thumb|Commemorative plaque for the French victims at Hinzert concentration camp, showing the expressions Nacht und Nebel and "NN-Deported" Nacht und Nebel (German: ), meaning Night and Fog, also known
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 0x48c37285bedee40f3a57fb1d32e7063fc6ef93b2de9bb89c0a7ec7c1eee1a4be. 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/3bba6a58-3b1a-48ad-97b9-83ffa4d38e0b.json and https://artists.proofprofile.net/proofs/artist/3bba6a58-3b1a-48ad-97b9-83ffa4d38e0b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Down To The Sea And Back: The Continuing Journey Of The Balearic Beat. Volume 1.
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 0xbd7e3d3b40927f637a6db779aab99071d4be5656d56152f77e8f6543b72629cb. 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/GB4XK1000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a143352570b318bf41ae516a46bcf47e361a669a666507f04fc94bea06f8ddd. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GB4XK1000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844264ba6b6724ea17748a6246aec40a356a5a92c8a71170cb0921dac7ba427c. 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/GB4XK1000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52f15621d0ba5822df6beb5e504293f4c1f8d631ecc6619a1552fef1fe2a0df. 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/GB4XK1000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76448b6bbabe861da4d2b347025bb8c89f727538e5c1eda6d4b54cc82592c53. 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/GB4XK1000105.
Funk It Up (David's Song) - Special Disco Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ebabd177f215abb461163168f989c0df10ea92b0434794039e7e88961569ae. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GB4XK1000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74c2129eadea3121851ee280f8dcd525e6e5e5668eda4bc84c8843667fda0e3. 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/GB4XK1000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0c14c96ffd526f2fb29468b7c427af43b05d5ab9c914329efc86c44531fe92. 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/GB4XK1000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5d9e0426c20412beaee68201d3f9f2e4924f3510ed401962b2303a59e7e2f6. 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/GB4XK1000109.
Draggin' My Heels - Special Disco Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ebe54b4c7033c842dce9a92de03ec2c49902dd9fc275342b73adb858a8c3045. 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/GB4XK1000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f847247602ac773551d6369f5bfed8f0f43f8c653328b934b53c9cd42e571e4. 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/GB4XK1000111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779a988401582a0402e19a5eeaf18cdbc15beacf08f40120fb73bef70056bbf7. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/GB4XK1000112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ba3e5b9c1e39db5dadb379cd28464ec2ad9e5af313ca4e99ceac927965e740. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BEI010700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306d3101be74145e6754154bb6e1431a4065568a26c7f27989b5f09e707821aa. 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/BEI010700012.
Étoile du nord - 2004 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b2cbbf80dee779b7d7a5affe897bae680cd11c593ea2a66590d9e8e6e434b9. 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/BEC010700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8dbaaa8c3a8b5b913c28b710362276cfb8582e2a4aae410f9bbf05fecbea225. 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/BEC010700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7423229dc0a0129aefca6dd0cdac9cfa2173a4e1d9a5c1030bb042388db5d980. 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/BEC010700006.
Movoco Synthaca - 2004 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f2e1bccc93fc51d9769d4a33e46bd9a8f993cbb5618ee25d54ce6fe044a350. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BEC010700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37efc084518551c4ec0a19653153e4e889bd8690a073e991f48fbcc0fd647c46. 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/BEX561100090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52103e2e9fb0d6d94c300b17e04a6c0cf6c928359978f4df4c5613df3f58c411. 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/GBAJH9900474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa4dcd646f885c98c0f2dd366939ddcd7cd7cf6386a9528665d7d685e7aa58f. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBAAA8800237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa468d66fe7dfce6f12eeeb9ba771434e9f1fdf20178031e3525aed93d8590487. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBAJH0400898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be5c115121cdaf12a1c0beda6f80e0f16e1f0dd5c365e0c9ae84353fb7abcef. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GBAJH0100341.
Messages (10'' Single Version) - 2003 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc934c0c9d56c83e9b3d5fda229fadf386019499327818f933508ab95a6fbb10. 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/GBAAA0300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43c0e4bcdc5f9c0b1314a00f9c4b60bb24ca280229d44461583de9000443545. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USCA20701531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4874da30a5e3d532ec37cdf2f16dc11a3ec2fb038696a39ec7b67326b71432ac. 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/DKABA0800200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5963d262f0ae28ad9f9e0ce0e48bf2ba68bd983936cb8f6b799092ce117f7359. 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/DEA340401578.
Things That Dreams Are Made Of (Instrumental) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef61218ddb95033a6a1d64e771d2109d6472e82afaa375289de226063332cfd1. 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/GBAAA8200286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb061339f36d3c22ff5e5d04067087bace287c9e6f29a78d744e3bc859c153a6. 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/BEC010000123.
Heart Begin To Beat - An Extended Mad Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9560a4de9ea84772651cc905e2272e21172c70af3d15f75a928cfcdccbb92c9. 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/GBAAA8400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4dd44a79c9e183333ab044e27a2bf8a036a3660c7d5638d127635137c2508b1. 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/GBAYE8500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa9d94239e7830fe531b607bec6f3b752a45534bd841f62172cab6ae05ab408. 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/BEC019900351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4c23a25923363f27d162610be177871d166fba0259e0ea5bcee3ced8cd23be. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/BEBB72000446.