thumbnail|Jokeren (2013) Jesper Dahl (born 13 June 1973), better known by the stage name Jokeren (The Joker), is a Danish hip-hop artist and rapper. Dahl was born in Hillerød. In addition to his own
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 0x99a136d2b358b0dde807f6263d114499b536e695e506a9a7920d0a983fddfe37. 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/62fb499e-2ae8-47a3-911b-95140452aa2d.json and https://artists.proofprofile.net/proofs/artist/62fb499e-2ae8-47a3-911b-95140452aa2d.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 0x44adae233e0d741ed02a0ad8039097226020cfacd2876d5f8dad034052ed7583. 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/DKADG1800599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4457c189311f62fac41cb8e38b020576a5e758365e83dbf9707b9948872f3bb. 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/DKADG1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530436d58bdc14a6d9ab5139d4aa69268821a67ccb95c2174d3e5f1e6efa0583. 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/DKADG1800600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a31b4b82a65e7043de365c268f84d34713f43e9e08b0dd0c7fc4640f165e90. 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/DKADG1800154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cac66624ab69c7068a386da2c0abe1e465ae6affcef9178969ecfbacb244f5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DKADG1800603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a5027c1dc05a10a4a25a2e57142d321f1d5e1a10065fa9059eca3eaa3cfa0b. 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/DKADG1700540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7a22570b040aed377da7dda69411a62dd2fced4492d74a0a1495443cdc71e6. 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/DKADG1800604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896a61cff21c52326e2743abbd4baea45df225c484764c063e066108720f6c81. 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/DKADG1800607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8b5349f7e7244cb4359fe005986cbd7d12e15d330fb01bca1c6ee5d8526575. 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/DKADG1800608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e961635e75e18acf6f1921ac9b25da4cc560f5ca832183de54cfbe1887c38a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DKAZA1400904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d746f9e22afced286f9bde6286d3beaf943babbdd81dc35a26b7b50edd604c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DKAZA1400906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3483a219efcd2833a6df664378f3bdf85815ce68ecacac09cd868ad1bf781f07. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DKAZA1400909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e237e4f66437e957ec6b723075364a3b9ad44b5db306228396353ccfa58cd5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DKAZA1400912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80aa4d8187e4cedd71641ffc9435c6b485cd59bb5c0553674f76d639f0ac8462. 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/DKAZA1400770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110406f47b3cca44152863d528a9e71930833e379d197d6503984a932d9d9fe8. 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/DKUM70801487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b356f2c46bf893229cae5d5897594724dc57b06fb449b5b60717dfe2f3a03cd. 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/DKUM70801489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c85e7d825651ba2a91f655fb878e4a6c6d69aa7321b5fd00e5c4d3610aa3e7b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DKUM70801493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4700ae5a3b216425a04978a8efe1e1aa07f8cff53d6ed77f48519dec94201ad7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DKUM70801488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0255e69fee9c0774fc00ed9d4a34cfbbc67d3d80766ce6f169f306cc8bcc0397. 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/DKUM70801497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81005521667992922ffbae2645b36904d5b2de02d27e285d27d05e19a334b53f. 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/DKUM70801494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d43b2c1daac5c9ee7d81ebe492a7a4cd648685cbd09cacff82e703b4d4c25f0. 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/DKUM70500187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305fdfd20ac4e2f10b5f734e61f4cd0974986ba90db37d2614ed8dea9d18696b. 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/DKUM70500153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c0c2429ca91676fa53ae04a179c70710aab1620dee524b8082ac03691d1ef1. 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/DKUM70500188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57de1d213257c94929258e7e8dafcc3dd348d236fcdbf11609173e511c5e6d48. 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/DKUM70500192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1cddbe342bebdb01489db64e872600d4cda43b8a5b97c30d5c2d72321269ac. 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/DKUM70500193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9541f92f28b1e1ec085835f6b52b0c34f677590ecd0a4c55c2d689bffd616dcd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DKUM70500189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab43d594e10558deaf3ea786699a3366c09ae13454f14c7e8344d687a415fe2. 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/DKUM70500195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cff24c4c5612ebfd0d172508aaf7402d97a17b5961985fee4afa88671acec78. 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/DKUM70500198.
Jeg Dagdrømte Om Os I Nat (Make Them Beg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958e8733a767790f051669e45d473f00da3b3d3fdb6ad2a375c7fc3ff6b106e8. 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/DKYH91600201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f255d8cc45f56e54b3a004180279ca5e7518a61487c39c34284a64374312b0. 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/DKABA0306402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c50eb607d65bf4384fb775c00abb5ef741f1ccdc4164548e2e9b93489c366e. 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/DKABA0306407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0255e69fee9c0774fc00ed9d4a34cfbbc67d3d80766ce6f169f306cc8bcc0397. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DKUM70801497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3120700e920e9d01834f39e3a8082bfc373a7474b66dddd193a5ae62727d1be3. 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/DKBR70601510.