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 0x397f7c8bc3db07ed81a4330d74eb028211d7193a114e07e61a405cbb5b32fb39. 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/ea62ca27-4cbd-47ad-ad83-45bdfc9cd208.json and https://artists.proofprofile.net/proofs/artist/ea62ca27-4cbd-47ad-ad83-45bdfc9cd208.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 0xb620d2123669774a370f3bb0a40364c91588d53285fc2b91bfac8f4bd76ef18c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBUM70604275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d9c0fa732ea5a2a9a315a7a32d8102fa8b3c9ecf2bdf882486f18459ea0232. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:57:22Z), 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/USVPR0830898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8605ac7147e5bb6f757dc833cc84a63276a8b201b7601ac2c88bfc0805c5112f. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:38:48Z), 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/JMC711300562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a1471f4c3e3205a2261d4099de1ba73be38286ea4cfa1f2ecd35e132b26221. 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/JMC711300564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09403eab542cd19b63d03b26c98e080e909144acf28b66aa4c48915d2bb97af6. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), 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/GBBZV9306822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252143f6a8f93d25c98cad56f8e7dd648c478e613f99a3d6ac4c058a4e1169b8. 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/USVPR9705933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249e97e44b780de86db2cb35dacaf8015267340a65fe1cbaaf2df6cea179e83f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USVPR0831167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202b40921f9e8c67e2fb0f88db2b6d78b22cccdd4bcbbe0b24f82ae17f797ec5. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USVPR0831168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d440d77bf465341b33c3e1593657db7b91d2e4f5b6dd8079827756d99861524. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USVPR0831170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd846d6edade86c7ea07f9f030f45ea94fdd9ad905deaf286f0f5b8e57afc10. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USVPR9200207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ec2bbc799cff3cbf5d9dc4521245731fa6588e891d44a5c87e0733816b5f28. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USVPR9500801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7f18cbd52051d26245dc45d4972e19296a59136fb5d11f0be947559272bbd1. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:27:47Z), 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/USVPR0107361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6eaa9fbb6ec8bcd5e448195609f17918b011a66b39292afbc0bd10027495369. 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/USVPR0107363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eee801b5569317ac514be917372c45cfa8178142668317941b9f64bb2d6702a. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USVPR9906649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a759fb07424f8f97a97698d78e92dc9d7c139acb2e42d8dbd27d3262c021ebe. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:56:24Z), 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/USVPR9906653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189174771625d8bd03ae148b579721e8d8d849e071d48b91aaaa845546d008a0. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USVPR9906654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399f8afa760b924954d324b7810d6e1a6a1620aa806d5e12625dd671b9042635. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/USVPR9906656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15dd25065b6446cc0cf729fd5e5c6c1d747b952ec46edb1b6e2bf38395dd0bc. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USVPR9906657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d13499e41c61f268884aed2815f8e3a4b7adbfd175b205f2ab1ca20b16e679e. 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/USVPR9906658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf00adfc4009d72cbc828851932cf653d0332a49932c83f2b9450cb190ce67e. 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/USVPR0207880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb2c422bb06674c626671b45157889d1b5cdf2ee080488baa0a627ae9905148. 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/USVPR0207883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5b5c46a1aa246b2238907d469f81d552aff6bd986a5c6411efda84680d7367. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:26:30Z), 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/USVPR0207885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd919c4c3f5730bf95b77d540be21fe59cdb6a1104d7834c610af77072e97f2e. 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/USVPR0309471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9464ed37cacc6415b3c08a484aea60610865c480336a6550980f6959e998c428. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:39:02Z), 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/USVPR0309344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08a7ca23f02b7095fc97fb854d6984565b8885d8ebe83f30f0061790a4a288c. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USVPR0309345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7e428c7c1dd6ab1155071249dbf5d9586c724619b041dd8514f99c3a37c90b. 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/USVPR0309346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4946d542dcf087996a5cea727d63d94d7d8c2461281b96a15913a7aea57ceaa3. