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 0x0fb58f7b0ddf9986768a9e60d135cf72b84218c6887f0e47cbd452f2ec8a8f8f. 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/0f06cde6-a50d-4a4d-bf0f-65c4b5783aba.json and https://artists.proofprofile.net/proofs/artist/0f06cde6-a50d-4a4d-bf0f-65c4b5783aba.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 0x87f536ed4976efd4ad134be313d504641152e86a144c1ef6b7c074e0cbb49ad8. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/DEZ040600628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0891b6aec073c78241180af62fa4b82a1bd99c3a4485f2e7e5ea7dfefb148adc. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/DEC717700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9f251d43c5806fe739a69461cb80c2cff645acb10073e6c67e3a933c76b921. 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/DEC717200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457ef9eedbff8263527d8c9fc8d1276875cfbe4f2164641dd631147a1c4fb7d2. 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/DEZ040400685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41dacbfe53e81ed6dc29c838d8c4cf84fda2b292682378961ab2700defc5d86f. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEC717800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74f262688ca9755ce9699eb9b0ba01725065f0f4309f3f64643ea03b1a0e245. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:36:10Z), 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/DEZ040701099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d583b838ae5edd169ee5a2888ef925ec39982c9053cfdf72fbe983d294fac1. 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/DEC718000018.
Ach laß mich doch in deinem Wald der Oberförster sein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aefc50c9dccfd7d58bf31e44311fc661603b2ea7c832bfdeaa12ea56a632041. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEA818300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bca2aec98878c8585d4263dca185d69790693622bb1a93639f9bac64d453729. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEC719800283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42693405197501617ea64f48c67f50421f643e93b52201cc45f7751288419a58. 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/DEHZ21000615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909aea0e13297d64b18df9951ec566c429febc1f03d84c677a9ec2855fb8cf45. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:29:03Z), 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/DEHZ21000620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661df87771dd09f22e4f4940968736ffdac9c23a496703861af2104b1c5eb89b. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/DEHZ20900439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3033d6b7100337f7fce2116266e59d6df76f9fce6e27f43c0970114bb8f5469e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEHZ21000622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d6fe57a88e4b22c032cb93796c043701131160db8eef5c3862dffe60c576fc. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/DEZ041104879.
7 merveilles de la musique: Tony Marshall
75 Jahre Tony Marshall - Die größten Hits meines Lebens
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3033d6b7100337f7fce2116266e59d6df76f9fce6e27f43c0970114bb8f5469e. 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/DEHZ21000622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfedf420d15a42e9c33bf21b3fb9e1e5346f19e2cd4616c368dbbe890b87787d4. 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/DEHZ21000614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2138db949cfa174ac0a61921ce626f753df251403e08bc3a5011b41f9b93a8. 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/DEHZ21301008.
Ich wünsch mir eine Autobahn - Radio-Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f306ae7b95168da9f46752030904175e1703dab3dfab5ece6cf7ab7e89921a. 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/ATR981150009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1316d5663f5da724ad25ab2b212f8dbe22e7e8d5e7e2e57561ebcdddbb50941b. 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/DEX521700081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6caa2e60e6d3b84f94462a7184fd2b87d82ba4879fd801f5f9dc2d95b236ba54. 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/DEX521700083.
Warum kann unser Altenheim am Sonntag keine Disco sein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48c738b5b41e82db30906362b592dfcb7a40fa7ef3d7e08cb96c9c60cbab662. 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/DEX521700084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9f251d43c5806fe739a69461cb80c2cff645acb10073e6c67e3a933c76b921. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEC717200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f4ffe044fe9db568faefa54c00465d5d65b931fdbbe6b00dc60abcd9070e76. 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/DEC718800042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469c408b94b42eb1194c7a2234bb6cbfc44f705cbd4ffa763646e48fd241649f. 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/DEC717100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983cb6c4563a30ff58ad9a322fcd23411f48d12e6390e34cad36a1dfb19f5355. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEC717100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12326a229c8050752c759ab4404026372805852f1ed42f4203042e5664a9df3. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/DEQS92100920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3569239919243c4372a2e54510bfbc7a5db66b8d711a9c66e8d9099166a33f. 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/DEQS92101343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469c408b94b42eb1194c7a2234bb6cbfc44f705cbd4ffa763646e48fd241649f. 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/DEC717100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34a1d0b37234fb4e153409dafbbb2bcc7d0a8313c120a58cd78ae8751a53b5c. 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/DEC718200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045467b57b95a56f1abbd820deea19116b02b92a9a5cf19d2d3903a62419062e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEC718100077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469c408b94b42eb1194c7a2234bb6cbfc44f705cbd4ffa763646e48fd241649f. 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/DEC717100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469c408b94b42eb1194c7a2234bb6cbfc44f705cbd4ffa763646e48fd241649f. 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/DEC717100003.