Laura may refer to: People and fictional characters Laura (given name), including lists of people and fictional characters with the name Laura, muse of Petrarch's poetry Laura, the British code na
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 0x7a541624103ddd1dfb3611a727cfba2651d414eff593eb53d57dc61d9f0e6263. 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/a278a20a-a7ea-4d4e-81c8-a503591ba7c8.json and https://artists.proofprofile.net/proofs/artist/a278a20a-a7ea-4d4e-81c8-a503591ba7c8.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 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 0xbd11035e1f9aebb20fc19bd361f5f772c0ab41cd550988c69044f0f7d50e8b4f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEUM71016768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5e97dc7061cdf65495747b15278fa8b37300258aaccf375759cbf27e967625. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEUM71016771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bbc2b74d74df30b8cb015853c6a5c9eef64771ff79ac1c3960ed11c375ceb4. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/DEUM71016772.
Primaballerina (Titellied Laura) (Outro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231e6042c3cc796fd196f905f39cc3f2d802f0a082561bdecd406b5bc5c0979c. 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/DEUM71000610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c01e5cff8290799ff0a703dbb39501399f945fcb0876c15a6e118c472ab2021. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/DEUM71000614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5232e0eff62b26d325dd741bd87eb1ad09dfee9f7ac515447bba1b052cef0b81. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/DEUM71000615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb8529ea7f7ec7ccc4718388379e6639d61d2dde23877a5c841b84931b71ecd. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/DEUM71000617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ee7e2079714eb8a5913af08838f9724a2aa549b6cd9144ecb2186010615786. 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/DEUM71000618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6043603cd214f15b4cf89836629ee60f68e9a438be6d6a2a1633314d97520c. 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/DEUM71000620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb139a65826676d16c3e2995fa82afec7a453197b7ce920aaaed456b5a515f6. 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/DEUM71000621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c39d123ae0850ed94f9b428ce3ffce48f97ecf473a20ae96318cdc946160f5e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DEUM71000622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb19f19adfd503edfbf45859ee927210997d3a9be7cb94943e4dbe84fe2aca7d. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/DEUM71000624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37f094b48e1099d11da74a49b2b1cc33563fba06143438a1e7b3b1bee7253e0. 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/DEUM71000626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa81e2fe687a5f47fde16fbd7caffc890885c71327d6aaf2cb0fafcfd95b2863. 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/DEUM71000600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a2c06b75bd23c62df779908afaf98bf1b221ff071a99feef9fba113bbe74fc. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/DEUM71000601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bcfb2862c2ae6c5d7484e6375318d9073d9b4b75494d548aee053e641f9e35. 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/DEUM71000602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed728f2b48cfcd4ae2faf1eb9428a606b9bc7a2548a5fecd22c85117e2694d5. 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/DEUM71000603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773b5276a667061dc1316eaa803896a17f1238b728863332ab07152c7ff44860. 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/DEUM71000604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9705c30c7024d960c126e3704fee8bebaeac0f5d0c98cbfc01ae531e3a58cd6. 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/DEUM71000605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc04710915a7eee713bceb221cb937b5386533cac6307540c4c7346fc94baa38. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DEUM71000606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7e94ec4f772b5779d8a9a0eea0432d0fcf5bb10177f121db56df2d47494ba8. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/DEUM71000607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a20fe85643ec5b793e467c925a1f238725f4462db950fe1e753f37f3cc59991. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/DEUM71000608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e2b099d09037eaad8c67a431ae7dd6a4e28556fdaa2cbc13d6aafb8d23fd26. 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/DEUM71000609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa81e2fe687a5f47fde16fbd7caffc890885c71327d6aaf2cb0fafcfd95b2863. 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/DEUM71000600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497556aac517a7462f0190207a15cf1455d98d47bc6d231688442abb5dca546c. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/DEUM71016808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d3753637fc9c8da931e6dec5a5c154b53947edd578d99ce7132042e4b75f62. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/DEUM71016809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb998f3115e23ed26faa61cd44bc880af165d1d010ba92a48ca2cdcf795dc924. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/DEUM71016810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76e751291f87a90551da29ba7e05883953946f7c7f979b7f12a516bb5db1049. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/DEUM71016811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af270c29745b29ff977d10662c809a703a6e71a40160ecf15e042a3677140db. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/DEUM71016812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc715570533e5ce6fd7db7be9f4a8ca88f4bb41e687dd70a6c3611adc4404599d. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/DEUM71016813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9463594c9b442e92d96799317c46f9c74948d053badbcaa214f77b2a90b62f4e. 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/DEUM71016814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x727ed6889fd13dd0a2ba73619940e5eceabada468eee691894d80a7c7242a4fc. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/DEUM71016815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8980031c79538b42cd5263943565c486072482ce148da41addc1591371112fe. 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/DEUM71016816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e74c93e3ff76743b7c033641fc70cb071a69356c6715442135ebf7c73719603. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/DEUM71016817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d2c851bc5578bc49f5887a2309c2408d6bffff822a6dc68946d081298b8713. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/DEUM71016818.