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/USVPR0309348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9073a8d8cbfa43112e2879b01c697643bd80710af7cdd60b3e6e343fead2da68. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:01:14Z), 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/USVPR0309349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96eb920097e7e12652d463f7bc8d754c55887acc022a8336736ac4cd19bae12c. 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/USVPR0309350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305c6b788472b299f010df6155f529d394a579dfb78d8d890ec8dc342706a3ba. 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/USVPR0309351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d0613488b42186b7c03cefbf57a4f19d9c2f30879dc06626386a455d4b8986. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/USVPR0309352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1acc7bf477d435326fa77499d3b093f99727fb994b2a49d8c51236f478647402. 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/USVPR0309353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0197b7888d761ce12dd80dd66659a78297f7640a67464d87b104a140a36d4a89. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T14:45:34Z), 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/USVPR0309354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691d993e33c0f81a8f70b2a553a4219e1b34126d0be88569e428e15eee49c9f5. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/USVPR9500577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa203ca8e9710257228715744ec3573259a310be828a1588f78b77dfe950f0ea5. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:14:42Z), 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/USVPR9500579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f3217db3d2dfd0243bb8ed9661768d824f12c70591bb190f03b7f6e359e105. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:45:12Z), 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/USVPR1100200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb92b37d4db3259ac886cfb4ffdba5bd10e4b85a56d0b255c91749a739fd9833. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JMF571100040.
Penthouse Flashback Series (Sanchez) Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d7f6bf1213117b039da924c315ea21e2c1db4103c4eae17d2f74f6fed02b91. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/JMC711300353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8319c347ccaa7a8bd7b09d872ad824406e7793c3d1107130a302a7c490096a80. 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/JMC711300357.
Penthouse Flashback Series (Sanchez) Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0b56338de0fc96592d024a18ecdc6bfe00c0b9ccb557d807ad804852d4da3b. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/USQY51337683.
Yes We Wanna Know (R.I.P - Trayvon Martin) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e6b3087e27eab6343c48f07631f426aafd15c1e7a50cbdf19158f1db66e3f6. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/GBCMZ0501008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17adc7cc41021e78eb71e980a9470f6bc13ef7b461132d274fae6a6286f8eab. 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/GBVVQ1100245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd584f2dbabf0d7b0338956858f94c5f0215725e0040ee85b930d3f810cd4ba20. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GMCMZ0374275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9de0393c28ded597c109de934f146b336ce601c6dbd6ea80213b092cd6a2a7. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZPBC2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e7e0b9583f73f18efb707ce0b32556607987bf8676b9784090f3fc1a03be5c. 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/QZWFW2521156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734bf8f14b0735d71c763cc749a3dbd8f87e16e25e5a15a1e830cc7ff86b5e50. 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/US25T9918781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c3e8653f03015135e3a1e2bd434582334f4089d2b86e08471362a3025bb78a. 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/US25T9918787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6268ade862d10c9306a471008c2b78e63c8fb15305d5538aceeea6554e355656. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USVPR9601006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1758bd3136cbaecdb62efc701ff163139da92b2ce2adf693d728568779998ef. 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/JMC701200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34f6dfb1f6206f4ad7cab2a318ae7baa7771372a87c587f7c5a103eef80f3af. 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/QM4TX2458310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0704066ed66a64f635b583c0e573de7a10d770747d24d9fee5b8d54bb5e1bc1. 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/GBVVQ2300486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414c124686ea473ed6508f148f61c0f58aabbb09f7fb48f3183af073f415ebb4. 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/USVPR9705930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6311905eb5f019afc936f189149c29eb34dd47a2b84a325dd42cd8731316c09. 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/USVPR0309376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f7973561b69361f7bf1ca3709d6135d6429372e6296fa8246764e5f0aee82f. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/USVPR1900257.
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 0xe65336887f5766bf674ea0f0805e70f6d03f1aa008317db7b1c56485838e5b82. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QM4TW2306579.