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 0x140e0985cad33816be32885d17c7762f4d7be59c4f7fc35a75338ef6c4271734. 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/89ce600d-4d39-4601-9b47-ae0b095c8807.json and https://artists.proofprofile.net/proofs/artist/89ce600d-4d39-4601-9b47-ae0b095c8807.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 0x68df377194fe921cf12649080c622db7aebddf3760237b2d2fe5c44d019be565. 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/QZMER2304312.
kaleidoscope (from Young Pop Renegades, Vol. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36aebe5bfb4a38620008208a7d8b8ffbc633f3a48fd740379b55a3f66370b21. 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/GX8LD2377113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e52d394f8f7bb59ceae4e02c1548073f2749afaf3567739a2b830d2d7fe765. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMQ3X2402271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c24e9574cebf8dd623adc05dec5ec6878df8a429dbb7c29c86f33b8bb11e94. 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/QMQ3X2301921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b09cf403911d1c6f36986d579493dadabf7979f0c65671ff8ab9262bdfc08d. 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/QZK6F2300350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8e24bd7b5b545fed6bb85f1068f72fb0b8de218181c2efbcf83cb79f481f93. 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/QZK6J2388338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bbcac8dc50c177410018d7136f0a68e10901a337d7f28287b4756838943254. 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/QMQ3X2301689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51de8c28a8922b6418df79f00f3bd79fdc338928a283c0f12cffdd1d301c6d9. 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/QZHN82342870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7fa84052a267ee9d381f6f017c5f5c2aa7f55ba88b96ad24c50d851f18c3f9. 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/QZES82372444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b742c67d60e20279360b978e4cf5d7beffe414f0a852ad0a5d9f2a86c46fbc. 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/QZES52375013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2008d8820d332b789e74b2fa69ac0407ddecc7fcb4e1b8379d138f4083a749. 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/QZDA52393071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b769efa534c5d3fd53a95ece274cf72fb91ee4ad194eff0a5352bc4cdb56e09. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/QZTAZ2224289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bca146fadd91cf7b5fcf477c08b4e5c60c0dc2a057f2d7ef1ae3bef410ca89. 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/QZPLS2260379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a165c5f66411e51e6a8768ca2f82bc13c25187273b85f55ebddaa95e1b70eb. 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/QZNWX2203098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172e09c9bca81ae39ad0bbaf4c7cc6f9c5fb599a4b8790b272e3d41df7205690. 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/QZMEN2266957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87de6432e40ea7a7a107be02937862f9a518d5c0ed0f63547ac32779d088e33. 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/QZK6H2208493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b422cd6d859b78db52ea10d1e609538f7a56e577814fdfeac8fc68c26f8932. 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/QZK6M2219787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6bb55740a92fc89db245ebf15df3ed9d25333877b35410f4659b36f666dabc. 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/QZK6N2253272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12bff61e663ee9fa29569287f8ddd552709946f0b8b830683cf93bbf7cea676. 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/QZFZ32265245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79b05f4a7bdb9b1ec1ae5de548e2b967be443e64c7018784b13c73f80fdd1fa. 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/QZNWS2109629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c1aa9239bf4c8f10687c4418cd7935706491c0282ba0fcc45358359cf28e02. 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/QZFZ22259929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7db7759a4047878d5da677bcc73467a969c94bc64d6bf84f65f7f95546f0fa. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZNWW2097948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d78e71f747470e430c16ea9a50de2fee61cf541841bcce6fa807f2fbd257122. 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/QZFZ22259931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6713d63edf5a3d748e19831c6d360ce1b98665c802f33fdf387a533eabe9b7a. 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/QZTAU2124087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95023b1a281b558b5403051306761fd76587cadbe9e3cae765dd6199f6e39fa9. 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/QZNWZ2195182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78d52594130ce0c5dd0cf9a713be5b21d4c0216e7fc8705ea5842b84fbf2656. 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/QZPLS2108087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098c1685dbbbe73ba3b21a8e2504cc4a88aa3b336eea03f667e863ab7365a03a. 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/QZPLS2108088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95023b1a281b558b5403051306761fd76587cadbe9e3cae765dd6199f6e39fa9. 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/QZNWZ2195182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d3574a10ab51a0893b512fd82e5e30fb747db32da18f51fcfd421aedef5da6. 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/QZNWW2152622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79b05f4a7bdb9b1ec1ae5de548e2b967be443e64c7018784b13c73f80fdd1fa. 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/QZNWS2109629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66b5ea2d417fbea80512e6837bd4d4ba1a1105209b95740138b66c8519b1b4d. 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/QZMEN2101464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6ae494c1eabc456e6b491c4e8b9fca3edfd742042fcce4d8c345a6aa2d9571. 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/QZMEN2169283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124c6ef636e9205561ab53929148f6cfc1ff39a7f3e98e0d11fb3425c25a901f. 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/QZHNB2128090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6872a7b366b19a218b19a8f0821df9efa68bc7a6afa68c6edc15db5badef8dfe. 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/QZHN82108945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe809d30671d02c13367f0e29f4e90fd010ed0c6756fed627fff370f754b870bb. 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/QZES92137349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90eab087212c6f244e74e7ce2fa423a4f872f91d578713520bef40c53b92096. 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/QZFZ42104743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7db7759a4047878d5da677bcc73467a969c94bc64d6bf84f65f7f95546f0fa. 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/QZNWW2097948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0d6a9218114a894e6025954b0a449579ca2ce8ece629ee980923f0f05e1923. 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/QZNWW2010846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca83b585cb03e56eca71d9b04f64faa99f7539c727c3a55a767274bfe41809c0. 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/NL4NL2218732.
thanks (from Young Pop Renegades Vol. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba01aefdf4e6df7b5b3a0bc76da8d2eda9ea152678eb22f9322f04efe1cff18b. 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/GX8LD2356715.