Sophie Hunger (born Émilie Jeanne-Sophie Welti on 31 March 1983) is a Swiss singer-songwriter, film composer, multi-instrumentalist (guitar, blues harp, piano) and bandleader, currently living in Berl
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 0x29d58f3c9739e3752b8f49269fa3bfa6b8ff6fc3007d1cf144b7a23c87c8971a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5853aaa9-4a34-4c47-8a3d-35da999fe4b7.json and https://artists.proofprofile.net/proofs/artist/5853aaa9-4a34-4c47-8a3d-35da999fe4b7.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 0xb6ba2f9da46c55b5afc1ca16ea266ae2f50922b3279abfbc05e3ca520cbc45ad. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:00:10Z), 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/CH4930800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818bee0c4bb2eacebbf2c3efada895a5deadc5b620dbc49c8ed463673590a856. 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/CH4930800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810b273a725ab03165efee138ec348dd079d581e512beca666a807afe712dd2a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/CH4930800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db4878cbeb0b2ba3905efee66a43e97d2655a648f539283a6f390e842affafd. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/CH4930800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f50b5090cfcb955134b31195110bb459bb206495515b2cfe32ef04c2f57262. 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/CH4930800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcaea9688900fa36c1d3cb30eb82419e21c9fbc7b8f99f22f1b6ca67aad28453. 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/CH4930800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ca31bb1c375fbee88af5f3c97a640bd1fbcc2fceb9189cd79a5aace3aaad1a. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/CH4930800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23929c8b3a08d5cc0600abc76ba6d00c088a3874d7dc8b4a6d939c7b7cb167b. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/CH4930800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae7c465b5b338a5f9901081969bcb5ba5d63eea5a0597981c584be21eac4dfa. 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/CH4930800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c0d59f8ad197f07605680d2e3e27d17112c07d98592fd0f622a6762b0602bd. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:25:42Z), 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/CH4930800058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211be5f7b7f4546580ba9694e62070a6eedef858137da3210ad889dbb013ad9b. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/CH4931000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de1217f6c46a36e61c4ca40a1a8d0a162011ce77d96d1f723358569db006223. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CH4931000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909fe41bbac83d8d41b87c5fd464d34cde776b45e5deff3d1e77ac39c3e0d2fa. 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/CH4931000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a4b75bc7d562908933fe0e07b3c5f185cb2e0cd5c1b7bc983628328b07ab13. 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/CH4931000024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691a7e7df6bc0e5183567ee3b7b385cbe487415ce1e43552fbfc576fb0ba139c. 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/CH4931000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467b8497328ef1b81bc51a288af1040581752df81d0af0b981adf13e68a75dec. 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/CH4931000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7260ea514ce44fbf2a3ae9495c0d703c69693fb11499bb23660909e6fc85d867. 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/CH4931000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef13c71465195254ab04960475a617793694edb0890c8c6804b810f144b115ad. 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/CH4931200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe300248df8381b3ba7cbc0a31ba6999ce25f578461b3ffe0a3d9d2c22e5c079b. 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/CH4931200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9c57b9abbac39b657fc4a29ca3d8b881898cfb30ce1db8f5d4f44787fce948. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:57:37Z), 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/CH4931200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5476e0ee1c7559c3d0f70b3dad7fab80bee10aac19c4ee7030ab856788323cb3. 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/CH4931200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeeff947e456a474ca9a82026f5a24020ddb7b6255d9c754a00b9a2f2e89a382. 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/CH4931200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd61e3f4302564a0929db002774130d09122d784193bf9747a469910f49f340. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CH4931300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed1183a9cfc022bc359d0ac8d06dbb6d38d4f99dd14693e900630b62ee8c743. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/CH4931300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015c9bd3507fa62fb4c7b359ea13a104a783788907915f312c1f431114c9aea1. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:06:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH4931300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9163291edae4f7cfea97735e3dbb2ad313420c61b525cb5550625407250e2e. 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/CH4931300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785c5edd154db9ec65f9ad3e0dd068acf3d8be2bfb4d5983e90bc9e750367500. 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/CH4931500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b744af95d669508a7f663615d0ce8b0053b3d22582cdfebf9b3c6303b95b68. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:59:07Z), 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/CH4931500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2a8727cec0fedd81aa7462a1fa3b7ab5a9f8b44b7e4cff6ea09e65dadb6f4e. 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/CH4931500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bda97a62dea42a4118b78abe288fe67c2d8d590979faa9afc9064d777caf593. 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/CH4931500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8419862fbc205beae6aee95700fb51aae3b1e3f460c8ac769e5dcf874af43eab. 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/CH4931500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77ffb818f1d91a5ff4b6cbe25d740d21c4ba416db54fdf693d27e2140857e01. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/CH4931500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785c5edd154db9ec65f9ad3e0dd068acf3d8be2bfb4d5983e90bc9e750367500. