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 0x601292d33161d2eb6ee2e3072920adf874b1d47768527d1ef37eccff2c6852ab. 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/17d33e0b-c8c4-4d2e-8661-8f5c09d25dda.json and https://artists.proofprofile.net/proofs/artist/17d33e0b-c8c4-4d2e-8661-8f5c09d25dda.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 0x3b0e1b63b0c6b812de02cafc227e9c4eca86aeceef7e9cf5f56c67e42c73cf65. 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/SEWGI1602901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36009e8396c4bd62c5a36cd55dcfa262ec7011ddea6890cf91271cdc6c4d2faa. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:35:51Z), 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/SEWGI1602902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45146a5a3f8be6781dbc79dbd531e4954340932cb46680942b9cd1cab1af8e58. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/SEWGI1602904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4485589f6c0d5d622ef85d6f36a0d9621da53980565585476e593c66d14ceee4. 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/SE6AA1900501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57928c38dbd169f9f39bfc020119481fd2f48b4b16b39a187da66e9f3f8f2c50. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:49:57Z), 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/SE6AA1900301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8a64484e82a7b41943d0b6382ec0e7196b3b93027287074a3ed39c20bb6ce3. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/SE6AA1800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f9583c74a12e5d2915446455405c1e0d09029a61b1fa78dfd61b6347d2d076. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:18:51Z), 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/SE6AA1900506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9fcae96f9c84a0e70fcaa27d462e130acf9a4ab37d7a6d07a86e83cb5663fa. 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/SE6AA1900401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03b73e8540162c940a317d281a68c2bf01bce6ac741f7fb07ab7a70fa0f6bcd. 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/SE6AA1900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26017c1fb77200411361cbb54a67987f19eef40640fcee077faf8120015de0bd. 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/SE6AA1900511.
Aska, glitter och annat som försvinner med vinden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1148a8726a618e5d2f662c8696ce681ce834d5f093752122ce326b481c246c2. 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/SE6AA2100401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a951e905bb48ac06d65da6826d05020997c1c4ed625ad4dd7311c9e575abb1. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/SE6AA2100501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abebb69f28b95acc45784a4d08d2d7a8de2328b9b081ed320fc63bbb4bf7ef7. 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/SE6AA2100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefad0bc113f386afc14365e238c696a4dc52aa112e575a45fd69d5984b7eeba9. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/SE6AA2100607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b6c32372b27a0c3136d62aebbd0ee394698930ff8b92c647cfa53b1f7ad6fe. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/SE6AA2100608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef463a02f302aa13a682afe590d69abbffc184eda9f894af6c2dfd6085c32c2. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/SE6AA2100609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c802e5768ab4423283e82864815b151cfe8ced4220f431d15420cc9ba8fc602. 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/SE6AA2100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd535d68f051f23048869f70d73db39bc75c19b7af9169bebe0fe38a206bfeba. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SE6AA2400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48a481554e2120fdd1f1845aeee36408639aa39195706de6eca3ed41cc95728. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:20:19Z), 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/SE6AA2400201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438a8fe06428c1890a3b05d633e77dcc95aefc53a9d5d6bea865d02e76cbd8ab. 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/SE6AA2400401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe63d0b01cef132ca1bded06cd320b72053db7264752fc984b34cb8953fd162b. 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/SE6AA2400501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438a8fe06428c1890a3b05d633e77dcc95aefc53a9d5d6bea865d02e76cbd8ab. 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/SE6AA2400401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dce44776b7c5a8705bf9d7d61c91ddb57b651357021386aec94e6a722158b8. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/SE6AA2400603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a342fa6fabe77255966a9ff50dc1c01bd4792c7b85c80280b5cfc3e0422dd9. 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/SE6AA2400605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1139cbc7da94b3931eccdd4b930fc082bf25cc908b303bb05028ca13b34b87f. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:41:56Z), 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/SE6AA2400607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908d30ecfc428a385afd5fa89412a22a54ea3b71c5f992f96c1235189758f07d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:54:40Z), 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/SE6AA2400301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3632f049d7e066279758ef626983f91ad1a89ec0efb3837b4ba0491d5d116317. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/SE6AA2400609.