03c056b78fc9e5d175a71d7f009828a2242c61ad4e44edcc45. 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/USE830900654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991a4e4ab889b9e18072323f01e144fa25ccf188417cdd5acf878a9b3bd9b2ec. 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/USE830900488.
Voices Only 2010 College A Cappella (Disc 1)
Voices Only 2012 College A Cappella, Volume One
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7836d38f48c1da612bebc973e4fdf856850119fa06fcabfc247ff1c3936c8935. 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/TCABI1211368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9739aac36da3e44fd4466d2c93c7b683fe68e0d91a6ed6236c34c58ce9c04f30. 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/TCABI1211372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165b90f1d9401a7beeee3172045867547114124b1de4f36531115c0a7e5e3f17. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/TCABI1211450.
Voices Only 2013 College A Cappella, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4aaf69d2181af27c5e856d401ffc23ca8390334cd1559ece15da5178a94c14. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCABP1338520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92cac69d0e180008981ae7d444b929d0893b43906491625763826f41c3c3386. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCABP1338524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539d386626adf02daf3b871b15be20b4022d9a3e848891a6cc488bac7526eb90. 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/TCABP1338535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca715561fe46d2493529c7dfe9854efe50e255e74cd071c671370c2ec56a20e5. 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/TCABP1338569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e07f84ec7617e61c08f143db7b6be914f8345104a235324feec3e77fc6f144. 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/QZPJ32331454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9fe3ac99f9efe253d0e4fc7353b4b492a490eec41fd0fceb082af77ed42efc. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:50:54Z), 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/QZPJ32331467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5f4bdd1db8228ede8226aed90fcd32f9b73ce361031f6ef3e17d1a8250d333. 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/USE830900695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5d6eda56be9b29ad4cbb9d807cffdb4614416b1961c0899367b9c656ad44b1. 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/USE830900697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bf4b59d76ff723c153f4688107591a42c20c22215a7a371a81b55336f2d3e0. 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/USE830900707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e5a3ec13ad7094aaa7012cead5d87d321b65a09c29b65f10fc0e674be57c06. 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/QZGWX2009036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa613914314448c203469bf9804aeb5c39bd5cd86e47922054537b5713e6cac79. 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/QM56S1850031.
That Pusher Love Girl Medley: That Girl / Pusher Love Girl
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8975902ac3faa4ed338af5f5a033f12f49b26c533208f25e720a4e32ba381543. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USE830900144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea15f3454ee5c543cdcd3263f32f545590cc6979bd2bcd6a9fbd9b1f2714909. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:53:26Z), 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/USE830900147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24350539ad44a7f523b436ad48f8e5d5ac7a56b31742d4f5110b7e8da239ec20. 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/USE830900150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74934a7eef19aa9c750d43e1f893f6905f8b866b1b88874cd58669bd8cfbe33c. 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/USE830902419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe645027341dd727f8bd6e3f6dfb50d575a9c57c794c2fbfb18faf2a6dcee1c63. 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/USE830902421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ac0a359b5cd010476b47a0b69bff384ae6b3592bd72b71a71f73a2c86e9118. 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/USE830902422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea798b793d9a1f1e302f8c03d6766cce4846fe1757ac94578c8d13ca733c7a43. 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/USE830900173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8dbab7a0574a24f2e4bb42ec3134525af186309ad245ecaeefae3e9114b3238. 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/USE830900175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe669feb72a6c7d3334e85346c31a7c37933e7774758c7e01cdfb556729af5335. 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/USE830900586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d4cebdbab4ede34593cd92c35a3463620b684fd362f7d67bd68f36e3b104de. 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/USE830900589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0056c95cd3beb30c2b1200ab5006d2fbed37d42a2d02dc5bf3882ba94f3085. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USE830900591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d4891c1c83ce2b4600e7ed44ef745a990497c6d81f8aceb3e56d19106a7ca7. 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/USE830900593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99344702ea3767e828e50de812bb20169f19dd1d62964b72136a1f12c053895. 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/USE830900154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2612c860c683d3065593cea743aa61f5fe796e887afb4e3ba615dfbc8f271f. 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/USE830900158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844165d40404c42b1356bedbabdd6c62de99b4b810146ed55be02fd776b01d0f. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USE830900160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ecf8cb70e2ebe2bb21773f9c35c004b0b33afffd46f04e21cddf80cc7faf3f. 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/USE830900555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fa1ee15f93b6d92c53c4789d1fe4d781824f614d3cd19ae0ef63b9902070c1. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:13:05Z), 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/USE830900556.
2015 Harmony Incorporated Quartet Competition - Semi-Final Round - Volume 4