thumb|right|upright=1.0|Le Massacre de Scio ("The Chios massacre"), a 1824 painting by Eugène Delacroix depicting the massacre of Greeks on the island of Chios by Ottoman troops during the Greek War o
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07d860100459b4939dbe6cd331a74cb289b22120739d94ee1e53959a74e1bd2. 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/172f4281-1947-4efc-9649-639ebbf487c7.json and https://artists.proofprofile.net/proofs/artist/172f4281-1947-4efc-9649-639ebbf487c7.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b831fd214d034cdeb2027cb120de5603d33d417d8c81b760abe70bf9239d7b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:11:42Z), 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/ARC822200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160d69481ce93f173560797426c0fb57b407be970827aaf6fdfd1ac8fe5323f0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ARC822200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27732ed5d5a09fd3c17146f7b12d8286a77fc82aefc60cf30e922b77201d897. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/ARC822200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53de5d49ea1143fb34656909d9dd74d1843548520f4557a8484df56cc97f49a. 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/ARF470800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2b51674fcb286c0db8938d5d23d2ba40b2962e93ad2fb936f0815e4911f411. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/ARF470800105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2850f66eff8eff9d9a5cae3640b1c62deacabfbf3fd4a458a5b37df03a93479. 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/ARF470800107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf09c9e239a4a78b6f1a06d6403b00650962b4fc23adead2a3fd499991783d37. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:43:45Z), 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/ARF470900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5788e553bc4ac1a219f5f0e732ca8c6251e649e2ed25a89d8f30a24ab50479. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:01:50Z), 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/ARF470900109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4597d6cfc6e962524e8d7192c81bf73b9085e3fbdba6815a4f0c6ea4609377f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARF470800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274432ed0ac9d4434e75ae528b2d85c7912a2d5866c376caf1d270f203384247. 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/ARF470800121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1fb25291239225e6a432c138451c87c57fe9b1b607ce2ab8541e78f72c705b. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ARF470800122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c535b00fb1437ee8e842e5b94cd7810b434aa3dc4c605b8553c0d5e1d4a028. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARF470800127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec83895ee992f8684c418bf0649ef9ef3f7ecc00c8781bd8034e0256753e8226. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARF470800133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4910d187ea572f11b257f20b8c2bf209d8325c2698e46431e44cdeb187d62c96. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ARF470800086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b1195a7004bfe03e0850ed07d10f72f50e88a14c9a3e3ea45c2d881af54299. 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/ARF470800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3924ebe6ba297737a302ddb74c95088b1da234330595fc1560cfdad455a5646c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ARF470800088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9a4a37d5938f93ceb65bbd193930586c2b3c34a87c76e38c54fc53f5113714. 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/ARF470800090.
Bienvenido al Mundo de los Conflictuaditos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28da2d6246bfe216d90270605c7e0ed96faac52d30b8cbf2c186209c5d66c5b0. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ARF470800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5befc5e455121b1cedaab81a4929fb889e0e7598c042d9996813feec1b70092. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/ARF470800093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x264c71da40eec400d780e28d9a813d075d03f69905d2a1745337e67520b89d9a. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ARF470800094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c44461e44c2d0d51cf174c08ba0f218f59766ff1900bbb91a945076c04d0e5. 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/ARF470800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f38d0baf67d3a81f3e35e2c67d95a0e1d3408069cdade631918d458a20d352. 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/ARF470800098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf513d8b8eca27f45ef1230a48627f4b96e17d594301fd302dd63ed10f32d47bd. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USA560696361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305f7a5db3d316d41fed18f776c59d9d08f37f5c3829bbdc03a94e7baddb6e0e. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/USA560696363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29978be77598dc891a99d47f4ca72e1ac7319fe345ded59ad7994ece26383865. 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/USA560696364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049ee41d11374efea30680a4ff73d3640999730e53fc416ac7356713649bc381. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USA560696365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe128c579c542c19f02886422024a0297452f42c2f11c9f408a816c8cad3fbec2. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/USA560696366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab1add43260422c0038c2b28ba364c1b61d374e7a58772b37418e9683bd3205. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USA560696367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cf45342f8bd8f365e933fea65a7235c8435f5166220352fc9a2cfda76a3826. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USA560696370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a55158de73fe4dd6e5b61791e0c2f161967517950163d42acf2b64f4d16a29. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USA560696373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e91101c6a66c4b0734289581d7c435394f73a9e3e01949a928e0ccdb133bcef. 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/USA560696374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85f43c5cd15a34a4a92a83b1480d473d575432fed68b38ac0b1b03f0859e74a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ARF039400736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed24f5ff885a3558bb8762fd5312b91099d9ae54825f279fa30051bc3d3f6e50. 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/ARF039400727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd62636ea83003ece9015ee3b5c11efb0654c3fe09f9e7174e05d9530211c7d. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:23:32Z), 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/ARF039400732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc654e291fc012d357c37c14687402dedf0f45aa756a0d210d56aa5fe500f601. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ARF470600132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876360738e5cb3d8a779ffa9b777176ece9a45edd24bc94e0989f884498c62fa. 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/ARF471100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eca1800db2ca1aff286fdfb059f65b66a1f27ae0d95448999142d4f64fea613. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ARF471100068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c0c889d67646d1e0f989285955db89c7a6f2e0a8c715b713864006dc3ad5cd. