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 0x0afc3210478483ff56b0318eab0df2a0ea6e0a9752918845fe70cfffa2c5a028. 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/ea22811e-d003-4a0b-ac22-c203833ccb98.json and https://artists.proofprofile.net/proofs/artist/ea22811e-d003-4a0b-ac22-c203833ccb98.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 0xc08816525808b98041a6f2f7659b8f00e8f45b9cadb5c5dbb7a8fbbf73e8a2d4. 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/CH7811934309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154c24e453a7dacfacd8f7d29553cce56fdc8b07eeb334b2c87344fec88d30fa. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/FRX872002181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8399b02596e61ab2b55c7a9b4a2459c2d7fa337e8a951a8fefa0612c58091e. 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/DEXS82100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c762a34ff22c2e63bdc38d45c1a968cd04e22d3fdf0e152aa140a28e5817dd4. 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/DEXS82100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611544550f220d1eb477cd9c61113a9c105ecf15a80c3f16129f37a3fc880afc. 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/DEXS82100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2259ef2ee12d3856a17074793703c96794229505ef778ef8680d16b1c860ca. 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/DEXS82100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8399b02596e61ab2b55c7a9b4a2459c2d7fa337e8a951a8fefa0612c58091e. 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/DEXS82100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf437ff94b1d392287e722156a83019bc0b14e2f8fd94570b5d186c2ab707eebc. 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/DEXS82100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7839570ce7d8781a8d3baad8cfc67027d29788ad99bd3025cbbddb90d39003a2. 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/DEXS82100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6646e14cd2f8f1b23dae577668220493b12ef8bdbbfd96ac636f8e43f1cf96c8. 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/DEXS82100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf72a4777843b54e9e37c6c335b161af46121cfea179d75974eab79aa34c2b0. 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/DEXS82100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff4693b4d25b23a051ef536db51219d5d85a6e68241f3fa24ee2895834665f2. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:09:44Z), 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/DEXS82100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbdfaeaf9c48288cc59a45f4ad110dd04b60ccb19db2300ecc8a2d9d4a8522f. 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/DEXS82100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ce7af1d89db00f16804ec811297b7692c124d96f27daad8dca22bb481ffdd3. 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/DEXS82200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab31126525f2c1f9d9997981a034abdd4d820bb6d3e768acd59220f380b7ef3. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/DEXS82200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc934cc8245317ae216ae8ece9e6d97debd3fb477f4201519fa915f0228e73cd. 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/DEXS82200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50019a73ea441f2037986abdf9ea95a691eac03e398dfc909c99e9c468745dcb. 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/DEXS82200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811d95e60d883860c1c2a9feec44499fa5a5cd3cf11d0cb39578f44610d18bd1. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/DEXS82200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2593ba73213d1081367aabac5df1f78ebd59d411803f94530fd56950447a27d6. 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/DEXS82200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca3832fa822a707229393b0d621d1d22cde7faa7e086f1ffe072c45e9d9301c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEXS82200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ffa0190b1a30935966f99d9e47e29a077ac74485d8336db00bc2b478f61df3. 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/DEXS82300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b997abd95a966c9e22e2a5d68e47f3c8ecacdf5439e6d22790a8b2c33d45169. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/DEXS82300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f7a1e49b117711ac40aa656a90a0fd43e6ac2b8c78fec743dc18fd5094bd13. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:07:49Z), 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/DEXS82300031.
CIAO (EIN JUNGE VON DER STRASSE LIEBT AUCH)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa95a5ea19978b2e78a73145e969e0d38e4a54c91fce3256bd0df535f8e00d4. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DEXS82300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe752ae59d078fe86750cc6b13a302835aaea8c7243f15eb5f2d7bcf34a66342c. 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/DEZC62464974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe25423468f281cab357151ecc1f589ca28a057f88ef0deda5ab6b715954158a. 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/DECE72203614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc08038b18a072af27c85e2fa71df694071d0b4c35b7e7406847212ff3943d4f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CH7812074048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f9faaa7788d68cae34b3361870814200d1b9d34b6468dacef087533d861e8e. 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/CH7812060604.