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 0x5ae1a174d92de2f7fd75fff92b8c590f39bd3a0c3a85f5a562cc8dd17e03f91f. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ffc8b22-5828-44c7-9d78-aae5ca602c01.json and https://artists.proofprofile.net/proofs/artist/1ffc8b22-5828-44c7-9d78-aae5ca602c01.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 0x0c9b4ef3f88e360b849defac7de3732349de15482d8c7285876db399fa2ac5da. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/DEMF31400083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e732ce1c19f59d334a86d615cc8edcd4f8d940010c8196140e5200bc87f2c9c. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T13:26:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMF31400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a1648ee554c4f56b3f7122a681cda98487a70fdd234ddeb52f669fb602df2f. 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/DEMF31400102.
Wiegenlied - Guten Abend, gute Nacht, Op. 49 Nr.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0bbe183b8323ea70a9f0dda3755fb9594918f616247c27bd36b412da8222b5. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMF31400105.
Klassische Musik und Lieder für Kinder, Vol. 2
Freude schöner Götterfunken (Aus Symphonie No. 9, Op. 125)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa805514eacdf49dafcb294520f995c35c9401ab53e893b005115cdccb72adae3. 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/DEMF32000118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedab629da73b1971123a0862c96612edf1fbb11bf7e0ec421bf0e3a49e42a6c9. 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/DEMF32000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a70e978b22025151467bc22342ed36adccf0669aee000dad8a6b1cb3a1d3d0. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/DEMF32000106.
Frühling (1. Satz aus "Die vier Jahreszeiten" RV 315)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff78a3da8c7d4d68f65081b2b2adb579cfbde20742042e2a9fd473c851f4a4d8. 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/DEMF32000074.
Frühling (3. Satz aus "Die vier Jahreszeiten" RV 315)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea193898901a006c15928e8e2fed4c809676ca24a27489d825fc4eaa083f3e36. 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/DEMF32000075.
Herbst (1. Satz aus "Die vier Jahreszeiten" RV 293)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f07d83d6ef73ff91ab27464957958960d3226ceee74b0a04a4aab3ae04b486. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DEMF32000076.
Herbst (3. Satz aus "Die vier Jahreszeiten" RV 293)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc881b95eb9fbe7c585703df4732f0fa0c81d918500ef41b23f793aeb0197d80a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMF32000077.
Winter (2. Satz aus "Die vier Jahreszeiten" RV 297)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736772371a3094d7e95e58eba6f4109297bc96fae9e89a76ec4a7b68187364a7. 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/DEMF32000078.
O mio babbino caro (Aus "Gianni Schicchi")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe415bc9bfe9f3a1e3d40e948241d8e54e87cf497df8217a1b317e7f21dada83c. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/DEMF32000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b8627efe3c956cf182c1f6b0e0400f6740b838768e3867d894986dc3a3decd. 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/DEMF32000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee80277236aa56621cdb25df5b26996344c44eaf66051efe26a2247747eba05a. 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/DEMF32000083.
Alla Hornpipe (Aus "Wassermusik Suite No. 2 D-Dur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4946c0f819180fa9cdd18f8555688cc807ae911bcfbaab25444b0cac93f025ac. 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/DEMF32000079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dda5d615fb7285ab186ef035f6f6ef557488eff3e98dac9dfe46c8fffe7dedd. 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/DEMF32000084.
Morgenstimmung (Aus "Peer Gynt Suite") op. 23
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da3d86e00d5d1edef0cf2833727e6c617650c949ebda3ea81f0cd6af6d7e9ea. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/DEMF32000064.
In der Halle des Bergkönigs (Aus: "Peer Gynt")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81bb27b25f97af6e41b032672d25ab3ac15841866d76e941eb43544edb3199bb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEMF32000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bdeae3d2662aa77c639fadf207d24cd0e2d1f29fa4504f182b1668f55b17261. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DEMF32000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4494592769ba8419d9657b68c9b9045b165cbe4b540d776f8bfd9d2c607d03. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DEMF32000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a719ffa6a09f8640971d159736496ef5477340642f5ebd7d6777f86d4ba5fe0. 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/DEMF32000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0304535e3accf034a45fd22a8aa5ccaedb1a656ee16999d3fd1e52931beb4327. 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/DEMF32000065.
Va pensiero - Gefangenenchor (Aus "Nabucco")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb980f5df213d0437c636f3659ecad9184ff38299043c9dbd9cc7f6d4119b7720. 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/DEMF32000073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7696e67c9750d1f21f5bc1aab5e52bfaa094b89264bf4906581a14ec2fac770c. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DEMF32000072.
