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 0x3a7799f234fd04ce751fd5d9f64a5b150cedd08999918384dd9f2e349b368c77. 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/ed66ced9-b188-4867-be7d-5429c70403f3.json and https://artists.proofprofile.net/proofs/artist/ed66ced9-b188-4867-be7d-5429c70403f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Piano Classics for Babies – Nokto Naptime Vol. 1 (Baby Lullabies for Children, Sleep Aid, Relaxation, Meditation, Lullaby)
Nursery Rhymes for Nap Time: Nokto Naptime, Vol. 2 (Baby Lullabies for Children, Sleep Aid, Relaxation, Meditation, Lullaby)
White Noise for Babies: Nokto Naptime, Vol. 3
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 0xd41c62152c6fda72b0088a6ccb1a55dd7b57f89fb6fab8b413eaaa74d8e79e50. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USCGH1515862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bf33af363ce42d274b4f97d131d4392f3bfad7d7cfa29cc391102e1d932d46. 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/USCGH1515863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf77b4d858793202fd61c69312b5aed5d106e06c9f82a6c809c910468f0fd3e3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USCGH1515865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad63f66f536abb2ddcde2d6b114778ace49abaf8963a97850eb4a1deaa53a74. 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/USCGH1515869.
Lullabies for Babies: Nokto Naptime, Vol. 4 (Well-Known Tunes and Nursery Rhymes for Children, Toddlers, Infants, Sleep Aid, Relaxation, Meditation, Lullaby)
More Lullabies for Babies: Nokto Naptime, Vol. 5 (Well-Known Tunes and Nursery Rhymes for Children, Toddlers, Infants, Sleep Aid, Relaxation, Meditation, Lullaby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc311933d5062b420f778828e00282b8ba491810442a9959661118431c5ced32a. 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/USL4R2077750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea717004fa9a3c420d9cfe1a698ea1fd558c156b8ef904aa1e35bbdc747da193. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USL4R2077753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d708a5e888fcb861cefce6da2e05c8063ac9b6696d183ae2cc8ac1713b3cf2. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/USL4R2077754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486fc04b35b5b0437c5231401cb0fe2fb39d4ba5915c999990240162b936f84c. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USL4R2077755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bc54d11246359d1e0921e69f3fd33bcf9316c723f647add1734bc71931aa2b. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USL4R2077757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1783e0334002733051775d2df63459841ee6ef30956e59e671bbab3dc0591b91. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USL4R2077758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a075297316d4e3d9962083850f68931614c815fdf0ed6ac4788fbc01cdb887. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/USL4R2077759.
Classical Music Lullabies for Babies (Peaceful Classics and Well-Known Tunes for Children, Toddlers, Infants, Sleep Aid, Relaxation, Meditation, Lullaby)
La Bohème, Act 2: "Quando Me'n Vo Soletta" (Musetta's Waltz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98cde5809b7511640a994465694cee427d05bbcc08c576de0e1e6cc3d4d1edc. 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/USHM82196264.
Fantaisie-Impromptu in C-Sharp Minor, Op. 66 (Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c049e1b600734ca02c75dee7111212d1ac7acccd42f865ec422b9911cf692a. 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/USHM82196265.
Symphony No. 9 in E Minor, Op. 95, "from the New World": 2. Largo (Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49cb1b5f8195f362661815ba59b8776109f1028dcb1cfb7a5f678e7b6a47a986. 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/USHM82196266.
Symphony No. 5 in E Minor, Op. 64: 2. Andante Cantabile (Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2dba2fa25459a66875f563559f4de19c7e762602baab699c39a469311b05484. 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/USHM82196268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d87e8c6036edfc4f0ec9e9799e6e7d33ad70d819aecd71581e376754c530b6. 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/USHM82196270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4da704d94ae57105371cb776a5846261e9b19930ff8b052f02173a82f9dcf13. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USHM82196271.
