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 0x99565869f94b942ccb6c53b1de45e1f2c814360d3d555eed501bf28bb2496cd1. 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/adbfdd52-c115-43a6-ac7a-b69c9291353c.json and https://artists.proofprofile.net/proofs/artist/adbfdd52-c115-43a6-ac7a-b69c9291353c.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 0xf33bd52ed3f8e74b1d825dba6c6c4d027b2eda57b162a10d05fef599701fb90c. 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/USL4Q1751623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc26e6bafb504568c8be0689eff6831e832dffc024ce2edeed74f0adbdc7cf7f. 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/QZBJY1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e86c54aee733acb9636d232c229db924780640eeb3ffa43cd24b9e9131e54ff. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:43:44Z), 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/QZDA61925371.
I Can't Breathe (George Floyd) [feat. Lambo Anlo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc26e6bafb504568c8be0689eff6831e832dffc024ce2edeed74f0adbdc7cf7f. 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/QZBJY1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba346f75ec9b184e36effc26a8489e894a6c78614f4590dc52ab07f293c8edc. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZHN32239686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbea2dc0cbd53796884f2ec26484b059614383cb7133b7c741801f9483e5d8a4. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTB22267811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082a6262c72f76e62425a9e95648fcc396b0014c3664a2c7081d4777171ab95c. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:46:20Z), 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/QZTB52297666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b160b94ef70ede0cbe60eb07dd9fe6b9560ba1363103a1c53fdfd339c952014. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZDA42361718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ebf287f293e3d6ff5931eaaede65fcee03f3b76dbc14ab7ffc05a50a53ab35. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZES92354911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58824b3f892b93254bf43c22469068b00869c29ef448af7be768cb320734cb44. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/SGB502380443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2144826840324318d62969983d4e2a3a75ec8b72f26d1e0937d695f04c05fde6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZPLR2211400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbea2dc0cbd53796884f2ec26484b059614383cb7133b7c741801f9483e5d8a4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZTB22267811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b160b94ef70ede0cbe60eb07dd9fe6b9560ba1363103a1c53fdfd339c952014. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZDA42361718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc26e6bafb504568c8be0689eff6831e832dffc024ce2edeed74f0adbdc7cf7f. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZBJY1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55405a3c3671632eaaecf998c59871288250c1858f4145574e628cf22360b649. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZNWZ2399623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78739f410b4356fec78a1d59893d67986b6a0cac7a0bae0a4ff39261430cc993. 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/QZWFG2375130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf5699a4a31f4cd7cd75e72d4ac6ced11a9a82abf6cbf2abf552e1031b3b2c5. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZFYZ2493682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4d06a7c13e46913f85a22bc6aa5b711e67ec25bd597a64123db169754e0883. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZFZ72415660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca97ec6c2da17668b99dcb5f9850306246e583a7d33c3a798d8b3ee4d34aa29. 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/QZHN42423854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d17f4d33a135dd4a571df04d88ca3c539095ab66060a543336094a94a18c73. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHN42423855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af93f6d1134188c28b542b70e3c90961e0824bba166ca231b80d09a93b310fc. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZNWS2583416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3bb47ba4602801bb74d95869d26868bfb3c7da46ab3004bba9598004f101e4. 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/QZNWS2583417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82b11ef8bf56a55d0537be5e0039d4254c17e464b138ba87e9b2245f98d6c97. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZNWS2583418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae1030b1e6d0f4330c767aaa0332528cbc45caf11f8a941980002234fdcc006. 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/QZNWS2583421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d9f50f2a6e1dc643b8084ea329352620cf6b0a4275c55cfeab9f44bdef5da5. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:34:05Z), 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/QZNWS2583422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ea6f4cc5782439aa561ee435eb94f319e2c1aac656d4c08c1939c7b6bd26d1. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:57:00Z), 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/QZNWS2583423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173acc3f77d8b807344e8ec37b9532cdeb9d06acda766241b4b72c091a634ec9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-21T08:26:09Z), 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/QZWFU2543277.