Stephan may refer to: Stephan, South Dakota, United States Stephan (given name), a masculine given name Stephan (surname), a Breton-language surname See also Sankt-Stephan Stefan (disambiguat
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 0x71c5e69ff88d6e912b935d83c0f2f5885f7fd21ef077bb18b4679b189ad51493. 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/aec3b175-4ca5-409b-b81d-5d9633a4ddd7.json and https://artists.proofprofile.net/proofs/artist/aec3b175-4ca5-409b-b81d-5d9633a4ddd7.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 0x14823ccf836e6651584dd7e18c41d3ae413b12688e1fa5af6c07c134c2712895. 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/QM24S1927000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1293577f11bcdf047755aca8e7c1ea1ce73fad4778ca7d8e49e5a19631308fb2. 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/FR9Z61900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4f8165d7ce2a56ff9a4eb73b65050acbbbc19061a905f69ee68debc1d7fc1a. 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/FR9Z62000222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af271e515b57ea92c49d5d20c4dc319ea299e9fc788b9f9388375380cda371c. 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/FR9Z61900251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f342f7f120f3d1a011674ee558945bb128fbefb93664598e310ef18818aea5. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:23:28Z), 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/FR9Z61900260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2609842e58eb91f6cc59c21b851634441e31c58b9468f7b56756dc0ca8f46d6d. 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/FR9Z61900203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675d2ee5a2d4700766c1e38a7e5b9fe530bde6980409e486b717f2dfbe02c2b7. 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/FR9Z61900104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e0ed1f4ef3f2655cd9ce16bed20f8e99ad53f04bb9d49f3290c1cf2eb82634. 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/QZTB32207822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba5618bf8ccbac6ddea4286bcffd006ed12ed4a19de6ff22ba8060d9bf34657. 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/QZTB32207823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe70a376788e09cce5159b9d90a1a52ded63a78052e453b8a7c9c32d65363ee5. 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/QZDA52085544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db54397be03b047fa7d0378d95123b31c2da54b8794dc71940d315b03916312. 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/QZHN52471530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f562c0c6444bc0d22811b1bd3360f149241cff09b84d4b039d92bb2668dcad. 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/QZHN52471531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d55286a47ab54b0623c8ba4157c48d30b963ffa1b6947807185b1d37d8fd68. 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/QZHN52471532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32649f94c5997b9f75f355743168d0ca812971f57c5494ac8b455265a72e6681. 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/QZES82132090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c29cc3f9d68e6afb1a2c76ddb17756108333f1552143efdaeb731c3ab6ff31f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:50:24Z), 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/QZPLR2092442.
Dance Around the Room (Quelle Rox Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe70a376788e09cce5159b9d90a1a52ded63a78052e453b8a7c9c32d65363ee5. 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/QZDA52085544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9648cb360daa5d1dd755fa6be110b9682cfb6032446eaf59a4d7361906c364f. 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/QZFZ22035417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29768749efa94bab141ed50654fba5307eb83f56803c7f8e91fee1ff203dc0f2. 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/QZ4JJ1986390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ffaa3e18fd757f5dfd8398389c80f2a861407aadf8d4d7f65336c0a1051e68. 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/QZVEM2382293.