Snuff may refer to: Drugs Snuff (tobacco), a smokeless tobacco product that is snorted Dipping tobacco, a moistened smokeless tobacco product, colloquially called snuff Snuff bottle, a historical
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 0xa8437b3f0644edbebc57a17aa799ba0053267e8fec6ce06dc2546855166d4007. 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/66c2c437-c6eb-44be-9a2e-37100ac39408.json and https://artists.proofprofile.net/proofs/artist/66c2c437-c6eb-44be-9a2e-37100ac39408.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 0xc9d0d4cc8618ac221879c73eefc639796264308155966cd669067fc2226be4e2. 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/GX5LD2100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3907f117591100681804b6e913131529e156d28c19b9b2a684827672cfa32b. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/GX5LD2100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16123a13f2a4574de2a47ca40c921fa7f977f01b9561fc9a1b0632268793de28. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:33:30Z), 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/GX5LD2100051.
Come and Have a Go If You Think You're Rachmaninoff
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bf6b0dba18bc7449727782142b077231068bcd0d8d2c6baa334d75c9439b33. 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/GX5LD2100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca841dfb71249cb966535df0d6c2134f4fabedff073374a759c9a935c0a5048. 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/GX5LD2100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cca8818b4a7d5343992c4cdfe02e7465eefa2fca5a1c1c9bba0071b46ab0d8. 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/GX5LD2100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2dd24c4c8abb514ee93ad3f781a62170940f28e95ef5eb9ba1bc9de020632c4. 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/GX5LD2100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2bf207b0d63bd3a12f6729bd48c559caf52da413413d8193b967f81da0332d9. 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/GX5LD2100047.
Crepuscolo dorato della bruschetta borsetta calzetta cacchetta trombetta lambretta giallo ossido, ooooooh cosi magnifico!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00dc38ddacdf6651b2412065979661b490352fb844a20dd5fbef293a2dae46cb. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:26:17Z), 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/GX5LD2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284dff5ff08a628f09ef396c766ff48e1f5775a624de2d15b824b998bee627c8. 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/GX5LD2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45aeb99d1ae453d607a8a24a057804e0b34ff68f1f4d8cd1a3a07bb8e9ca57b2. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/GX5LD2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b7384cccc342ab982c331c934c69e0c0d1fa3710473a0dd9c137b9cc29cb9b. 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/USFW41810801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8092be032f07c0880ae926c75321934cacb85c7be5ca9c04c020897d70e9080b. 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/USFW41810802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce713f8332a91e19084f55ca44a49bfd894cacfee4df833fcbab5922907b6f94. 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/USFW41810804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3fe64acb1748088f546e67969e891fc66714e100f38ab723b52f2ee82562c4. 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/USFW41810807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d44cd1dca350e6fa8c7510e44e6af50096ffeb1ec99f0c793ed5b59c8e001d. 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/USFW41290301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f2886fc294fa8d3a5fc143256b5287c81b3a2e8a9740bcbd404213b3d30ab4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:42:34Z), 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/USFW41290310.
Potatoes and Melons Wholesale Prices Straight from the Lock Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ec387dfef9dcb76d7f5dcc9a430072d08e7a1d17a40f1d2052771d9dfc87b7. 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/USFW40455601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cef188e803d45da9b34a90a434b3a6f7b887a0e81d262fb199360b0f169fe3. 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/USFW40455602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06c9fbe5bb8418063adb5135b276122ec25258f924b38cbeb7647224e9054cd. 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/USFW40455603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829627435dd38a558b65e47583a696907a9587a206c59e085d1351d74fb3287d. 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/USFW40455604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8180e1a6952f541cee5251c6ce03aea2fbb4690ebf5774fd34bc778f0f88797d. 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/USFW40455605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de4906ca2333fc296cd5eeb6d3a30eb5525309929d5a0c5d056af70ea11c6a4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:30:49Z), 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/USFW40455606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3740142387e34103fcbed24a477529fc462a6eb9e36fdf9284c63a36bec7009. 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/USFW40455607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a5df19d37b9e489fdfe7564d1294fcdaf46ededf5145bca0d5830bdceeff58. 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/USFW40455608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1c66224f0bd93379fd0fe6a1b7f99a05cbc7fe1d32384028d0c12940d30894. 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/USFW40455609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90303bc89b759824fab7843d09c6942bb381f43dddde548d8c4fd9455505668. 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/USFW40455611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cefa1eef50b3f73af9386d1f1b2af5c9b09d21455299754710516c46644e7d6. 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/GBLFP2000519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f30a543c9c481a636e35b9f37bc7e0805f75a2046045e55e81989ca1bcd754a. 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/GBLFP2000523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3fe64acb1748088f546e67969e891fc66714e100f38ab723b52f2ee82562c4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:05:19Z), 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/USFW41810807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce713f8332a91e19084f55ca44a49bfd894cacfee4df833fcbab5922907b6f94. 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/USFW41810804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb3bc8f3daa04af7a41641e076be6c2978ab02db0589fe4ee641c5bd7d82c8b. 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/US2Y30630423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30850746ec957fdfdf803b03b8391a0de50b4403fb04c380c10e4f309a8aece9. 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/US2Y30630426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31287bdcf94e0fcd581bb3e91e0b73594a1bc6d22a06753da9aa6d8cf60a4a3. 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/USFW41391507.