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 0xf8b0635efccae61925929e95da4c01b30593ae1790dfcbbcff449706951d9118. 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/99de986c-308f-43cf-9204-971723bb2da8.json and https://artists.proofprofile.net/proofs/artist/99de986c-308f-43cf-9204-971723bb2da8.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 0x072f4f0f76a0bf0f19105454507b18a4bdd8d8d1c45df68e2c6f62a2ad61846c. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/QZHZD2153529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd552ca4d820605ce5d2f9bad4e005d558e2cbc73a632fea200a4e011888cba9f. 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/SE6TI2195659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a18d81c4ee814cb425da0a0872a313d5e0c021f3a79eedaf80b71ac928529cf. 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/SE5752208225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2b2c4f7b3f28ad22d9b5e960a79cd0e03ea793579896f43286ba78f18618da. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTH92295478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06eb019de5e4b6f4559721b72ffddf67af55fd2e38ee367cf359785a33ee634c. 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/SE5752208227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82940140e4a082bd24f11b724a82b4fa4193033c4adbb6fd77f8ad2f2020dfde. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/SE5752208228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9455602f2d7d7792b2b989b95df28fef42866941fed235db5569ce00cc232b. 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/SE5752208230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9914e1263889c7eb60cfd298fcda3607204f752f5243b4416ddd54138756180. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/SE5752208231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae4f5c01963f84c738b1cbfbe11cce0f82c166a6429a68f1c010b6ccac65368. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/SE5752208232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd783d93133a07d8f985306b8a91adaec68df1499a0d79b0a4634e683c00e6c. 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/SE6QE2295915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace555f81edb6750e709a11f44bc00d091551dfe4be2a5f0f9b34978ee2e26ad. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZHZD2204273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf82e022d0bf43ba259bb1b56d748e22a83b9427a8a0fde6d32a3a58cf857671. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/SE66N2207724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5829f209b957fc272eab88b5637e8d4780e19746c4b26d2e5d84c2f53ec70e3. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/SE66N2227418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3382992f79de7b699b4f55a069c5b1a137f233843491f5dbaf49cd6db6b75645. 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/SE66N2207726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169d7eda6b3771c87817bb974a3294561c67422c1973e83267b81ecba7b8d1d1. 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/QZNWX2386467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ca065829b140f6675c47da50c2dd96770c3938b69ebc52c5abf6fcc04dbc73. 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/QZNWX2386468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0026113b980f32420b6778a4d531a4ccecec72b8799397820eeaeb2e31559b1. 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/QZNWX2386470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bedd40dbdc3f7566b088106d917fff28fe04b98411bfc62abadbf896a56566e. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWX2386471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff25fcc8e9924b2a45fe54d55c4242806bd9fd405ae1bbc4c98ea4ad9a729b1d. 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/QZNWX2386472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff4e788d233c242792fe9ab996e4efb56a3bbd289001daa69022bd5658a2cb4. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZJRC2251808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128f4aa62924993d4d7f2ccc691b113a63c32fba74b11d85dacfa1fbbf0e3efc. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/SE6SA2225853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d4d8fbf2015a6bc33fe57d00b624b05dd71acd35b032b1661498e16e68ba59. 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/QZDA82370796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93a4608b4c60e81119e6cd30f6f76e07a10296221d3189a768756b3fce5163a. 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/QZDA82370798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac39daa4853e2d78c90e06af90fb0c0b80c823138b24ffd813873e567676a1e. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZDA82370801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50cabbfca9ba9158a41d7810cac45d5c41195fa598e60d7d19674db5f54b4fe. 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/QZDA82370802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb380b4ea45146223933cb78bbd353c43898f84bb07c11d9881e54223a1e5353d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZDA82370804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410e1108a7ff2d6e813ff2b4dbf79831613700131908cd5727e7d05bbccdb253. 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/QZDA82370805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fddfa724771b7cb9dac4848ef89deb3fe10466ed08f6c85f84e20854f1ad9dc. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZFP52346111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f17562f189a45152c143a3865899a80781634091017006d6b42f6856472189. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFP52346109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa659be07a6a9e277ac219822dcc8e1fe6da6745138f63fbf9b680e20c976da6c. 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/QZFP52346108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6b88e7f4d7a5a1c845ce5e2768d527438ae1eb5794f5cad8be02bf39678f7a. 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/QZQAY2358349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e6e69e816fdeab65b875dfa10255c5050f5e8d74d84b6fad7b77a0f78eb41e. 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/QZTBB2206323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa315920b345c0b5d9aac6cf7e633e46a636234544ed933209105c3cdd9f848b3. 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/QZTBB2206318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc419803fd44fcde93181fb2a434ec26100638a996ccac15306772842ed371189. 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/QZTBB2206322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2e6c60b035b2eab6496049f5cdea4900cb750f59d6850c057f27f8c82ec0cf. 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/QZTBB2206324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4f3d95e5e3c803a6bde649ce16d4560b1b1a4042ec19703b7fce133a62eda4. 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/QZTBB2206317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8585bcec37e7bcd47755ebddae07321d85689acac1acfbc932deda9f6fbfd35. 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/QZTBB2206319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80e33fc32bf1a46c1cadcc046ae35479c2248d85349a9f41393fcfb3abcd173. 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/QZTBB2206320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2848ef3b0340f9d896a13e4290494c1abc9178d44f47abedf7ff3ce3c80d1fc. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB42396309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a2c6bda3be56e343f9db9c9124ad1ccb9412e3b902de0ec8d98b2368c95af2. 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/QZFYX2376377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110c199008c7ec1b4a26ab7d2d6394d52dd9dbf28efd753883cdfd344729deec. 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/QZNWS2294102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcfc853de5cf25255d17c3f9b10b444d4ff8d214f20242bc8b88ed504e9fc4d. 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/QZHNA2231591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc66f76a849057aaba2a057915039bce8db79df8f5e74085d9c4db8034d01d8c. 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/QZMEQ2220487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b96693c5bc973208db0750fed820589c1440535902acaf413052bfd5f89a817. 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/QZMEQ2220490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8f6db619ed09bf6a3042369277133c1fd751e8e27dbbb65c950e69f51b6d84. 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/QZRP42204533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1491b1d047ee1d4119839d206334c5c432a86df7339bbf4be0c75e732d9be64a. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/QZRP42204537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80acc0984367c3c91d537919db6447a53570ff6b01a455d54707be4945e7a21b. 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/QZRP42204538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d69b5cc020aa7d6885d8f8690f994740ca95d6af2ccbf686f90e0282e4cd24d. 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/QZRP42204540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b417c391d63ef039af8d360a2e5a87181f9af2d7f1544c08a772051d1d2d2dd. 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/QZRP42204541.