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:51:19Z), 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/CH4931500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11018dd4bd0aecbe8f056423f386732ab7bc0d767248c11385e7dffa47198ca2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH4931500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8feea4c6b8d2a8d1827920ce14c9a62f7be86c3d7029de1b0b9bee205c14b3b9. 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/CHD581800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ffc603c91f0fba78da200bca0c01f2cb636cb6afb5a3b56394fc96ffbc7c5b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CHD581800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06eb160a2dc8f3ac0936aa7f44edc283149c64720e6b7e7eeb028c4ac8e702c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:01:55Z), 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/CHD581800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf90f0b03fa597261e2c2808f500705b976a686a7de882f767af8b9ac91183b. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CHD581800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596c2f867a4b431d86d5e5ed8ca7c6db947feeec078e916a99a73fd1d74fdefe. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/CHD582000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf85c8badcd94aaf149796f3a3da4e1d2ac643bd3d21341be53d5d6bfd92ecd. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/CHD582000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f02ad13375b48d074b80f9f53eb07126d34f1cbc369f4f0bb4609753292d2af. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CHD582000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3242ec7509683f1535414148f3350771c41a1365053e0613a63ba22644caab. 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/CHD582000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2491ff0cdc0531a048a43ec00c789ece7bf926c9c5ac22be7239aae7561385b0. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/CHD582000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886e4bdf4e68621260dcf891876fc0abc3cc4e64aa84ad3dfc0799f7e6a82792. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/CHD582000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78b75b92d05748c15a125b60a8fb6e7c9e311d493c1be9fa889ea8f1be211d8. 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/CHD582000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdadc15bb951c6c36f6a19b2f665cda725d214a40b9563ded4c7ad4572af06d82. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CHD582000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28185da62047b9b9f9e2e204f88bca98e662c25fcd27b5a5471ea693982648a5. 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/TCAHK2368087.
Un Sac Surprise (From "Ma Vie De Courgette")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0ec4797ac136dd908e45d68f546968225100b3c7f7c74756626d289f418628. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:22:55Z), 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/TCAHK2368136.
Les Pas (From "Der Junge, Dem Die Welt Gehört")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff260efd4d5414b8f0668732188019a8bf168d83fd3bc4778dc9941d3aa6420. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/TCAHK2368175.
Je Dis Oui (From "Der Junge, Dem Die Welt Gehört")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680b8be246cf4f986122d113dc9d2e04ef70327bac6789185c96c44e34263321. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:45:21Z), 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/TCAHK2368176.
Totentanz (From "Der Sprayer Von Zürich")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4249c218e43752d6e0df4db5b4e425c17f42b0ebd2d9d83a8f29a70b5d62b783. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:00:30Z), 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/TCAHK2368185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8747c104de2e2b1e4ee9e96a959108ed00aee4de5c154f3ed879d4ba3e1f98. 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/DEN962030315.
Aura feat. Sophie Hunger - Pan-Pot Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda173a02997f15a64637b88a42fd871ac40b51914e63baa614a39b09928e4588. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG932104299.
Aura feat. Sophie Hunger - BAUGRUPPE90 Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9bf821d7049d481aa13efb8cfaf462d738f655d24507c28fbad14d0090426d. 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/DEG932104300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf118a6cf061349c53f7d8c6f5f75fd46966776ca7f2f7d8ad0f02ae28e4e0420. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG932102548.
MTV Unplugged Kahedi Radio Show (Deluxe Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618b1e8256fa4142f389f517f0434681bddc7f2bb4a603ddadb8d169e3abe69e. 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/DEUM71303831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28af74a8ceb85161433dc7498bb939ed6f5c962db073b1345f2e05c77fccc637. 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/DEUM71303832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28af74a8ceb85161433dc7498bb939ed6f5c962db073b1345f2e05c77fccc637. 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/DEUM71303832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476d75f6e8bb888d34bbcef47abf20b963a23918e77d9ec5fcf486f71b7e66a5. 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/DEUM71202269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c0b72b4725980cdd6f5116965f2975a8af39d4dc9faf38dade9a8beb6f61c6. 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/DEUM71303097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f3c6dc5077d7ceddb525f693bbd1e442dd3b400823d1b1b95fcd70d2245fb1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM71303143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2560ec8943ed2b6f212c4faf026a685a7433d239ea18b2d39cd2959ff801786. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH5170900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476d75f6e8bb888d34bbcef47abf20b963a23918e77d9ec5fcf486f71b7e66a5. 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/DEUM71202269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f3c6dc5077d7ceddb525f693bbd1e442dd3b400823d1b1b95fcd70d2245fb1. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DEUM71303143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8977f8cb51a9a3f3ab8071ff33188e0b6a38bff082179598a6cc6740531ebd86. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T15:40:01Z), 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/FRUM71402273.
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 0x56b426bfe930458ade5bed25d567fb482269b0c63ac3868c7829799d6297147d. 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/DECY52400727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62dc66570fe3d5b772d15bf4fa1b1c77c8e4a8f1fc5ab6574476a1b70ecd803f. 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/FR6P12202830.