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 0xcdc11f9c28bdfe924bbddcda6d5f05dc3d3480a929d13dad2850b07ec49f5bf5. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/763b7d23-6c5e-4668-b2bd-13cf8d3e8a38.json and https://artists.proofprofile.net/proofs/artist/763b7d23-6c5e-4668-b2bd-13cf8d3e8a38.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 0x9f98a46fe0f32d2fc1acf7403b8dcce7d7440e4b4720faad8a621ca6e968c923. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USBEN0852612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25d988967a6c77e313954c6cb101320c7dbda599ed09afdc1d020c324ce4b6d. 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/USBEN0852804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f42d2788d52ed185c59e66db57ad86051213e9e2987a140cf8a07712338c6d. 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/USBEN0852807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953650439a9da174757a9b9c0a71f77836ade82158755c45b8b2ba8368affe9b. 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/USBEN0852601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8adaec8cb71980a463cf83238101f81ad190a1227000b79471a286b2dcefc3. 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/USBEN0852602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd5818b72c3994ce97681b2662da4951638df7c81e91378d587c0559b8c35c0. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USBEN0852603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fabf96e769b9f8f956c63338f4e848ade70337e8ae977a3ae88ec3645bdd2f. 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/USBEN0852604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed398e6cc103b3a7158e242a35e604d9560d00749a762aff8e93ad41fb2fd059. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/USBEN0852605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e228e26e39203c9cb06ae1f8b09d41f4c05453c69b43103e44bbdada8ff73a9. 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/USBEN0852606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0e32385fb2241bb02fbae6b23a6f89e29ccf18749b74bf57d9f738d083291c. 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/USBEN0852607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18a82497a0dc5aec3864453045a0d4935102428135e135148be985379247000. 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/USBEN0852608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5f4aa29979001e7317244384fa8c8ceb34b2728bdf8577325d70b056f6e862. 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/USBEN0852609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa57b26090a1169502fae11d2238ee71a20d73b50f99de66f9e2eaa934cc331. 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/USBEN0852610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580919d03baa3117a3603a24e94a3e7a9116ae36effd6e24d93d4646975fa3c5. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USBEN0852611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f98a46fe0f32d2fc1acf7403b8dcce7d7440e4b4720faad8a621ca6e968c923. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USBEN0852612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675765e23a919f95f5735a8c8b02ee8e3eee6de542644dc52ffd2789057dca1e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USBEN0852613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c159688009ebc6c92fcf2b617c3bd728888bd1bbcd8ad4713aa452a866eba2. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USBEN0852614.
Soul Jazz Records presents MIAMI SOUND 2 – More Funk & Soul From Miami, Florida 1967-74
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c810db53faf28bc1814597ac026c38a84295d784a8ea4252594716f866f8a24. 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/USBEN7277006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcefac35701ef8fd85151b096a25bd63e8e1e581b5c8aade25e5fb741f507ac8. 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/USBEN1257406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed398e6cc103b3a7158e242a35e604d9560d00749a762aff8e93ad41fb2fd059. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USBEN0852605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220795398b19a84d369141397b748b255d28b73da2e0a72193eac3aa086a2fe4. 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/USAT20400301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6826cbcd8e553b08bf671c78b4fe384d679e60a86dbd257a2f50ece5106d3f88. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/USBEN1353207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaede215ca4fb8259133f6b7147c0825ce9eb5e81c64295b941623d6a7d6babd5. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USBEN0852704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25d988967a6c77e313954c6cb101320c7dbda599ed09afdc1d020c324ce4b6d. 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/USBEN0852804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecdcd0f1a219eb85eacaf90a389d849263582cf5e7408bb65ee94e67c9f00a4. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USBEN7277001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcecf8845c058eee050d96328e030dbd68ad2680c73a246bc05b98111e2808c. 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/USBEN1256605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b63274c451fececdda01d25c275a40a3288a4fc474f35a7f1f28e8d892b1aab. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USBEN1258902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fff010badcb56590d6bf328f27fb376cde8834b61511752eafe4e947ede423. 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/USBEN7551702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc964ea15cbb6558ebb606d99c45ebdc0b6a26acbec97e83edd78ef8f7b17f220. 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/USBEN0772311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a83c76b138e16714608a1b403bdff65d3765dce73db7d632458d3ea831d7ce9. 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/USBEN1455417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78ff77deb0bdfe1bc99babfc07b50c20b788c218d6fdfb907654ce006d55a6f. 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/USBEN0800106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb59eb6c465a0b76e3e0a26383c2edc46216d71b7c00ad372b74103bf3bd967. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA370527191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ff7f1f3cfad691e1b800fc1ff5902d1bad28965fa61537f6e9261be52c4711. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USBEN0772309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723a18d2d8b5776b3732fdc03d604f3f926f2f97ae61d6efdc98a68ff3f854cc. 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/USBEN1256602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fbaa92c14fa716bacf62ee6c6061269e422a969b0b9d63b7e8b0535d0a9a2d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USBEN8160103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c76e2f54c51959d9f11069f0a3fe71cf321537d2fe76e5e77801c3a52599e10. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USBEN7410001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a98ee7d1501273630d0a127e72d4f5a5868126ff2ad6e4c6f6236eccea9665e. 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/USBEN0852501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905de06c3ebae2610ca926018ea27d1985526add9e4d19f7255557affb716037. 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/USBEN0720101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8e2c8dcfc31a7806d6cd3d5be2862a73881c3446011c458d4b702685f765ff. 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/USBEN0852505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f714ff8ab0141977e9a5458cced7ddfec599266cb72d9579b05e7a5082d06c. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USBEN0852508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5300dd1af777a4b7d4680d2a7cad3aabcc3d59095822401c1e623f59e071f31f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USBEN0852509.