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 0xc6f15ec19d98f6c1d27d685e5fb53ad715035afb0383c1ef2bb4ef90234f5bd4. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ef27d92-37c0-42db-ba59-4eea39ec9640.json and https://artists.proofprofile.net/proofs/artist/9ef27d92-37c0-42db-ba59-4eea39ec9640.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 0xbd4ac079f53d25cfe146b9bc1812c4203fd6bafbf8d33fc1b8ceddadd73fea4b. 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/TCADZ1875892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4170de57f89ae552b99ae9c7caad7b9a9919d6217c43a3ec327f97e69161c85. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCADZ1875897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5896ce72f664b3e2875614df834e2de6201eafbdce2551585b3682e06fb5499b. 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/TCADZ1875969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a02fedc4b9c98d5c49b006c93043f34b432bab25b69b33328be3419c877d35. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/TCADZ1875893.
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 0x8f74841086e52a80ed92abf9edd054bc0807e9f078723adb7fd318f0fc3e38f5. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/TCADZ1875898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4490acdc23b5de8f2accf548297fa16d5998195ab20e49ed826c81ec055c9bae. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/TCADZ1875905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e07107269fe15e821b5604bb68205ed614115b91a6f59ca49d806636722fd1c. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/TCADZ1875906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475870f6455c0d6c97289e12fdf024ef5b39f84214498bfa47c9d90fe4e217b6. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/TCADZ1875974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6620f77f7e5ca946b5869f225f6bf6ebb6a8f2d74759a10e92fd3fb8323094. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCAEH1964336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2681c01aafb8e1a0dee1fa22fc153c005908963703a1aaaa607bde0b0e9f83. 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/TCAEB1941807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563e5fd3c1ce82deb310a5c2090f4fef1e17118f177d999b04c6e3f15908b23e. 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/TCAEH1964390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c4e58dd5f02203db35dd65391e70039ca1051a278b312a8b0a82f9b5788a2c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCAEH1964396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da760505995136425785dfef787f452911307fc5094c96f975e6f28703db287. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCAEH1964421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c300ab776362bdecf5a2ef1ffddb6dd7573402c979193d0f5cc3becae037a18. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/TCAEH1964317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9966092ffc7558222d6a30d24ba754b59c7b88fb9d1436bc1326a88e97a5f7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCAEH1964325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6322202abbe1ab5729da98cf7efde4a411e44eac72bb9987f392b572f1d29d55. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/TCAEH1964332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda507af685d52dd648bec1ce2313f2aec8c47c7b78afc367da6c41d54c3b96cc. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TCAEH1964364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3226d04f7d2c66a1cf508f3d81ff3113ac107c24d23d7a0611df1a9106c0fd5. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/TCAEH1964369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3b3c94342bdbc361188ce575ef98a8ba005b6f5034bb0e9cc9e6420c7681e6. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TCAEH1964372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1e70c29b3f3ee9c89c6d0649cd9ac929a60dff8e0cf0781c5afc2ca38af5a4. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/TCAEH1964405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd8d6ce99493f0d3b2fe77e7946cafd452e3f60345f2dbd0edb9302f9ea73cc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCAEH1964428.
Street Lights (Stxndby) [feat. Astro Centauri]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f5b525a2dd6e22d008f828b811463f0c1efb707f9d5035293cfdab1454ec0a. 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/ITIWE2000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebf50a3a9835c537d3127e960d064786cc161f6e866710de196e3d2c45ae604. 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/ITIWE2000087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c3d12f911a2c30856403b8ac02b80ebbca17cc485fc40114324e978a340081. 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/ITIWE2000088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07303d894a89328ce2a3c6852afbe3aa36fbe2e4179a8a57235088639c65cdc. 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/ITIWE2000089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c050b469302f53e48264c7f9d2bc0da5928cb9d24e498e0f15746ce8c234fc. 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/ITIWE2000091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316c0a2ee33da4db865103d008acb6e3f98467857964a3dade2b7e9fc0873da8. 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/ITIWE2000092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae683e98dc0d2ed8a90f58a951ed0052b0cd581f9eb50ca90775dfac56dbef6d. 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/ITIWE2000226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae317774ff2480029ea2dd8767ec2be098fc3c3bdec9e4f71267f2de97320d2. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:44:15Z), 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/QZDA42150530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59ee0d491d270b608746f4b072da80be2e914ec4add3dc20212ef7a8664c81b. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:04:31Z), 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/QZDA42150531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638000fbd7525afd441f94e9486d945e928fd4489580a1963244bf310dc8e3c2. 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/QZDA42150532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bfa8395ae51593c4a1d8aaee5418df3e758dfd6de4684280efdc5cc7983677. 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/QZHNB2134896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef865aa7dbbbfb220ddca9ae73f910b9b3eb3f2c3f55cdf31c6b11917bb11c0b. 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/QZDA62291911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72e3ccad24d61956a48bb6b6408540f0f5ccd5131407d1469068e83cfdc4d9d. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:44:49Z), 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/QZES92357200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c09f805f63489cfd0ebcea31d72bbd4adf71878121421fd04351f4058e29144. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:20:40Z), 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/QZK6L2485957.