University of Washington Husky Marching Band
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 0x0570a2df763104802df414934237e0788bfd2e5bde71c3e03068dcfb9af67c78. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85b64152-a947-4e18-ac54-8a449dd7bcb1.json and https://artists.proofprofile.net/proofs/artist/85b64152-a947-4e18-ac54-8a449dd7bcb1.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 0xe6c1d9d595f24780251e3ef333a71bb9193f7fcefc4efe9d09b41d18ccf60ccc. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QMZ621500539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01403e57bdc7585294a2d8432999fb801ff7a55ccdf7643107870191f6c464a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QMZ621500540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771a4a89f66af0932ac344c620d4e546b6265e965bafe1c234105eb9809c6e24. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QMZ621500493.
University of Washington Husky Marching Band - Let's Groove
Happy Holidays from the Husky Marching Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e9e8a2666fe2aefa639bcc860f996724cb1fda3acb80a7ca6a1a4c2caf43d7. 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/USA561307961.
University of Washington Husky Marching Band Album - Celebration
University of Washington Husky Marching Band - Tequila!
Happy Holidays from the Husky Marching Band!
Ladies and Gentlemen - here is: The Husky Marching Band!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b6b9a7e3906eb0f1669fcac4c21c205b1783a330ac845dd2d68ec7cf242cbd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMZ621109487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d5d7e7cfdd7f5cc6a42ecad9ba07133ac4c92a171f466ad1a4001ce5a19107. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QMZ621109488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21bd0590e72cd846bc4c672bf94d3bef81b6e9f8ffd6a3c825e5cba804fae29. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QMZ621109492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d56db5c23c22cb0f2f18752dedda3ed6b0fc1e67a8d2fe46883ee7235f68c52. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMZ621109503.
Gameday Faves: Washington Huskies Classics
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486c5dea3d775e09862522a25c421666e3e17b64514b711ff314309c5013963a. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QMZ621500495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e4f4a4363da0ef98e3c47d5d00831bd973ecd683e033a33cf6480f1c6cba68. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QMZ621500502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4df7f8c3eb019c5865a628b600e21fd22fe68ab091bea32928da5f679ae9bcb. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QMZ621500512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce22db9719d4612600390f0ae1d0e801a5babdc71f99aea828bea2da83de86bf. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMZ621500514.