The Dachshund, also known as the or , is a German breed of short-legged, long-bodied dog of hound type. It may be smooth-haired, wire-haired, or long-haired, in various colors. It was bred to scent
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 0x3b35aaa2675b7ec7bf7620b5614fdf992fc7ddf39c1eda42924c0af4baf488d6. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ac1a745-84ae-452c-b2d9-626c4d707209.json and https://artists.proofprofile.net/proofs/artist/2ac1a745-84ae-452c-b2d9-626c4d707209.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rough - Nathan Coles & David Coker Remix
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 0xd92ea3b69093c6e9b3a86a91ceaac00a89a4615aac9b5a8163fedffa4804b52e. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/CHA491300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1198ab042d668e7087f436509a8bfa90b27535ac5771827a2a435022df00e7. 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/GBKQU2534526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045605073651acc39a85c68d43856b36f0987fe248b04f190b94ca513be8b1f4. 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/DEY472571988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66fe48dbd716a8836d3f3bd9ec50e5a8a73c9ef54047b5e653e5412de302a269. 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/DEY472571989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0520d653b903b3ef951dfa138e273cfdd63c7c80c732b15aee835ffcd42b4124. 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/DEY472571990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114c865665b210ea04630f7dc34a1d4ba189fb520ad917d3c48230a5fda58e48. 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/DEY472572285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305f31fb3fe0ac09a972d00d5cda353e232fce7509f7edb0371ed144afcd80e9. 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/DEY472477540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd486ac2c6672004d990d8020c9f97dfa988c3f1402cf609238ae675271a5953. 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/DEH742419995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30375c25c9218abd71f28566d3adc17c4492cb2a0b42798aa97723c088932cd7. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/DEH742419996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8629a7b338b7cb314782cd9af46b12d12af2568d03cc23d12e0f3a2d6c946c64. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/DEL022420003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd3a552cc98527315f362123db82bedfb006da028b3820f3caa52aa6d462145. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DEL022420004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105169c7e68e285df2484acbb9b1987147ffbb84365b2d92eb8417bbf6101212. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/DEL022420005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c03393b305c357dab1432a58a8f36f3e51ebc95ce21c03dc4a576ce70e41ae. 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/DEL022320007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4350929dfafb34acc5852e7ffdd64b4fa6715d07a0964e7ce058fb7a739aeda. 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/GBKQU2289703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781c649bca00511af09b06ac3963b28c39ebbb253e56fb3f4a51cf090ec695e6. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/GBKQU2289705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842ab1e77d6ecb73682af1b138edd4530cc015fa4e55df678f71698f1d27f486. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/US83Z2222519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffe05b2cf7a50977e74ff2b7be8a6870b4b123ab9c3349284b8e2436aac4346. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/DEL022220003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323a5514d65543ac074f46d693ff22ae3ad3528daf523f46fe666ffb525ecfc0. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBK5G1000379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fedc5381956d537c3432daccba0f4a81dc9f726360a1bf4b030cadad8ebf72. 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/DEHM81800460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d706f75b929c750235305cadd5194fa3a1c8b13a3f5a403db8efcd6b0914b18. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEHM81800463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baa328b460bec481921b587f0592be931b304ab7972c0c3ab3c8be9540a6f45. 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/DEHM81800461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe105ba13101a6422cd206d63af7e03676d6dad4bdcca1b4d4fdd1dafea4401cc. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/CHA491301023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c78be6b2b86ae11f885201fbc4a7821ac65cc78f352142b31287b60919bf48. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DESM41700246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5875d7ed906b93e1d393a93ae9fbb7d7d7c823dcb9ff1d4110962dfbbdf7d145. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/US83Z1666088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8762d90c9748e1d840db457e6d9ecf313f5030e7dc1816fbeb03e6b99878077b. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DEHK31600574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58de6c1937912a851ab9fc309f4ecb3072d6e1a809b7c8447c811c4094faac7. 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/GBLV61520932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edf8ed7007e5237f97ff7bd90136ab107deb8c13e35557dc9a034e38e167ec7. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GB3UY1000098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5c19a3da15c145a78b2c487dca33c19a32b6df1a119ddb35820f5be71ded72. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GB3UY1000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58fedb938a8baed9baede866c554955b699ad3902a8039c77243bfc4625635a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEHM81800301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe91612bea3b65e2e7bf04f835bcf107091351ab5fc24f52082716fde5d34816. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBLV61908830.