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 0x3be5e541a2d04989d70b89c6b330145d71bcbc6b53d9849c03a6dff257393916. 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/e9290f5c-a0d5-44fc-af46-4421e57f9410.json and https://artists.proofprofile.net/proofs/artist/e9290f5c-a0d5-44fc-af46-4421e57f9410.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 0x619fbbfb956622c64b48508b2caff7580750933d5e228fe737a504514d9f77d1. 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/QMDA72225576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38137ac4a066b565db3061d1d051d23c0e032c112eb0109cd5388f362ec031d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QMFME2241128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc850e33bfa1d289230fa3048bfcc39078c2b87e291fbfa4d03300dd6af97e9. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:32:39Z), 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/QMFME2240967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57222789b8d790b5ad7852db89c6ebfe6e3e0b7c8aee904626bc8a7996bc58c8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QMDA72222433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21ce2f8b8a8ac4c317c523d68ad550cdd8613bcf0db0bc61de9781acdca22db. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR26V2070413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793efb06b79a099de8070e011a84756af49efcacbaf3f4a90f0c2ddf7e5db733. 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/QMFME2240365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4045604026f0dc6a371ee907cdc172ed0390b809a53099b61eb32cc7ad24f466. 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/VNR011018255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95df86a7035e2cb11df6a74a5059293e5e102d16e46db2dee4d1ef48c575886c. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/VNR011018259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184c4d0ce06c540c6d47db03ddb238770d52b961d17d3f285b057b7758ab9bc7. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:34:20Z), 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/VNR011018433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5647b4df8386533a99589523cc768e27eaf6ff673de20879a31f21981f25ce94. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/VNR011018105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba10706bf16dae868204e52563b02b9f01fbd7b675e47255a5beab7b343be4e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/VNR011018108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3fa1efe04d4b7ab23672642fe8bb3b5e1a823d5de32e8cf1d00e23bb1f6b88. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:10:59Z), 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/VNR011018111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357dcd458160abbacdbc1e7fb48e749d402d6b5ebb4db225f0cdab473764df1a. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/VNR011018112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf33c7fbd5ab3bbae1f03b9e807b8cc2a463886ab8b2333079a5fba6d56fb5b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:56:56Z), 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/VNR011017909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800775b13058d18940f446eb614e9a59415d5f95965935cc9fae246e380f50a2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:04:08Z), 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/VNR011017911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f51e4033bf05da6629295620f89ee347064971a3845c4ebf6976a6ab1b277c. 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/VNR011018273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8793b203349bda011de5a058356d5e2c6974022b2bf69ea8426cbc947d27f1. 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/VNR011018275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19538dbd4a672db105da57bdac0b02f38bf135e3822f558a0cdd66565f40b9b4. 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/VNR011018276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8271c102f97584c08250becbd65e7ef03dd9ed7738a2e7693c4fc895fdc52014. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/VNR011018603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe46a0d68e1258b1159a18e4cb8d7575c97b4ef1421edaf4e53316d5d9e9461. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR26V2055890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e51761235731b9cec4243bed74d04d7962035b1047aec7de2eaa3e796769e3. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/VNA0M1925367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2cce52f91570d8a1645d87c3c425a828a419b360bdd22252176c4e6fda7383. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:44:36Z), 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/QMFME2236676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287cdd8fcf46aa348ee2b7779dd9e8d23978224a4125c2870ff512b207c95538. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZWBE2405626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a30b0f0cd361e725b66c287420b5d00e63b94442b51ec5f9bcbabf1915c4f41. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QZWBE2405635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79536a6298b2a7558b78b33f960d2e3272d2867302c72bea1cc2c6cc7d031eb. 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/QZWBE2405043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec34cd628408128e3f7fe0f453ca21541442b4629efdb735688bdcf193ce660. Chain 2 (Bitcoin): anchored in block 957527 (2026-07-11T06:08:55Z), 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/QZWBE2406200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9942f3958f2cb4fa9a32f1d4b976cd263873fbeaf06be633044a01644a025c5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:05:21Z), 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/QZWBE2407600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d22d9a82d3e3e818af36b8e6e166a8a83e30352e48e12715d49e6c5fc20e90. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:47:15Z), 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/QZWBE2411081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c6d6fa10a0ef32b0fdcededc448a1513762adb8c13eef8363c91a92273e165. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZWBE2411100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a5cfb950699b0c894df24a7e93b4ba4159b699126e9643238655e442f312ac. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZWBE2409613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2289f3dee8277d706ae5ee1026625aac10edaa905fa55495073a6701b91bcc5. 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/QZYHM2314207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6c7e19af73faf75b0b4a6b4b47528f451a3e378fa164ba2fe399f41da26640. 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/QZYHM2314786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d92bd5837165b6d304e30f5aa841d98d1fb6442ffde5fa8b5f360b9c35d20d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZYHM2364618.
Sao Em Không Yêu Như Lời Em Hứa Remake 2
Chiếc Áo Cô Đơn (Remake) [Remastered 2023]
Lời Nói Dối Không Thật (Remastered 2023)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a069b24ac58ccd114a687f653c84ab54f056648750c7d9ac3954dd5fe3b2dcc. 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/QZYHM2402654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d05083227ac5cbe7e7e3c61b90d37a747ab2371cb96758383a543900567601d. 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/QZYHM2412679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657d3e6e029b66fecf779d09add69959532a2b041c1ff8b8fbb34e4c461ac2d5. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZYHM2416062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeceed5047617011bc037e09b517b3dda0636b7a453e00810b215683b184a2908. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/DGA052000228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece38b3b92b66ebaf168c45d03ac3b1467e16899ced09804d13944e77fba490d. 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/DGA052000227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dff5bb7ec652ce44d729ed93fbc90b5b17e253d52a11f916e14de84e14e7a32. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:30:40Z), 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/FR26V2086928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cd545a0adc42419f316278eefac4b304d3e97c98de2152824da3df6fd7aa64. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:54:42Z), 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/QM6N22578804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe56dad1888c75f864279228abe93191acf4960b84a55fa40a5c583ef3774f5. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:11:20Z), 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/QZYHM2505542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb11759bb0d837784b4dab3ef07acc73b5e12d774aa9fbbd4eb8d28fb88f663. 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/VNA1M2406796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ef43db3b9e8a0beccb1fa9e9dad16a30d9046f454822f97b3d444e92337b49. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:08:30Z), 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/VNA1M2406817.