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 0x5e6d13c819b4e464ccdee37c96062991a432ecf166827a1d60da22534e453a1e. 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/8e17025b-045d-4f50-bcc3-982c5a81163b.json and https://artists.proofprofile.net/proofs/artist/8e17025b-045d-4f50-bcc3-982c5a81163b.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 0x84cfacdcb3b6d8df1681dfb32d4fe80431eaf9bc79b739a872fa8642f8562695. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/US2X61501561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e08edeab379f99e995a50b70f416aeae8ff633e9b63390e04c47aa1fd52e221. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/US2X61501563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453a271ae63d4972b7daf6e0eedae59ff92acd0473aa3ad47eb4b2643b6f87f0. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:24:15Z), 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/US2X61501566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1e41c44bd35454bdabda247053bbba4ed7b09768b79b1e783618d869aaf2a8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/US2X61501569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b7685f8d2fc3ebd632a763d16aee96e88e8c8c21cd0e6a2cc6f4364451155e. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/US2X61501572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390d1fa629375f809391e4cf9900210f7ea9eda97c0426633b664efc906a5712. 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/US2X61501573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e47ac377d2f16d6e02f3074e60ce97589a7979f6b10d6144606b351aa8182a1. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCACU1695423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0d85964a3749c9dbb17f28deeef0fbfa0c1ad071682ce359883844846dd9ed. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCACU1695426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b1784fb80c20975135aae9280e1120c6cab2f775e9469d3c9a0526ccf99eaf. 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/QMLD61408215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce778ca6104e80e450ea186b08f35658f938efb1603bc0c90eade39e6dfce51. 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/QMLD61408216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540aac9c7fdcbe0551a1a3b5905b54add551d602be9243e23478802bb0a83e65. 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/QMLD61408217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2880871b7b16ddeed75467ffe79fbf47772500feb93f3a9de0a2195ecce902a5. 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/QMLD61408218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfad3ced5842cfa438607e60d31e16e243969dead6fc52f4ffd55d8a0af58901. 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/QMLD61408219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9e20eb9c831628ce10560850aea2637c0392d722d0a9bcf034e475b5e853d8. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:12:14Z), 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/QMLD61408220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614b633924e4c432b0a750127c0a9c01b13a53c7535f6aa1a17d3c1399f14d36. 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/QMLD61408221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577aaf01d76b4867aa5f32fb41b2e883b1316fe788bd3c0b47fb6a098f5e3a29. 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/QMLD61408222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e16a64d4bf3d6ef1b2c559b3ff715c14b4951931cfcf7855fa093a96baeebf. 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/QMLD61408223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fe1aed12836906a98c6f9d042dd0bdaf6b0744dd315ee9c34182702c5bff0e. 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/QMLD61408224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91db02bec750eef429d82cdaea00ea34efa37eaef055afa8fc9d91d41c3c119. 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/QMLD61408225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda40fdd70b0afce3a6dfff4038a93dd9522159d70d2cc0e5981eddf0e9eb2fff. 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/QMLD61408226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64382c6e09f42ef9f075a8744a0c507f4a983e245ac5ed534ef8413fe6eaf40. 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/QMLD61408227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f17ed74041c5a8db64fb925d7bc2d7227f4fa78e8d7a93eb7eff6e0bff7659. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QMLD61408214.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf704c99d003bbcee161d125db39065fd04793c8eeeca3bed7023d486df9b768c. 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/QZHZ62032726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0491321cdb3eeb80ba25cdcfe013bfc06d4ecea845bf5f052dbbefd693a1c70d. 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/QMLD61404310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b9b5cf8d6c2de3167ce630af879d369a28f102167befb7bb368e34ae827471. 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/QMLD61404304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa516ee0e7b67d463b6702215b883b0cef1a86c7dfe4aa743b574230f971b69dc. 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/QMLD61404314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23a31b3274e12848640ab7eb7ab0c2911b06b3f087d9e83ce4dc68b799ce9c5. 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/QMLD61404302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeacbf66c5a1816e0b751b4ed4bcd99d1c5300b6976bd25632f004ec420372b89. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QMLD61404309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e500da59857671c04b0ed2eeab3f762952f80632368e993fae15f136da98767. 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/QZEQU2400526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce74afe3fc5c225224494bf38e9efa9e6a273c9d59384e35b4035f6ef56b713. 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/QZNJX2007848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b20a07e8df725b0f5007d6080ff2f0bd46f661001578cad6436f9b6742c836. 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/USCGJ2084430.
Sith Lords (feat. Twiztid & Young Wicked)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd99b26e22efe91d828d75c9ff7dfe57b92b9e2ca3c916af24303a2f1ff0544b. 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/USCGJ2093741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa2ad9fb62b697303a269c02f3c2e40f0bf54e5f23d5f560a73a3750df9fd0e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QMLD61404237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9119fe4e686ad1af5781883ab965e39212210de01cd37399a993f5f07cf9f015. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USCGJ2023398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd754a0b25186c1ec7cd71a469fd2ecb4fc465d64f93b7443c53ed6d91a211f69. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TCADG1737098.