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 0x7be4a97f4707bb24b5e2cfc99636d6292a3ec40f96f5f4487e42ea9ff4cb22f1. 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/c5491771-e597-400a-bb5e-8071aa87b07f.json and https://artists.proofprofile.net/proofs/artist/c5491771-e597-400a-bb5e-8071aa87b07f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lillefredag (Johny Cola X Randers Cowboys)
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 0x25e6adf4d8640fe4b5d214d58ae7cb5e1889953c791a7e93713ab128792e9b3c. 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/DKUM72100553.
Jul I Provinsen (Johny Cola, Randers Cowboys, FISSELIS, PornoPer, Minimanden & Dranker Dan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca2858f092898edf87efa758d59c75ca94f27c4d124b60aa2833aa8acf8256a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DKUM72000822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae776c302ba464b8c1c2a941d5b2436ffa272c33b33af29f355580aad6524fe. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DKADG2000309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b2eda9f42c720bfbed5086d923249d61aaf3f9676b2ba0300a773e8ed535fa. 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/DK4YA1917701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d26fb722795bf573a29d80a2ed50282183829ed6722f5687b5be76994c3c40. 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/DKADG1900225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c088af037e176bd15685f6b5d8bfa43b83f19adb907a28d665986511ad23c4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DKUM72100294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc49de2e9816efae0174d0ad6552ff816b2647cfad8140db174f8bd730e0ae2d. 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/QZK6K2484176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0100cdfcb83900bb75c42c41fd7dbfca4e64339d448dc76e0f23c693f176b44. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCAGS2377378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb75906ee67f0b77216e925084513a2e60f171d4c8f1ccaad6cdecc8915d32a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DK4YA2294501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a40879c7f541283d99e96e8b0a5dae5de2fc03beba20fe426b90e67b02899e0. 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/DK4YA2291301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f2d9bfcde5be7641fa8200fe14d75e1311baba9c7ee155ddf4867fd307aae5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DKUM72200236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c94ff66a300a27678f59f5611d1afb5f3325980ba3b1bfb0f8be3207e30409. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DKUM72000422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a30dc0c2d62906975699a10d724860035b07e5211c358e1f5f8ee47ba5f4a09. 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/DKADG2000434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e1226c2f6cb705a0f7928b2e81e7fb09ef3d777e0a830f4badb8b6eb91bf17. 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/DKADG2000445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e00eafd66b691365f964ade632451d30b58703168bba6bd9c29fee681e36aaa. 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/DKADG2000452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f07959021d548d926f1574202b4685eaad64eead7905465cebd9efa258fa48. 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/DKADG2000473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88b3ef390e0f3ae09c913130364a54a6d8ed3843bcc9d90edccb842d2d8f95b. 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/DKADG2000481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f07959021d548d926f1574202b4685eaad64eead7905465cebd9efa258fa48. 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/DKADG2000473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e00eafd66b691365f964ade632451d30b58703168bba6bd9c29fee681e36aaa. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DKADG2000452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e1226c2f6cb705a0f7928b2e81e7fb09ef3d777e0a830f4badb8b6eb91bf17. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DKADG2000445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a30dc0c2d62906975699a10d724860035b07e5211c358e1f5f8ee47ba5f4a09. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DKADG2000434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac949e263b24208c53f85fcfe4ce327611ba6bd524e2d0f67f6345f11d45c170. 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/DKADG2000350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7020d1ac8a51545d3acce4cdb936d11642b287489347aab5d5dc9704b105fe57. 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/TCAES2036192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20496731cb8a7aafa5e4ab8c0c1f01bbcabbbf31e452d7393d4724649eab6ee6. 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/DK4YA2005501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8a1128ee36a6afed0c4001a2aea9f034b1478a12c85af4093499b140e1c14e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DK4YA1906901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5996713cfae13e7be034ad9233bf33922b019c0178fc1b47a3f7c08062a3856c. 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/DK4YA1823101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe27ed5cc764e7dc9f80817735ab6c4eef61a37327166f775a853cd132fbfbd7. 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/DK4YA1819601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f1c23b5d33e31956e356c59d205f2b105cc211b96020349a8fde60d079cfd2. 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/DK4YA1719001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80fcb1bce3f5247771c8edfe35724e4a3b4a6b68193e74a10cc5719dadf4dce. 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/DKA961600201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f426092ddf7d2427a2cf2df3e5e2f3b7fb63403fdf6833967f3571e1ad9fcbe. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DKA961600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad7d151bfae52c761498856f0db4312207ef7761a9a77e9b928e325ca3b72ca. 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/DK4YA1822701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0a6dbbdfe41b44d27457afd2d8961f5f52a7ce4b00c3759f4d0809361df633. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAFY2129925.