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 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 0x2df83139ba1620425ffee4ee85148a1dee2c34db2d31e33bdb5789e3e0561ed0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7556c437-ee10-4108-9ce9-0f672140b745.json and https://artists.proofprofile.net/proofs/artist/7556c437-ee10-4108-9ce9-0f672140b745.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 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 0xe0d714718377b3a4edbb8a0aab0c1b1eebf81aab2635462e12882ede3f02a9e8. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZFYY2016717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4247e867ce7d382fb61d080a689a19f6339684c38d61443b7df794a3258c961. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZFYY2016331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ef975df44223288340fe768f58fec282711f834d045a24e109959d7d8f8c91. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZFYY2016332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf5dcaa3306618348e9a8b342f8fb245fc6e42bccb073ca74fc98fd3595d35e. 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/QZFYY2016333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360adbdad0ba60d9571f50c3a153698b8ed3ab34fbb94f02005714300f0dde3a. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/QZFYY2018637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3e71560e14c5f0ecd51c47fe4d541f9fbeb46cb5ab3e12f88670d433fd1a63. 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/QZFYY2018638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be67806ed33992649e9f6b5937301e63bc897e6826485d5d9419450c7867631. 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/QZFYY2018636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602c3d829123a5b56c06679bf1f23a71eef7ae0e7297fd38161174e2cf206f1b. 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/QZDA52079618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae07e69e478b22c52e891f1fce8c7f587dab562bd277f438e31c360f92fcaac. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZDA52079620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d0250f659c1ccd92272e13623233c85b40eac952f2908a0515f730bc214536. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZHN42058079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6914d2c6fa7833e429afcc8e8a54ba5ae75654a2b2368ea1ff8c1d6a2b1588b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZNWR2097360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a722c53a1b5e2b5b8dceda7aa9ad26e7b48701fc99150b09cec78697cb9123. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZNWR2094699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a1aad4de4d2fe7437de67a21a63d3bd238e9632c379c98f2ec5ca0166be4e6. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/QZNWR2094725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307a12e95e680e5fd12276f4d31bd885a21d1a5be21b6d2e8819a3b9cbfa8f7f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZHN62159770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc340dcebc36b1d71284bea29621c22a6abd0998811e0368573bf0e6f91dbf921. 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/QZHN62159771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe292825cfc268b2d780594f16293fda30e429af964fb660fd66f0546cc3ba71b. 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/QZHN62159772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820a93348e77722dc9329415ad200bc39e68a2b55aa5245e1b6d501df95792a0. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZHN62159773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2b389b0007f386f1ec9ed4a07b0d1ed5da27bf041eb764109f3f078eab8f6b. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/QZHN62159774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c343f7f956c7b92c5001d7daf08f414abb604202e2c908ae947e1f688f6fad9. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZHN62159775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3645d11964924a01efe17222afc020313af7b6d27475a9198c684b37637be11. 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/QZHN62159776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb65ef8740ad50f1ab9f230513ba3cc737275a6ed94fe37e2deaa31e7449557. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZK6K2127958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd611b14f0442d2f8f01170405883167674ea37d83cabc25a594acc1c7d7d2947. 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/QZMEQ2125002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d5f69e5ea3a0fd3ec8ee7e2a0a145889e637abd55cb6b32757ff1a474c228a. 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/QZES92207392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0209ef51c0d5e0403a0e72d25cd991899c10e1aeea491cfc0705df8fc8ac00a. 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/QZES92207393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43af071dad0044a6ff60f90c0cc11291ae527157483f1b5fb2ef564313f48243. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZES92207394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbe9c3a0e9c91bd0a470fb73dadb4a4df05b50fb748a1c0800fe59ed4019499. 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/QZES92207395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb566be31bfe9de1add6a1298764480a78e86c03ccd167fc4f2404a6a28ebee5e. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZES92207396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e374aabc356df1d5c221b9ac0bababd11a691a960f19e49be7e0e41506ec7bb. 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/QZK6Q2278929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfd9cffddea3d9501f14b13af29869ceab2c72ee70e718ba57c92909a06e3dc. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZNWV2243224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa97b70c6a0af414a56e8e67a60ca073605a27071603476fa8f8dc515a28ed7. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QZTAZ2219370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10854cfd3522218bc30680942f52decd793194acc34e08d5204d68bf36f296d. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZTB92233887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d587030bc790cc9e9a5ced5f9b148317a50af1955ce51079cf2d120d4234a5. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZTB92233888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0da90c226a0080adf19600262f1a69cd766afdabbbfbdea4a12b5b0dc41135e. 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/QZTB92233893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6980072955bcb4f092ab31d837a3e50ea05dc71a902f12fe956a94cd76fb41a7. 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/QZDA72359328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6206941f5e33c4d7537f2e98dd3f5291d8c6414fc8ac954f7b8785a1804f2e96. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZK6Q2385718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586b22656e2deab20e6dd60ac9d38eb278841da56cc79ee06128b59577045df4. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZNWT2331185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb24ae0b8fe950143c1db95fbf97880be9297652aed9894b210e5506ef5f55aa. 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/QZNWT2331189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0db2ef2f56d881404f1b65db66dbdd04c45a1fc3c900e2e04204174d4e8d4a. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZNWT2331191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069946ea0d9b065647756d9244dea9016c1d26ad2795ddf51ca8857e4026ff96. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZK6M2474121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf733157169195df958bd6cd41f9f5080dec107430b62a34f5d4dce9a48d6c1ad. 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/QZK6M2474122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d050b15b12a637aa59203447f31b111a2b2b14f326543b069545e7f69d53bee. 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/QZK6M2474123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965e52f78d01dc7b6204489c1c65de71b5851b7ee08f48ac3a185e7f8536ca98. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZK6M2474124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa320f455bdebeb504022641ea4b7d67ea830e66203fd8fa12399b44f701987. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZK6M2474125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a2509de541e1b7b67cdde64f79d87a814bb955efc282a933678160648b899d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZK6M2474126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2442b252e817bde9e06c634239d0e249d0d0dbd2b45f1e6ca76e100f0dc62e34. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZK6M2474127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcc857bccdaff8da623ac78e2ef4a1ca7aef1fa1d556897fa32c7832c95fbd5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZK6M2474131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a7064d1de0d7830c1e6474682b2b2494bfb1863567c8993516c19bc13c4af7. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/QZK6M2474132.