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 0x54b226fe516205094fa4def62ceda31a8e1b6b47f22d3d73e9ed219a91ac2161. 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/eed30bc6-4e8d-46a2-b701-cc9065ecfae6.json and https://artists.proofprofile.net/proofs/artist/eed30bc6-4e8d-46a2-b701-cc9065ecfae6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Plätteli für id Böx (Singles Kollektion 1962-1991)
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 0x62af25ec83e521994a3d97df295776efcf435c8e29cfcbea1418620eef7991c2. 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/CH0250744201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70142bbd8a233f527262d154273281beea9e07fe49272c8f074c96fc2f72a5b7. 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/CH0250744202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e208d2843743ae5af7fbe863ca22dfe5f2cdb2c1f5a0ef8cc4b80ed831cc21. 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/CH0250744203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ae651bd4329d2382d14f789a0530815155f6ee494e44a2d09123843d864f9f. 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/CH0250744204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093d5ae4989c79caebd74fb6fcf91342f8eed365f12e94a6f1f12740807f8664. 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/CH0250744205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926166b0c8f53a8821a18f1dde940f245cd1f1e116e8ba28d31cc045f1bcbe95. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:49:12Z), 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/CH0250744207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578d3d19efb438cf3cb1c4609b994d108beec5bbc8404579bb90faa275435ee0. 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/CH0250744208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefad7488a29a2343c9d673edf0f311731489b6591ab61b7a99a0a38ae6747fac. 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/CH0250744214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3780ef57883deba16bcb96eff06f84ca5fd10f9ee02df25a7454cbac3e103d. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:49:09Z), 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/CH0250744221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4b86f18685a9779734f7d8f9b3f0238cceacd50b0cef9480a280aa2ec86fc3. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/CH0250744223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9adfb20960db5c183669285d75230117c436645a5c52e25d4332b888cd999db. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0250744225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5410a1b5e0a45062d05e9f54dfa665f2bf3b421a74c5acfff5d6fe053a1ed9. 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/CH0250744226.
Bim Sepp im Schächegrund z'Altdorf - Walzer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1852f46b6cda78e07da1e463142aa7eb1f78611dce8b92760fc3a7fbf0da2537. 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/CH0139800037.
Glanzlichter der Volksmusik - Dr Brissago-Rees (Schwyzerörgeli-Duo)
Schwyzerörgeliduo Rees Gwerder 1973 - Live im Rietberg
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531b49a31f6468adb891408e87c1083ba150ca759a79f54a1645cb6adef0066d. 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/CH0250743201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a65b02458414c3246b223bc35a41316481d5f6f3ebd9a36efd2a85df7c42528. 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/CH0250743202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee10adb8966a0843d1524ed50d7c365244a7110d44c829723e69077a03678493. 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/CH0250743203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33b1badd170da4f6b12bcb35b87f1b2d535dd5b42e13ccfd3a66a33836c4ec6. 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/CH0250743204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65e466aec3558505dc1aae61269a0220fa9d776f1fe383cfc32b1c5acea83a4. 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/CH0250743206.
Risi's Abschied vom Dürräbodä - Walzer [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1d77db9b63c12e46ccd2421446cf77978dc0ff0e3fb992b2756a97e82cfdcc. 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/CH0250743207.
Am Eidg. Hoselupf in Schwyz - Walzer [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf4443032875f27fadc05b01788e056e4d11e5d188bd1d19b9de18991871e17. 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/CH0250743208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e807e2fc179d59f75ddfd127252283019fe696cf846fbeb4de05be072618a89. 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/CH0250743209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354c1e5b88542fbd31dcc747aeba14c29e288d72ad76edfa69ca76b69f819e3f. 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/CH0250743211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fef5d07e7d932e0cb641b9a1c7f3d732c1437b08172c7fdca449f17f4e37f5. 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/CH0250743212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895f7b70aff5e680032032b969ec07e9c388ac87c82d914913c4bb175eafc0ba. 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/CH0250743213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8219b98741bb223c4d70246e8e86a2a92171fe54e0fa2fccbcbae021f6430d4. 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/CH0250743214.
Schwyzerörgeliduo Rees Gwerder 1969 - Gast: Thomas Marthaler
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43fc71b4285490c4e4b2ddb22ff532567483c62c8a599403c7c4b1f857d766f4. 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/CH0250742201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b681fff52ebabb84c19f63cc163da792e6362b8fb1a315079248c8446b888b. 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/CH0250742202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cc9c896dbb8f324fbf0fa0fc2489f5be58051b489e8f11a7529b159391b52a. 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/CH0250742203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79905bc9d53ef1f46a2d6b318d952b3cc58836fa9d1c3ce0b970f841ea8cc13. 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/CH0250742204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f2d60b2ba93362a8cb8e0ab95a1b4b63a837e3c9d32292b5500e07ebaf96ce. 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/CH0250742205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5481ba3256548a19f2894d037c0e5bdaf23a6b8fbed154a4320e017b85e3f543. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0250742206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eceea45f6a80b1fea747b8e8c03d649c898ac258b3fb40d5d3e6eed57cb88ba. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:27:58Z), 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/CH0250742207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc870f331c6e6d6cebb6743bd2fa2d2f79c747824ae07420680c93c2958aa26. 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/CH0250742208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709f9597a52294f571ae0df48c87980de7c19b314dcd46d49639950290211a07. 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/CH0250742209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b97c6987f1d72b0503708e15f7ea1f6a040d8d6f59432ff388b709dbf3e3e47. 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/CH0250742212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1daf713c77dfa8d44080e66cae7ed7e48eef39d8c625e71afcf15b769394952e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:26:02Z), 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/CH0250742214.
Schwyzerörgeliduo Rees Gwerder 1965 - Gast: Thomas Marthaler
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc512e1d019ebad529ae5c621cc5b40934d97f56c81be1102bda0ad9accb46f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:28:36Z), 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/CH0250741201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1a4ea6034a29a2962fb1bb03d1f9a49f7064565a20dd5f2e43b9dc4040b9b2. 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/CH0250741202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7c3cc95f0f5110238df11e579bdbd93179225b3145cb1a517863eb1d31f4af. 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/CH0250741214.
Ufem Schwyzerörgeli (Innerschwyzer Stubete)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d28aaeb0d319a589f119104ddec4c566a4bd07ab7d45e246c3fefc13f379ab. 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/CH0259555220.