Danny Sanchez is an American soccer coach and retired player who is the head coach of the University of Colorado women's soccer team. Player Sanchez played for Arcadia Scottsdale United Soccer Club (
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 0x150003705c614d789ec5eecb87ba3ae984cc905bcb8dfed6b18d5bbd2ca595b6. 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/edb8316b-3666-4eeb-aa23-baedb0fc04b9.json and https://artists.proofprofile.net/proofs/artist/edb8316b-3666-4eeb-aa23-baedb0fc04b9.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 0x476913c539f72367aba20a16890a9c10136ae81986ce23f1e1536fbd51868b9c. 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/QZHN71902435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776f970769452d0891b8880253e7fb6f2e8cec2a9c15bb525bf959d455443a4c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHN71902438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24da5b9f46848bbe8b1118e6db087b3dabfd372d03792ee50d417aa62a2c0ed3. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/QZHN71902439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7489b8b24923e07deda35fd3a8d6c3373f697693219c0748d64a928b25652ce5. 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/QZHN71902440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad72f3a87937085573ee1358070010344e95dcaccc179756ef150e96c8a25f8f. 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/QZFZ62000824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5d552dd2e6c304dde05861541f20446e9ab8d5ca2bc8bd02689622a4905b02. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZK6M2015752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc0ff9ac5b079eab7f83f2ddbc343847e74cdf5f3c9708f6fe2c66751670560. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZFYY2102007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70e03b13d4851dfbb0887762dcdb6ae0c392acbd2f4e4a10d4135afc6fde7a2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZS672158918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af9807fdea6355c3695648b83a183f9262fa9f79b04d7b1e92ce883abc24bf6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZK6Q2291528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65791019d903c8969373bbe3fdee435f43687f779b8a790eb9102e09f958cdf1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FRX762384929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71fef9777e07fe44fa39349b958d263c0d5141cbc52c0a9aa5bd7234b3f0197c. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DGA092324726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47460c062e34c2b5951af3b71c312bf89b144c342823870ba21abc06616c83ce. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DGA0P2306204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa50111185be2e9c54de312a535d9c0ee5d85c9f26843f953c835b147fbce9d. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/DGA062330516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5db25b102c9975f055d17f1bc701a5bb6d91e99ff6e7ca05be3566d61fb9445. 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/FR59R2499599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d5ecf054088219f9d2c7236f04b7faf8bc597f3b3de9baed2fa20f465f3cf5. 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/QMDA62304400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403750801175fc9673499435c7e0dff850ed560b464d68e182ad6907d0a5d15a. 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/QZ93L2036365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75472bbc989af899ec6a34cf8ec0ef3e33183e9ca067af455be013e74e39e3f. 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/FRX872006375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75472bbc989af899ec6a34cf8ec0ef3e33183e9ca067af455be013e74e39e3f. 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/FRX872006375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fbe93d9c7766840c5b32d55db8b07612a05a1212ec2a6f3998492577237fe5. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/TCAFI2152801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39c2483dd9e6bfecf8c279a45f4b7eec962be102e033cb7dd658b9a9c191581. 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/DGA082470526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5844a33e9d64fdc9ef2ff6543273df9d5a0acdfcb2951bb9d0fa57a79557e89e. 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/TCAIN2477286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc50f39729e2b69054d01ee40ee447e51e3acf549ba5a45feefd24b393952b52. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/QZDA72281822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0dd8dce3162e61165d3c5c99fe151234d6c40f22c639206448c0a79d829151. 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/FRX452133713.