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 0x48749a1ef2ee027039625b3d183f74b1f0541198e021a537169d171e9a4bf2d0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcfd59b7-2e83-4555-8e18-a88e024c7871.json and https://artists.proofprofile.net/proofs/artist/bcfd59b7-2e83-4555-8e18-a88e024c7871.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 0x1005d56420b80bb166bae06519fc6460834dc3dfed7cefd9abb0ee8cfd21195b. 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/CH9961300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35604fccdef16321589b919090778a47d47d7ef5f49c0f066ec1117ef332ed55. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CH9961500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18e6c73ef38570be9eed104d9bc852d6c6d6c64bcdacc8386467b9f6f3ecc85. 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/CH9961600202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800535c1a8ad4f80fad2c26faa86fefc59525bda98eb6d507c64c5cd890738c9. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/CH9961600203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0426dc3b0552efb9cbf033c108f87bc1cae08f3424283f70b92e233f9e9914. 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/CH9961600201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43f57dd65321ae8d536e9ab6313d87747135d354be89baddbfaa9b8187e83de. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:50:04Z), 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/CH9961600205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7bf7f84f9d44190a36367acf195eb0c983264292dd650a144ec2a06d5094e9. 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/CH9961600402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99aab28b9dae5cce6a855dbeb43bf106fcdec70d198862c1b78ccfa9dbea041f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CH0011900104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715a523b7c1fd253e5da360292598d484b9201ee709b61333f37c6eef980814e. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CH0011900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4de642aee20c4641aae41c0628d8ebeae3ce9dbabe1550402df17a0c45d9f5. 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/CH0011900106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715a523b7c1fd253e5da360292598d484b9201ee709b61333f37c6eef980814e. 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/CH0011900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99aab28b9dae5cce6a855dbeb43bf106fcdec70d198862c1b78ccfa9dbea041f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CH0011900104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10094c902adbe95fbf25f6311f38217ff998270869708768d46c8cf6b91f492d. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/CH0011900111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161fc3795e23cc53fe9341f1b11ffb792032b21b9f18ec05233af24999b3fb18. 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/CH0011900112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb47f5180eac6d52a8c4a6b4de9d88c02d0742285f10f7830825adf23b28aea8. 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/CH0012000093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e69f8fc82f5788d6272004a9ae463cfda6129050f4e26417a2d4767050be9b. 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/CH0012000381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8a7635c8e613295a4a9f02efb99f9ed8eda39b3c7b774aa9936b1ea87beb97. 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/CH0012000382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3937aa96b83f52b04c50f5872fcceb392077d4c12e8fb771619e410bdbf460e. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DEWS52100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a083b25cda079c41d60a9ba3eb4e0d87e6e1a887f6ecef83027b585dcf3ddc4. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:35:02Z), 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/CH0012100218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc438e9bd00937881fc920e9aeecd645f5175fbf5597a7bc08cf889168dcac651. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/CH0012100213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc438e9bd00937881fc920e9aeecd645f5175fbf5597a7bc08cf889168dcac651. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0012100213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e69f8fc82f5788d6272004a9ae463cfda6129050f4e26417a2d4767050be9b. 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/CH0012000381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca29db38529d7b84829ea99c71e2175007b381833faa16d6932211bf038570f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CH0012100215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5322b48db84461ea78c589dab6229916c1f7a35808ad6a7d2039b77e47ec59. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/CH0012100216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efa28e0742c4b5f2a57854a8894550648854bbef67b8a1958c81d927be4e921. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/CH0012000291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fb844f65875408e6975255c2380425eae41fd42bfa8e419b58ec29d4434f08. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0012100221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c80e5cbb8d429ab864888d418c7c670cc825e58ad377ea8934709617370199. 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/CH0012100222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5360621b65e9e56e323db394b2a08bc1f709ee510352c6e9bff7a262da61717. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/CH0012100223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391b3f14aab4dac11ed6f8622812444246f522b0d50b1b0760d471f04de65437. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:55:06Z), 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/CH0012100254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa906e277548734c03ac6b55f177c8246d3e9719d4a888201aeade4f3e1658b40. 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/CH0012200146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b54a3e0b82bbe29bc2ba46f160ed7825c1a12969723175d2243a2109447a9c3. 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/CHUM72300256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa4dd086584cb9a12c3a7e03f9d3b74c96adfd8efb40971c1b53c7d24862137. 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/CHUM72400081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede054208cce55cf2a9f42ddf358b3f9f72a35c80767c1536dea5693aa709cce. 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/CHUM72400071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc900f610fec0af9a6eda411881d554719673d050e14d86d03d17f632401d4c. 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/CHUM72400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde181714de53f8e94804322fa84c00fabf920faeab80b7a1b505ede9eee9ca8e. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/CHUM72400080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0dfeab87c08289019c0683f33259ab6492bc5e74e0286173674cc1527551ce5. 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/CHUM72400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914fdee84a7a07016f0ce3664feb094bf8ab1cae1059f07df0716e27dc3adf5d. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/CHUM72400083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ee2369eb39d57936f594148725a3add6e3c8b9d28f3bc75aa694eae4ee81a9. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:43:48Z), 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/CHUM72400084.
My Man Is a Mean Man - aus "Sing meinen Song"
Sing meinen Song - Das Schweizer Tauschkonzert
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd0a7a27c2276845a5f39088cf3f142983dd086cff4a6764dfdd070566f8bbc. 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/CH0832000140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9eb17a5f75d05c7f0e12c48bae88efc40d14e9b7150758fe7628ef3463d6c06. 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/CH0832000260.
Probier mi doch mal us - aus "Sing meinen Song"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903f6c72ea8b2713f9b0a35e07ccc8f30c1f8ce64805312875d6933abe1fe68b. 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/CH0832000310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025c5db83e5a0d76339309460beb9e3bf82240911be8bfa9b5d98e4837bf60d2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CH0832000410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2195348535a80ac1834c9b9a9176fa9856db1d6433081a95725bd7adb0b8309. 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/CHUM72300190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040c598341450af02a009568c0a3476f75ae787aefa65f80bec1e62861b14ce8. 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/CHUM72400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc900f610fec0af9a6eda411881d554719673d050e14d86d03d17f632401d4c. 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/CHUM72400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa4dd086584cb9a12c3a7e03f9d3b74c96adfd8efb40971c1b53c7d24862137. 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/CHUM72400081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa4dd086584cb9a12c3a7e03f9d3b74c96adfd8efb40971c1b53c7d24862137. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CHUM72400081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd37ac7631b66313f1ff40ba642b8efa05fe4dcaaa1eaf00350a7add96464f90. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T15:09:46Z), 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/CH0832000430.
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
Punto - aus "Sing meinen Song - Die schönsten Duette"
Sing meinen Song - Das Schweizer Tauschkonzert, Die schönsten Duette
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa060293fb3bfbd3f8145548a4f7f0d3a93ce1636fee59901801cf35dada4554. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/CH0832004940.
Annabelle - aus "Sing meinen Song - Die schönsten Duette"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0445afad760bab2b29b3f262f424973898bbdece0f36bb19eedbc81dcc3699ea. 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/CH0832004980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167a9e73f4d5fd61a769ec3886eb593b5e76151f33a0f4d48fd56f6e3da9aff1. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/CH0832000490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54210c0eda90942c542677d26ed18c09c6feb3ce3ebe247423d6da30910c02fb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH4881902001.