thumb | right | alt=Elmer Diktonius (1896–1961) | Elmer Diktonius (1896–1961) Elmer is a name of Germanic British origin. The given name originated as a surname, a medieval variant of the given name
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 0x61c7b2adbc37d0f5b50ba4e304778b8454c92d4b94b9a05cdc5a61fd00583925. 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/66efeef4-17a4-499a-8517-8bf4e15319cd.json and https://artists.proofprofile.net/proofs/artist/66efeef4-17a4-499a-8517-8bf4e15319cd.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 0x87b972527dee5903779f3ad201e667e06f673d4e0b6a8ce64277f7ca7ff9d491. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/NL6JD2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc115b82255faef55721d4884b433b7e5e5b1ee7f9f288ee49192e5e480b9854. 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/NL6JD2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0345895004add8e64ef05a392761e66b26f2e2e6bc139e88699f9cb4a42155. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/NL6JD2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0916757b08db72e44a538923f265870620267b1b026da05bea8b170d0cdc56. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/NL5CY2200156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0df1e8a734d7826cef92d6635644277dc28f9f5030f933c2a91535d5766e931. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/NL5CY2300157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc949721d376592e3044fd709655e1ae8befea36a766bb5701637a17a533afd06. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/NL5CY2300166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc05b6c0aeaca39a6fcc8f4ea7e991fb7b4099d23e206a0cbca38f41758f04d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NL5CY2300168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc27318001b86b283014084a183850d5bb38e7785c6ab779d1a5d080b8aba261. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NLSB72300336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040aebc91e044ef985b974f99828633bf8d1c0a997713a4eb31fdee7f8b8e05c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:08:39Z), 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/NLSB72300445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f823c72a4bba051f9448a08c1e6d4c188b85755e76839fc5ad87e5dd6a90f5. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/NLSB72300446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f5beeb74a98e705e96679990a92a0d19b4b70289587d7003fe223a7c1139bf. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:59:22Z), 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/NLSB72300447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5651ce6072af1af09e096c8b9942cd6b9f4f7d4f0eb7ba33aa3b889588ad26e6. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/NLSB72400389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03af3d904f2b7c9af8e75454894b8f1904305433163a563a5f33b4952ccb8565. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/NLSB72400437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b496f75819590ed3f7a312b97c31f6a931e452c6bc8c1e3e2bff5af8e5b9489. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:07:34Z), 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/NLSB72400482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61a989514aef8e526bea6e20c46b144a81a688d3a301b9c5f282ee7253f743a. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/NLSB72400484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345ecd948202cc846910241aec502f11be63edb5a0ec103fceb28e827609d58b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:30:07Z), 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/NLSB72400486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb56fe2249f8f1675a3a32b588ed775bee9e7888a41eac4e7c9045e9e84ef978. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:29:35Z), 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/NLSB72400489.