Naden may refer to: People Brent Naden (b. 1995), Australian rugby player Constance Naden (1858–1889), English writer George Ratcliffe Naden (1865–1953), English political figure James Naden (1889–19
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 0x35815e8b3bc9d5538e71ef279ef3316d58b29861fd73732ee02d121ad42e142b. 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/ce669a15-a27c-468d-ad54-463b6182f2e9.json and https://artists.proofprofile.net/proofs/artist/ce669a15-a27c-468d-ad54-463b6182f2e9.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 0xcfec59dbb5af90bcaef137f1bb70fc95c23bd40b1e1cadaa4a68684e269d9c25. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDMU1900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2213f169b24e8cc1be1b32d37eee93360956d37d9b3747129944f5660fcc7e1b. 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/QZDMU2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110a8b3ff1de4b0f0e83dada738a2a63fdb274582f379d76b13ab91a92f1d1ae. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZDMU2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8602c6d210029f8e64b49e75acd0f2cb98eb2b7b9286914426e64552bf38cf. 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/QZDMU2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6fc16922b9b23051f87c73f75a419c688621a4ed7f4fee45899d4486357f91. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QZDMU2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5081cb5982a7126038d33c663e21a445ac0b8f178d758cecd9c39f2e1ab6b04e. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZDMU2100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a3409ae046809046a4ae9017307e90b033a454ff692580ef4cc1297a6dab9d. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZDMU2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d62df4ecd5be2172c7e9cf0abacf998f51d7ccc9bea4e0cbadeb6166b7e19e. 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/QZDMU2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad850b81d354545d02ba92edb132f7f03f29ab0d324550525a01c7c26b9dd0ab. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZDMU2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680bda273388f618b6184373fc920773cd9fb5c4404fc7c848126754db13b664. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZDMU2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b788608a37b982337048f03f9a64a9bbefbd47824f62f10458439e1aaa9dc7. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZDMU2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b9c93e050e534bdf55b3833eb59b35f9751a8f5d5f938e34460b48f455179b. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/QZDMU2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8442f6d7d143659f5c2e598091415d54966b6d790c641063bad44bb4c0e0a4a7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBEWA1701871.
In Search of Sunrise 14 Mixed by Markus Schulz, Gabriel & Dresden and Andy Moor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff1c80a4548eb6b3b765fba89542b2696b053c56b7912a5c41bffb3525c8535. 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/NLD681802352.
Only Silk 05 (Mixed by Max Flyant and Vintage & Morelli)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3191aa3fc059bc3051075a3cbd6d764f78bdff09295929848f7488bbfb607d6. 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/US83Z1823145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c102ae01a0530cf02cc5cef4d1d263d81b2d812771dbb91e43bb15809c748f. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/GBKQU1319290.