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 0x0bab556dfa046715d6bc90f48a1a9a68b4a58e7b5afc1431d6c34a87c317289f. 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/b5028ca4-e082-4630-a2d1-3bca1efa6609.json and https://artists.proofprofile.net/proofs/artist/b5028ca4-e082-4630-a2d1-3bca1efa6609.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 0xd1c05c56faa07f50ecea153488b11a7d42054605cb18b2dcad841e89c4bca15c. 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/CH6541810890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009c9eabc8dff2431665f245dca902a9f43f978891069af1bd3434332f2501ec. 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/CH6541810891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785ccec40c1ea4f465b92976da0685a3cab01107cfd6f794f5671331c8a9f3dc. 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/CH6541810892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5506c313add0611f92c5eb28660d306f92c131808e6817bf97ed0beda7a4030. 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/CH6541810893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60680a6171b36cb0d0255a9729f6d328218a00f55c5948ed04603f4a876af63f. 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/CH6541810894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26dbf627ff7b22a53afebf2625357889e7d53c0fab58d5c1f5f2603ae66a559a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CH6541810895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c5aec2a6d5d59e32d4e8cc2fff3d59b3b72e8f08d29827be65b41c011aece5. 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/CH6541810896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516a955431579774ff282d8b38f73005f1d4d0ff34ea906a686e82f5930df53d. 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/CH6541810897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31445297cecd004805ddf1d7cf8d0eda791327657fae1168f44903abc081eaa2. 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/CH6541810898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44acdeb6bcc0896aa44f788754c299d5a3dd312141c4c2de2eb061ab3cc569c8. 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/CH6541810899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8304c16cc3bb7227f2d828900c4670ad6ee8c50eeaa1582cc81ecb0d46c215. 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/CH6541810900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bd05b991620a9cfc4f0a46f8bf422a59108eff3629b111fb959492a4856923. 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/CH6541810901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79626e086350ed36568ae92ab2b68bcf79be500e121ff8a96b4213e18d3d0533. 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/CH6541810902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf652af20e5219cfbd13bd1aef64831a27bc2aa6e130cf4fc3ac0badded58343. 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/CH6541810903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5552febdc3b6fffda8a056f5735a5cd7d983742757e1e5481841952070b2974. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/CH6541810904.
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 0xec1de18ba82f526cc58c8026daec7c618bb6b35bc207b6086b75b1c33c5aaa88. 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/CH6541622366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30ef84457fcece01ceca6fa39f47599b0f5d4a6461940d49c261127fcd6fb1f. 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/CH6541622369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f4230dc6d07df9d1cba80f1fbb56c669b2f4c350e99ecb78dc61df74a968bf. 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/CH6541622370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137c35a6f1410028dc7a379bf13f2b0943136c4d82c70e5bf3767bcf310668e4. 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/CH6541622372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bfc5ec929c4ad439e319614809fc74912bcc07d32dcef9a06132cd138308606. 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/CH6541622373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82365285b8f328ff001818523c4ce54787d603ac80c1fe403f1eb12165575f9f. 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/CH6541622379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2df340102ecf237a66d99902b569d3a5a360aea4315f5398190955bf0ce4c2. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/CH6541622365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1046ab5c9d57728b148ecadde0865d6408ba76beaef73ac61d615cf9dded06a3. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/CH6541622367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa7435a522612e514d9ec80fc0b909caa1ff8e984fe94a8afbc154069feaa9e. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/CH6541622368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf128a3620e77b2c9722c862f17060d4931a7ac61222f24c7d90cdf8c61dcf891. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/CH6541622371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807f48f12772f50cb3c184e158d8035c5229273bdbe097be22c960d884c6edf9. 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/CH6541622374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018781cea2ae154097a6d981eae912364a8a666a284236e597ebce0c01fe4652. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/CH6541622375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78861412e9e28c6bfd5fb99126ae88f881e5d126653ed7962b2669dd542903c5. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CH6541622376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6865e2cfe66cec7a8c7e13ee52e8f1110353323d7e39401b7f3fdbae27241a60. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CH6541622377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9406b3e6b666eb5848b2f5ff74ffbedb6a758939c493e2871a051eaf86edea41. 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/CH6541622378.
Sex, Drugs & Blasmusik - Herz, Schmerz Polka
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e48adee84fda41730740fef831502b20349aa89fb94e4c3b59035a98d18c6b. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/CH6541622380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0bef3abd582b3f52b2b150ec71f53f019e29e20aca67fffc10ef50170c102a. 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/CH6541950879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4835168204eb6e317ed7a93d8ae7d706cb18710a92e40146793c41af289da21d. 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/CH6541878399.