Ruffin may refer to: People Ruffin (name), list of people with the name Places Riffa, Bahrain, formerly known in English as Ruffin Ruffin, North Carolina Ruffin, South Carolina See also Tierra Ruf
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 0x8088d5d8e12171a11a732820c92f0feabb5afeed88bd6378e6ff61b1b823637f. 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/aaeb1504-f61c-4aab-8e49-a866b99ffd95.json and https://artists.proofprofile.net/proofs/artist/aaeb1504-f61c-4aab-8e49-a866b99ffd95.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 0xda36395599e11cb796457ea88a2fc937861f4645bc21c90a2be2c2843a78e10a. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/QZ9RV1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3709ed63fe03810e0359884f1585e32c35e29c4a1e3bec99434dfeacda4a00ac. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/QZPLS2032444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89db439522b7addde348cad482a6865f8cff7314281040e81b3f90ca543d8632. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZPLS2032445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e92682cb50e196aaf86f98c85965ceae435fdb883be5a1d0e500edbbde34d4d. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/QZPLS2032447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7929d3577ff69108fec26d35798913725ef91cc1235b26655ead1d0bf4e904b2. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/QZPLS2032449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421f48c2aad6cc34c224193448c1a3e72bdaeb728f049d0ccea8b9b3f6ccb549. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZHN42194948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b381d90b4e0825c8fc2705773867962879d112f97b7a13a9d7704cc63d4f69. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN42194949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b79c973f812873d60dff548dae7129aac48f9527d79dda52f702c70743c98d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHN42194950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824a5eac9c4af6d1cf7d94604ed70c75f1eea7538abd105800227eb1f38e908e. 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/QZHN42194952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc2af11f3f3d13ee611b1c62eedbcfc20ef43c87e1d65a28ec871f75fd4bd05. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHN42194954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8941c7974b94e69e50010fed171f96a0ca8e55a3cbbdda14ba5573233c6006. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZK6G2191915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe204b0e2fd5fc0c9d1fad87022a3acf101195642e10efceff30a0d8aedec1ca6. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZK6F2172923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efd27c8ebfaa345cb9b6285710915d9363460bbab85e2ea0eb3e58e845d6f32. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZK6F2172925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33864a410e9deacb96e022471fcaf657f8f98520db766d996e3d4f8f3a0e015. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZK6F2172926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f2eff241cf263ff86f165ffb8b4c740e811277f504bedf78d236c37c38b3cc. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZK6F2172928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1801342dd214110d5ea9f22c4303a3aeda2e0ecb6f4460938247d7105094535c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNWW2117021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391be981be1eeca101d0fde3061bb1dd2d4046568854ea68400b9ed41e2ddcbd. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZNWW2117022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e0c3baeaf7ebfaf714fc2fcc61ba60034753abe33fa4c8bf01fb6473500754. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZNWW2117023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913a20973cd16a7ea08a0699de651672c2b3f5e1599f25c3ba7cb4a08b0abf03. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QZNWW2117024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328f240a28f2bd4da4179091a1ce011ecb3b7dcc5ee28d6ad956650b21db3573. 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/QZHN82206769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50854ee8634046ad9fd387c9285212a4fbcdbf3a5a9c67ad500b660147b34258. 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/QZRP52391102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6540fd6af0257932242ab1eb9659576527c498abed2da0fccdb371b6f0caa098. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZRP52391103.
Instrumentals, Vol. 1 (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee832dd53aa16ada8ec53ffbf3663567cc3e27d8890042b29be30f0e9741e2d. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZSYP2434500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022bf7f5387d6879e41ef963a71ec662697a335a2e0c49ef40256290348be19a. 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/QZQAY2482542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331e2b6518404b981338f12532ddd33d74a9249575bace27328b02e92999d62b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZQAY2466439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095a8dd9a2ad0e65b042c07f296d67ecfe869a508abc506985bbe7c1918bf106. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZQAY2443579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16dc93673f0eca7105cdf8b6ecec70fa7fd234f24328c4b5c66f5ba33ab0f350. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZQAY2495859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40954d15c77f636d808583327ebcfa1bb1de7eae4351007ce677a0b24143aa5a. 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/QZQAY2406877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4308d99048ac2dacc716b4acc3633ac1ca7c425aa7a8e0c12d09b777f8457970. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTLA2534213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f25c43d1fe4de973dd22f0d330b772344be7655192136d4956067b1f4a20be. 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/QZTLA2531520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb167c36973d806a01c836560db5b97707333aa90f0aeed1f1a649f5dcebb709b. 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/QZTLA2586653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b6e5a2c0abf5198a95735995455e827013ab0147224999aa06f208471bfbdc. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZTLA2523299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98992ec97c431ca32a5b9e0fd09c5970d9b8bf683100c8cd155beeda6df2afb6. 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/QZTLA2585327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce58ef9bd7e48fc88fb642c59cdabaaf370668da59422ee76cf31cb48ce3468. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZTLA2551675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac8351f16b50f3f4b99580e6b23e07b45cc7220e13518d44dae8cd162f1b811. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZTLA2566899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451af3809eb96342615a4d3adcb911663a8548a89a1d1871ee8b3a245ec9bb64. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZQAY2528594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea1e8156ffc271f53439ca6eaf5c6521ee3830bad78e5d68de0effe986d7957. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZTLA2561336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b72437d389798945233c86935e189c021b6e050d498f2a8566319e0742cdce7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTLA2523940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a406146c2501425c889a9a0f8b28d38f93b19ae6c4e37d7904e6a180830c995. 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/QZTLA2585374.