EF or ef may refer to: Arts and entertainment Ef (band), a post-rock band from Sweden Ef: A Fairy Tale of the Two., a Japanese adult visual novel series by Minori, or its anime adaptations Busin
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 0xaebbbd7078ea6f3b1646d599252f23200b0d23a76e3f777454d32fe49dd37ba1. 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/a31dab24-776c-4c74-8b88-6f964909b7f2.json and https://artists.proofprofile.net/proofs/artist/a31dab24-776c-4c74-8b88-6f964909b7f2.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 0x2b076494bfb8e64df5630a7a5feee9b15641dafdec3b22fb0445f52bcf026373. 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/QZK6G2310551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c8f0659f9792e9ad3d212c621233a7c85ea423d021cfb3e73504550a00eda3. 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/QZTB92339596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef5f6436ccf8ddd45ae0f08b4528915ce597d5a30cb5f44a14a0ef9aeac7c5e. 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/USLZJ2447716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29125786cb4c36ca9e761c6559175c7121f3c6f4bed75a65d045a5cae314616b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZZ8A2461869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed0e31bf315675bf01bcb20a740ece8a9779bb1398c95108a0837c00a44a7d9. 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/QZZ8B2440153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171638e05cf0be4fdc54e14180aff6df16d36494828b177627f9433d83df6a58. 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/QZZ8B2440157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5dbed4bfd44a362c256d20a4ee3eb477407aa9330e1212d8b602c5c2770ca3b. 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/QZZ8B2440148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8ebbe2b168e72a3b5959db03694df1ef27afb7607cc5e15b102554aae55da1. 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/QZWDW2442672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91c7a04c2083b534522df4d355f81bf2ad3b7d902b663e935f255e39f42faf6. 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/QZWDW2453567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bed94273153d6f366efc8b8644b1212f5683e241947ce487acbee1746b33e8. 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/QZWDW2453568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77173e988b2fedb2a717f40453110b4d590952aa08a8f63160acab73804628c5. 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/QZWV32473874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595a175e81f70b70f6506c3aa876d8c2d0ea5fdfa8b146461976ee99db625d2c. 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/QZWV32438539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3b7e0488e3874722867122790b1d7f2f26efb2803ab78cf0cbb24b54edc64b. 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/QZWDW2410137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190fec96ae3f28250aca9bdbdebf990bbf49140845405ab5d3ddea9dc68c95d8. 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/QZTLA2462812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bac0dcff3086b35ccb6ab4d80b68617564ff84cdbe2376e345937733baa69cf. 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/CA5KR2461124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c09a4144fec24059fc2fc6ea4780e5e6ebe14606ef83d610a5a44e199b49ac. 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/QZTRX2473958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba2f96022f2a7bb3a3032bf30ccef142beca610fb81a8e908606ed2f3a7ec34. 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/CA5KR2456060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630a99dc9a213352d74d1f488d9af6bee6c4cb0e607dfb8a1d94c1f840e89297. 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/CA5KR2439196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bad1818d973fe412f9e61cbf42d3448161572a68c537256079192cdf5bf0bf4. 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/QZFZ72412330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8956841558ce20f7f2c3c0c560198792a3b65715ca080ede51d48a5f6fec02d. 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/QZZEB2361153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776535e18c12257e670aacff37421722d98443bdb8e3c31249ea6d5780f686d9. 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/GXBAV2355491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f60a26163b0bb827db01eac5efc1da74fed19399647fe4b422374ebd492995. 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/QZTB82350524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc10ebb1fc6958c569637d085104e57bed75bd8b59c9aba0c354c813abcbdb1d. 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/QZTBC2313685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11394aa44a6a6eee068d82e3b3ee25b5a86ac818d690e2a170ee020bc4a380e0. 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/QZTBC2319283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0943d4ce2bf477942a9fa042175b47c562735b8fc9beae36e6814cd1bfaf1144. 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/QZTAY2383409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cf8e75223da26c783caddfbccbabcff664fc887cec0015a67975a32abe8c5a. 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/QZRP52358531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec108ed0b7161fc80e9037098f8364fe7e67d2872ef2692da9beda85dc57d8e. 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/QZTB92239038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6bf996a903c20387d33a04f4a025022caa4d1f8eb0b0fac128b11e291c8a32. 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/QZTAT2340169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751c5bd73f7b41f30e2d034c83824a4e03b6761cef5c75e7892cbbdba3a4d1a4. 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/QZTAT2347106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761a8dab088b1e8790a5c6e629a4f67d840213092e2aba58b5248b435d204d9b. 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/QZTAT2345067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6bf19dcc3251c59799b1438095b3bb8ae91b56442b0591002f3f322d722a9b. 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/QZPLR2390032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10d1862b59d0e55a9da3605a9567ebc93ef0854cdb71154be171ff38f39bddb. 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/QZPLR2390033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866f39fd3f38c962a195d6bbde3107bc49e5b53e6b71226ac9632cdf1d02c2c4. 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/QZPLR2388559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a00ca28bca3801d6691dbfac8dc4cd6c7d4e7c79679b1dd1c66f284d05ded20. 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/QZNWW2336494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6221347c6d9eb6064930f6c0f5ed9d86db7afff68de2b3e415f505ec6c7aa68. 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/QZNWW2338319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69b136da14a646e3aa402725d090334c7fef5756c4672823ab3638da88e8a8d. 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/QZNWQ2325520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e4dad06d5f2464d0bb3d8d4a3a2584ba3bad0fcaf5bc08d90fe0772c9ed880. 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/QZNWQ2329814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986958a183839a9dccc1c1ba5a1536ba670a000d50f993939710c3379e9484ef. 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/QZNWQ2337334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3764ceb57d334b6d0ccaef34a9f068a56c7899e9fe175b3753a11ee1bba705. 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/QZK6M2390910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac81baab6fbc2650f7fb3788985156870bf34a4c2728abfddf83bf7c537ab15b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZHNC2386297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf744bc8a6565d9020a83b6f519b7bc5643c7fff7797befd256de210bdf634c29. 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/QZHN92317383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52abb008e9fbcf80a598f8ccdf00bd2478e805c456b047a44a2af5f44d0d9c3f. 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/QZHN52394069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ff97d4aa11ff3305b0ee1689cd7ae54fcb342e3158c54efa5ce4795e8a7f32. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCRK02300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0288eb49e5ae6cfad06fa9565c7828d3753da633c12a57718aad77fd6dc29797. 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/BCRK02300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915f46ddef32ecd7c8456686a489117bbdb548bfa971f0a9cb1c9940d2f46524. 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/BCRK02300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ac46ef8d0ee8c38f45e38d6225fec165df69ebcf4f9d191053ac04176c8f65. 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/BCRK02300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb52d616460f5ced24fac8fc3d6dfa1903b2a2e48bac2a7bc4c70623f9fe6ca. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US7VG2268853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa29efaed5d3cd989b6dd21464091c6731feef261750ddf57aa0a90cb7dbbc6. 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/US7VG2268855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e24c2d63c69084fbf088abebf2dd6125c00b455570b627982e47c3cad80b7a1. 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/BCRK02400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f72260a1cf184d2bd01d3d3f3601b82c98111ed9cbbd6ef74b0a30b97399d85. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCRK02400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fd6f517bf8ebef55f05330c35cb93d74b955d699e9f87274fcd73f1103a963. 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/BCRK02400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068bb41a7f8429dc222859008c509d837c470d5d70c887e97bed2d35771950f3. 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/QZZ7V2463645.