Menuett G-Dur aus dem Notenbüchlein für Anna Magdalena Bach
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964479d4cfdf97f3a4dc2c96ec25a3455b058d3c28963dda1e907b8507733df2. 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/DEMF32000082.
Hochzeitsmarsch (Aus "Ein Mittsommernachtstraum)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac9f02841c28e43de3d1ce9555bd256eb61224e94e5c681b7832b49d5aafc01. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEMF32000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95856c51968d91b99a70f553a282c23337786a4b76e53692834203bc7b0ccc4e. 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/DEMF32000120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edf11cbc16ae5cb03194051c6272f140e6bedf14d67332d4147f56ea370fe34. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DEMF32000112.
Mein Herr Marquis (Aus "Die Fledermaus")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de54abd6de594199a37cb233b38b7fbc6a6123752bd3db64170fc0bbedf5118. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEMF32000115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba4adf21e72af6978c8251bb34daaec4aa39cf41f25d0721b1df5568dfb409f. 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/DEMF32000116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fd5f44cbde783e34618bc5f6a4f73a9a775519d3b8b2350801a5dc4f5755db. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMF32000114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613a21171af554997eac286e52a97b28c06886b65929ef640c79940fdadcaddd. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/DEMF32000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ac9e761da44206aa2b5f50350b150a5c3ecaa65cdbf8102deffb9c6df660fd. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/DEMF32000066.
Romanze (Aus "Eine kleine Nachtmusik") KV 525
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a34c7ede0463499e7ea73ee5aa2d25063b6c52ab78ea0f56c9f8726275400e2. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DEMF32000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35de4e84a06bdad72ff6679cc2f1fd5ac7a7d18ff9b93ce2e326754e9908b28c. 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/DEMF32000117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9fd7296d5bf1f68c0b64618dc2028a66a9dc4e1b8ec5d707eea3bf726c8e11. 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/DEMF32000093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5a738545481a8b8b48e860e3403a3666a14726741900aeb2bda4bb516b911d. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/DEMF32000102.
Land of Hope an Glory (Aus "Pomp & Circumstance" Marsch No. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fb218fac03d96fca18661134e4c7cddfff911535ba9fa80b0af42edbbfcf4e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEMF32000092.
Solveigs Lied (Aus "Peer-Gynt Suite") op. 23
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09a40990b42750aa482d5d5aeaed3fc26151ca0e2c0250dde5179fa9ece2bd4. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEMF32000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5f40f21fe5c52f228bba8848cadc6605ef65ba386047a6e0322c0dc506e6ff. 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/DEMF32000111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b21f4c380c41bf9cf5217118c544b4c289edc777466c44fb4822ec0ced73fa. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/DEMF32000113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84dcc9395b51bad5b48fa9adbd590ff3bbd4f09542df1a1ab34c9e9092f01f3d. 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/DEMF32000069.
Der Schwan (Aus "Der Karneval der Tiere)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9ecc545356962e7e596672a203bbf7f22293ae9a273f36ecfcad6c291c0b19. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEMF32000070.
Una furtiva lagrima (Aus L'Elisir d'amore")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e1c09fb921dbb5895d0a66a8d597e309488767dc726680d3b85a502f34e0f1. 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/DEMF32000085.
Die Wut über den verlorenen Groschen, Op. 129
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b585a13e39803d961686ef20999cb0c6496f71e6f683018140c02faa1a1bed. 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/DEMF32000086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9256c9b9972ce2bdbf76aad87f0d07184f58a14fd3680db1ff504e26898d2061. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/DEMF32000094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff9cad49cf7aa6ef6ea785b9fb1c5f4f458816f2bf1aa27c2931efdb0c96534. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMF32000096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b2927068bcea9207222f6936e89d06ee5c1357e9585feaec77f1f7ea94408c. 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/DEMF32000088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79420a3fc09dc313effb75e2b963d3a7c30280af2d88da77d9d2492b7f5f2025. 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/DEMF32000089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6e778b07803612f1d376d4b42a3f4adcaa8ef9edd2ba3e7b79e8c06b35e0a9. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/DEMF32000091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15b6720d6cf6e7b55f5a8138d3113348636fabff7f5dac44938fcd265405c71. 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/DEMF32000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbad1e7fabe73261fe4cc601b4d44ae9950db315601cf0d3bed5eee0811f7d69. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMF32000095.