Dan Pugach is an Israeli American composer, drummer, arranger, and bandleader. He won a Grammy Award in 2025 for Best Large Jazz Ensemble Album for Bianca Reimagined: Music for Paws and Persistence an
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 0x4d12b9a18a91ffc94754113901566f478ed05b70e6473a8f5733c64d0e7015fa. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/314a001c-5483-44a3-9def-fc1d4b5bc77c.json and https://artists.proofprofile.net/proofs/artist/314a001c-5483-44a3-9def-fc1d4b5bc77c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bianca Reimagined: Music for Paws and Persistence
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 0xdb7a24f15804d91ebd7d091c44b4f66b9223cdb4ca2a3167b67ba4107be80a87. 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/QM3JE2402472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569bd24c088bbb4d51f74fd371fcdb385da1a569a95a239a7bbf0c715b3c771d. 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/QM3JE2402471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc3181fca52aceb1c7d8219712f3504e4574238aeba03278d0ea429a96e6143. 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/QM3JE2402470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc677de4cf34bffdacc577637541efbca47d6e5753d4ba5df0db4c97dc2aa15. 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/QM3JE2402560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c37fc1a3e41957c5afa7e36feccbe67dcca14f7ee173f7a3741a670d2b57c29. 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/QM3JE2402561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ba0179d42dd4935ef301667f4d770302ab5ae9448db9587c589a212fa43059. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QM3JE2402469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2187571c08dac47cac0115988f21f1e62bb51869aae9efb4d19f57fa7abe281a. 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/QM3JE2402474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d7f1b641ea87ed1a367fbace2c0069b97d07740d0e3e2e00cf23281a59bfb3. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QM3JE2402475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649e0a0bb89243d25ecec2ff3bcc9d0d18ea95b733a00f08d6cb38bab1b07eca. 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/QM3JE2402476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c37fc1a3e41957c5afa7e36feccbe67dcca14f7ee173f7a3741a670d2b57c29. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM3JE2402561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb48d37db0ca87b96a3f4dd3e29fb2a3a936a207404170896c21c8726b405783. 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/QM3JE2001680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22a2471dc674ff5c40bb9c57f0befa5f52a4e49558c30fc4d76cfaf033bce9f. 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/QMVUS2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c98401755d27ff2c8c85c7477a63567e50ce96399aea6e31e09ba0c0d07e0a. 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/QMVUS2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb231663e6f0e3f787c0d96bc63ff4ee09996dd767861dea9bd1cab3c3dd5b06. 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/QM3JE2302412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c37eec7b98a6d270c9a0d4f7d13b3081e4b83ef7e7dafedb01d9fc15746706. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QM3JE2302415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd555fdf01f02bc58136069a98ce0593b201b7b721225d5311274e69fdfe93d7. 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/QM3JE2302416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7bd7b93bd41f8d740f73615336149c2c846d468d0a1d45e4c2ac0800d1d53df. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM3JE2302417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d0398b61134142c9af758a9b59a36c9f0096d658231e34c8aba88849b148ca. 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/QM3JE2302418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ddd210a4a92482080235cdbcfc6d7d1a9d9baf193823f8dd6fcded329765fa. 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/QM3JE2302419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088dc83cfb096a2549e0812d9c391743e0e86e730e684092c8f8cab45f81e691. 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/QM3JE2302420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad4a18c589e04a27b815f6e38ca465c998e370526910eb337cf22b0b225ed8b. 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/QM3JE1901212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2051b8f973c6210c743b46c5ebdce82b38f0d1f33eae8ddd6fd324330b5a368. 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/QM3JE2202388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cde537062a328be5c92b02b151a915d34a949b779595bb0ada0103407dd758. 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/QM3JE2202392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607c392838771175f5f01b3c8d65e3099e7d800c961fc78e03b117f15c285360. 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/QM3JE2202391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202507de5bc2b57cf19611a2e4aae6a18f421dc5b3de7654e1832530a41bf9b7. 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/QM3JE2202393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1e79302b65402b20267bb1f6e4baa7b206953e2f75d0256c22ca8e5c09d784. 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/QMKTA1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6137fb753de54add68463b17535a037e33de4d4b0b723c046e288ba04dc28a. 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/QMKTA1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3babe28dd8eb3f8d303a4ea06a10c811a82d699f8f5c06c8ba839ed0b17c51a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMKTA1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7bd7b93bd41f8d740f73615336149c2c846d468d0a1d45e4c2ac0800d1d53df. 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/QM3JE2302417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb231663e6f0e3f787c0d96bc63ff4ee09996dd767861dea9bd1cab3c3dd5b06. 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/QM3JE2302412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ad51ffd1425365bfcb1cc9960901cfc7b1542ee59c5b2d2a20f64363a44e3d. 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/QM7282496016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d0398b61134142c9af758a9b59a36c9f0096d658231e34c8aba88849b148ca. 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/QM3JE2302418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ddd210a4a92482080235cdbcfc6d7d1a9d9baf193823f8dd6fcded329765fa. 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/QM3JE2302419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088dc83cfb096a2549e0812d9c391743e0e86e730e684092c8f8cab45f81e691. 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/QM3JE2302420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c37eec7b98a6d270c9a0d4f7d13b3081e4b83ef7e7dafedb01d9fc15746706. 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/QM3JE2302415.
Travel (feat. Sonica, Thana Alexa) - Alt Take
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99a3960bc71d9196006ea7e92fb2bae812b318ae01f41d4d35781fc31715ce2. 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/QMBZ92404052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0696d51f076bc04ecf28d1ba457e7d1cfe2c23f5ab5aeb4028b13054aceea0cd. 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/QM3JE2302421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd555fdf01f02bc58136069a98ce0593b201b7b721225d5311274e69fdfe93d7. 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/QM3JE2302416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393851dca75e9765a5a4d293c621372204f6cf3ba91227d7d9728a233fbfb0f4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM3JE2302470.
Outside in Music: Live at Pinch Recording, Vol. 2