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 0x353f0eae96b7edec24e547c1fc3d40d52febc8219b377d8b97431e73d689b463. 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/ebc59759-10b1-407e-896c-32fa609c0962.json and https://artists.proofprofile.net/proofs/artist/ebc59759-10b1-407e-896c-32fa609c0962.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 0x0a7b102abf31459a4cc36a52c42c2340cdbe78d0890a055f10b9c2c70ba6e821. 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/QZTAZ2245420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a919d5785a5fedb727d39ec0fe81eaca21415dbe3326d1466cd45327b430c5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZTAZ2245421.
We're a Happy Family / Dubble Bubble Blowout
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52c1e6bc53c8d2cca181101b59c34c170e471c5d55c803f70c661fa9f48574b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZRP42355970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9119f9f33e61ac844cc2145e0d978226561738f37e02582b2dd597c0156b0bb. 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/QZHN72362769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9648ac747eed5f91663a470c9a66ab5d6204d92030283832ea88abfcebcf176. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZFZ22466426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e36d1304634bddaccc75821a083a02034b636e43cbbd8a2149629d18dd68869. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QZFZ22466427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe476dedf022046e995c7ba5eba515ab490e87cf836246089a591f15d25f42aed. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZFYZ2337160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ef1fb9da02bd9ad37458fe02e1c6af58033f3f897a4bb402d73787f5b60ea8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZRP42355971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511e50af33d9c97ade99d41e3f1811329d76676ba4752bd001aa6cea5b42be7c. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZFZ22466428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a8c2326d8caff8ce879daff509f1cd8b10e59cb084e907cf85aeebe58107b8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZTB52272657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd91bd263b3116290f0522f1a789669ccdd33a5138059e42f7fb6465649f313. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:04:31Z), 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/QZFZ22466429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3f65ff3cc0928ce62a7133a36674eaaad8ecf82b45408dff2ba6850e306076. 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/QZTAZ2245422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89af7c5c03816da62ff3334f2a49dd0f7c49c3320b3ce40ba0b8645e1472abb8. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZFZ72575843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16648c2bfa2c4c839062cd68e117608a7c5c130e8164b082dce4a594916032be. 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/QZZ782426464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89af7c5c03816da62ff3334f2a49dd0f7c49c3320b3ce40ba0b8645e1472abb8. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:52:46Z), 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/QZFZ72575843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75ac5a3ebcc8beb9d4b52a6ba684c96a0680fd9db631fc31723893f2ac1d179. 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/QZDA82567510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e1dd84a7d06feea5dad7d170ed0ad7225430b9e4cb7af5fc86b2825d1f274c. 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/QZTB22407460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16648c2bfa2c4c839062cd68e117608a7c5c130e8164b082dce4a594916032be. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZZ782426464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92903d433eac43d80e0e17e37ec23c577d3cc847f129f058746e9b12a204693. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:28:04Z), 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/QZTBA2415307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76dd9f4ed4fca8290ec3e8be0bb2724b10e9196a04d2192d1cc04c01a9166a80. 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/QT3EX2414678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c5fae83b2e5a89c41e405ea6d8e40ba69aea52e2215c4b95baf35f177d0dae. 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/QZNWR2506801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c84ed57b20dc37202441a8b56ee6553e49ed66820719322bb7a5b89669d71c9. 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/USCGJ2595342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbbddd0b1e9d823b5a040f6e22529e2c103fcde6ceac210a218b19d85eddb78. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/QZPLR2540504.
Don't Mess With Sex Mex / Whiny Crappy People
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c84ed57b20dc37202441a8b56ee6553e49ed66820719322bb7a5b89669d71c9. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USCGJ2595342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89af7c5c03816da62ff3334f2a49dd0f7c49c3320b3ce40ba0b8645e1472abb8. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:36:34Z), 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/QZFZ72575843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75ac5a3ebcc8beb9d4b52a6ba684c96a0680fd9db631fc31723893f2ac1d179. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZDA82567510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e1dd84a7d06feea5dad7d170ed0ad7225430b9e4cb7af5fc86b2825d1f274c. 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/QZTB22407460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7797e209caa7d2fe7460c5569cf8a231ad9853ebe9695e796abe8a1143abf95e. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:05:16Z), 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/QZMEM2443647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c5fae83b2e5a89c41e405ea6d8e40ba69aea52e2215c4b95baf35f177d0dae. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNWR2506801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5702091969dc3e00037dad82ee3e56b51424f030227f3a28d3af2dc81317c57. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZNWR2421993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16648c2bfa2c4c839062cd68e117608a7c5c130e8164b082dce4a594916032be. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZZ782426464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92903d433eac43d80e0e17e37ec23c577d3cc847f129f058746e9b12a204693. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZTBA2415307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75c0464c5197497e5eb053dd07559c4eabecddee01f3ddced5ed136cb2a0530. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZTBD2513427.