Symphony No. 6 in B Minor, Op. 74 "Pathétique": 1. Andante (Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40c4bce348f763e816bcdd396b7fe472a4bf0a9f319f7be3ad860a67c778277. 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/USHM82196272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16380e69d1579bef8ae22887543dc759760ca2798c586261780266dfc7ba5712. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/USHM82196273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef1bc8657f1e23d4456dd69c056bc9f12c2a734926ffbe5b58161fcdd7b5974. 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/USHM82196274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0a35036735b59ae37089ba2546f7014873fbab6efb817256c62169faf6bd03. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USHM82196275.
Hungarian Dance No. 5 in G Minor, Woo 1 No. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6167af0f6a02b77982edd9983ce8419480dcc9c39a30b76d44693cb5157d04. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USHM82196276.
Liebesträume, S. 541: No. 3 in a-Flat Major (Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d7eb35202c172827dec31d176d68a638bab9609b82a5218b7d832f2f6c055a. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USHM82196277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2249806ba7c944b66cbcad5f53dce6a2c2235f7fc7c2d159e50c1ce172d57292. 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/USHM82196278.
Romeo and Juliet, Fantasy Overture, Th 42 (Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf2b4dfc61f7a34e15d0291e7fd5169d07b228b1f22a5c5756a96f76a3c2b72. 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/USHM82196279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0675f3cd2bcfdaf86f86c6ec6cbe22880d6e80a0dfd92cb4b403669d98744343. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USHM82196281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13273cf56ff472ed336fc5899fde3413a074703ab65aab4adf7fa31297181aa. 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/USHM82196282.
Piano Sonata No. 16 in C Major, K. 545: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3280fc4d24f7af792783c5c863146855a95ccb883df831860b13b271664e2ffe. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/USHM82196284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb4a6bd8bdb000b5fc740b9a6408b9295fe5fce03623b4e13ac86258da4e13f. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/USHM82196285.
Swan Lake, Op. 20, Act 2: No. 10, Scene - Moderato (Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f7c6c86c102f5a7dafb6b17ebcb39728ffb04cb52c9231c977801a0fbf4fbe. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USHM82196287.
Don Giovanni, K. 527, Act 1: "Là Ci Darem La Mano"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4490086882d33383d3bf07ba37e7966d2775ad13c01d502dba8639b96fb7e60f. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USHM82196288.
Symphony No. 94 in G Major, Hob. I:94 "Surprise" 2. Andante (Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d297380fd21037294d3bbc9f89e12fa9ce4269cfb5542bc1bdc6d19624eadd. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USHM82196289.
Prince Igor, Act 2: Polovtsian Dances, Dance 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61bd01eb9aa79722afabd909de08166aa106d1ce0e3ae62892cd27c9c9851be. 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/USHM82196290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375c042863472fad3d8131681bf4a8125f79e11f588c0d7bb1da7bec4be7bc3f. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USHM82196291.
8 Humoresques, Op. 101: No. 7 in G-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6582735405a6434c1e72e1a2ae707acf92fc25438aec5b90296789d7e88e41. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/USHM82196292.
The Sleeping Beauty, Op. 66, Act 1: No. 6, Waltz (Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99df0c2e24e2eb51b6693e25e76435ce2468eb1ba98be6a87e539636d18c4659. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USHM82196293.
Lullabies and Melodies for Babies: Nokto Naptime, Vol. 7 (Gentle Tunes and Nursery Rhymes for Children, Toddlers, Sleep Aid, Rest and Relaxation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bb5bc3a301991726618fe4824c25f9f72cdc69b347d0ef8acb2e7c0ef56a25. 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/USL4Q2207954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dff2d1159324fdd8fbdb74ea81c4636f5ac496ae4bc7c78d81576db86c8ccd7. 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/USL4Q2207963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6db53be121b885e42fee2f47585de4687fdc3b813f0f3bd1e666f2d1eb86e5. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USL4Q2207966.