thumb|Anthony Rother. Anthony Rother (born 29 April 1972) is an electronic music composer, producer and label owner living in Offenbach, Germany. Music style Rother is considered a pioneer of a form
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 0x4bcc945d6b5a51cb0f2883d795daf1dc759935646e2a1c8c9630bdf824621d5e. 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/41b9bfbf-2f24-4623-96d6-1598edde34fa.json and https://artists.proofprofile.net/proofs/artist/41b9bfbf-2f24-4623-96d6-1598edde34fa.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 0xf059132be762ee13d01286662682778d4ebab2eda85a3fcbbcc54ff0bce23b61. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEQ121113227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a1c3e473b33912115a6fcf9817a7238da959c15f01bf5489e68f154e08ebaa. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/DEQ121113693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2f5d80428080b7ea604066b2dac011e3ac62fec38b599d80b25df36c32d363. 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/DEQ121113694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ea1ba607c10aadc8d18cd06ae986d174f61277a03b592fc4c6136514a27d47. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:30:34Z), 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/DEQ121113696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2dad184b774b6eb8771503c27893841c923734546bb38820fa06134eaf9802. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/DEQ121113697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc247d164e614da13e8dc23f071d676f069aa1a5d28067a14ca02c417eacbf5. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/DEQ121114254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072881ff493fbfc0b18d28ca977abc02e6cb9dd36d78958da9f53c77db343e64. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/DEQ121114255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af58bd9cb3b6ddb3cc79f506cb31d50b1d29c19097df3ab7c5ffd4981f9a9eb. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:47:20Z), 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/DEQ121114256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66092f6a30898e572b8dbe5494fe26bec952872217ae0167b7f530766815d016. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/DEQ121114259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d33c85028596499301317a46cf1ae4aaef39f915399a6721127a3af69582df. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEQ121114260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5623554df2789445eb8cd691add5aba1fba17981c0b51589c0c58ea4076a3325. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/DEQ121114261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896e2a2bd7852047fb4b95ab7c62abb0da99290d8e9c7d5008c21e5d2542506f. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/DEQ121114262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c195bdd7248346867f66aa5425c255ef0b828a63c8ffbadfe3d0c545db4e29. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/DEQ121114268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b2b4929589b6728a2e977fed0b06fe137f60e77122942b8dc05cadbfffdfb9. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/DEQ121114271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4a1546a4a0d8e960f46d86ed4328f0a8045e612ade60ac72599219378f3159. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/DEQ121114274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d842bb9feecb800d953c80a1bdb1d91580a409d6eb52b8bf2e3c9382845a400. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/DEQ121114276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f444b3e635028122c7c92d7138dccdf816aa29795294b0bb73809611323249. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEQ121113677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4223a1923a01d39582f594acc870e98aed606e5646ae2427c7430acb5b7c305e. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/DEQ121113645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe374791417dd4e76e670e42b23681c603c67243cb67ba3e21f88c9ac3b727266. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEQ121113646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa568a2644a4cb1da5daf2a870842916b1bb440e19104be078aaa39226ecfe1eb. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/DEQ121113649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab8e8f71a08ed99855d473a1b64424161593f6b2794ba0b97595f37b79be32f. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/DEQ121114203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69aa122f5bb8a0bd43f0ba209c44290c8c85bd03aed0789405be3e6c0f87993. 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/DEQ121114209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39dfa963524894dcf7596f4464bddc5f71e8225fa083c190767f6f8a0cd30960. 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/DEQ120706780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533941f7f56577da91494d407ea18ac8c98b3ae5302adcd755445a363843d646. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:43:28Z), 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/DEQ121009686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c59a760f35f81454325b25e63be40a8fefea2c18bc45b67c69d6a67d4405378. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/DEQ121009687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1e76dcb32bc52beb8f200d53746ba842c6fd29fee41589b484715529902fac. 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/DEQ121009690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8ca7ceca6fa3ed31ad7f7c53689cd72fa456c6d0a71d588f993fde3b8087a6. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/DEQ121009688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fd93316a2f7e90c9dcc3b15f58678c3260e8ce779acbb6eefb5fde756de944. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/BEN581100180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc398e603aeca407c058c0ef1df3afdac4bb5164a09dba65e860dc0e8a26d20f. 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/NLL562009687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd5d1569b797d44878583ea8b55a913d3407e96887441b8214f4dcb738a5f4c. 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/DEQ022116210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc670f7a8c42c97d3dd74512ea18b2a75a46888c8bf6370406692f3a415b91696. 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/DEQ022116212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1afbb2006ef3e5dabdd72de08f27cfcdfb4f888549d29fa33a5fe11bd30d3d10. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:33:44Z), 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/DEQ022116219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659addafa3049d4ce43f15ac46d7960fbf54ee8259135c04980138106f133628. 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/DEMM42201032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8025672a9b2d96aa91a0f29d164f3b74b1e66f38819f06f89561a6ed05fe1bca. 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/US4GE1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66af84a17d95fb45de700bb9e93381f6e251374373c1806ab590cd656886098. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/NLL562301903.
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