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:38:53Z), 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/ARF471100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3200ca4eb13dc3fc179a4eaa7e8fb0bbfac13518a8df9a8144c390454544e9f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ARF471100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9c255bd5d7fcc48c3abd2c82026bdd8b3038eeda875b313cc90dc2e8099eee. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:16:32Z), 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/ARF471100071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26f7c968653c91fd477fdf6d386363178d79313407c49e972424ccc9d35d1ae. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/ARF471300116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1b7a825467d24a28a3046ec756bc08d22445c696d534a9c527f22376b85e8b. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ARF471300121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1820bce1fee1dad5f81904f06e69912973b202af12ba8c883877752bddcd9329. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/ARF471300122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4277398b3a2984abf3cf54f51da21b3999820099456c9a4c4902634af7153f. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ARF471300123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058d78f8cea1e4691715485c80ae3719a7ca8fe3528043cfda2629c5888e78ba. 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/ARF471300126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22dc027f5a36babd1fac7c893711f1fc5319c0705d3ffe2ec94be9ccc54658a. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:44:53Z), 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/ARF471300127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6cc726a172ef0dd7fbb7c13f853327e4b0853e305bd90ec6c9c21dbaeaf656. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ARF471300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce81e9e479f6118b9edb3e53ae14ca165def51a9cb1a779f016c38366fdae8b9. 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/ARF471500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b52a6b4d3a38f33c07658ff5ec404a17b1053450857f95360024e99895f346d. 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/ARF471500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d0bd8b10506775a99dad79972a6003fdbe80eb7ec967193ea1706400f8e439. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ARF471500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02453caeaf697fcd069df2bff6a757b49ca5e69f25058ddf6e6bf3eaf1715664. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/ARF471500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fffea14ad55bc959a080bfb53ee94ec227587955cb80b88e7f12d97c99a9f57. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARF471500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b536a30a3b67a020d2ec64c57869f89d699bec0d22cd8d9663fd51fc966064. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ARF471500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118749fda0583fe856185fe3d09a7af2016ee95021253e1aa9ed793eddd4e0a1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARF471500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d4981acda9e918950437cef218e17cba9e82c266483750365ca6361d57fe8d. 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/ARF471800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3ebcbca26b5fdbf19db8ca9996de5f4eae8770c8027cb54a3ddd76b678f8d9. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ARF471800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a25a6c8044b9c08aad2f3a19e73f45419e9c01d5176a13fdf578ff5e29f2a6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ARF471800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53edac8efb4bde05913fc966460e8d09948bcbb14d8695e4ff2946a69593778e. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ARF471800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72cfbcc026a85cc91b0305be028c8fd232483ff52d58e9cf93090e0c897871b1. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ARF471700270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912555f16582abd444cbb30cfbd523144409a9c40038631ee316537a5727f2c6. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ARF471800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eab180291341169dadc7ae923e758b25179b921739ccd662e45da3ce0140198. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/ARF471800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91cc8cbdb9d4730b9aa33f62bcf16764061ffd9e07389fee22073f4ed08b7b9. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ARF471800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf441e0cfcb6ffdcdcc8ff96c330c175676c15c8559a89d77816ea0da6fc5482d. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/ARF471800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba11a4aa536073790a9ff25ec7fc42141a1827be2fab832008e060b95dc1f58e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:14:12Z), 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/ARF471800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3400ce5b205e6bb0444c9311563123f15af49d933b39a51fcd320697d9c16e3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ARF471800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082fb65c7ed1cdb28e0f0128ab36f93f96c6ae0719f20dd72d9378bbc36ca432. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ARF471800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56edf7b175ea14ebabfd55fb108933f6787a41d8794d192e5b178a1a8e4e49e. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/ARF471800035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89f9322c39e4f8150d13eb37c17a0c6037b846a0714e7d577d48e95ccf9e343. 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/ARF471800036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a584faa9bdba38485297c704e510edbbf04106f8739d44d0c2ff4e72dc56208. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/ARF471800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5590437d728b8c80990b2a1110e56e5aa6d1cb9bafc95634a0cb9ae0d92073. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ARF471800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde3601d411271cf05486251a5864859ca1ad11498cd701e0cbfde44e62a5a7c. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/ARF471800062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ae325aba389fe350f062e55692b4a42e75e41c2a50e4e53c3311739fb452c9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ARF471800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ac92dd1a36d9d4d955d18b058e93ad5f91d0ecd8f28abc7208dd435f1ada48. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ARF471800041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4361f0ca765a4dd1d79cceb326fdd1e19356be181d154487f3c8edaf45b8a86. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/ARF472100150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc240ff50be7776c4e1d3060d0e4b4927c9cae45f2b98f00a2a3d21192d01345. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ARF472300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5bc40af57866acf8961ee3d8dc646d310ea6f2ade4564f6c6e3321a07aa8af. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:36:20Z), 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/ARF472300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258b154459d4baf7a6363fc18cfb37d310f50d57ad1481eddf8fc38da16dd53c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ARF472400079.
Day Tripper - 15 Años de un Viaje Sin Escalas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54856be8fdca62d05b889a1a91bd626b36416374c53e4078f6e845562ffa653. 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/ARF471300187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24f0b39fa01f91392ce2b6deb717cacb365b8500d9f5685a5b3b08d600864e9. 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/AR6B52200038.
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