Xiaoling may refer to the following from China: Deng Xiaoling (邓小玲; born 1974), female softball player who competed at the 2000 and 2004 Summer Olympics Lan Xiaoling (born 1993), Chinese team handball
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 0x0d523d2ec71a26ab7255d2b9648b45d057282027cc57c150331b674ffe50079f. 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/a59a9f4f-dbaf-45b7-9d9b-a0160acc84a7.json and https://artists.proofprofile.net/proofs/artist/a59a9f4f-dbaf-45b7-9d9b-a0160acc84a7.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 0xc346ccbacb2743d2dccfd6f5c9cc697837673991f8243682b51043f1f8893595. 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/QZES61934673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6355783836908a0158b253d55c4f9d4d9f472f3abd89ccc4cb92c80601664759. 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/QZFYZ2091838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019c402abe7665c79894928177d0e5de3dce4db4c640f52e5537978fde3419f6. 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/QZFZ32126949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ce502f03bf0c810f6bab0e187e05ab8a9a50ff05a4845374213bc6aa5247a8. 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/QZES82146790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdb234dbd8aff7a86d7d4b0ad3dcb2a8b054c6551dcca8d645b4157b40f9a8d. 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/QZNWQ2136250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91c7912919b3980aabbf2dc9e2b923b9db313b386206a76604741704746bc20. 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/QZHN92349127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34047c359a59f4f44a6a9730417b5c3e9ae207a3edcce25dffcc72b0f239171. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:46:54Z), 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/QZTAS2321780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90eb6963925bb3085154da780b483b9f1ae8ebb3a8313685b961839ae6e313a. 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/QZDA62497329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994751147545add628da5ef17b6969bb13808783de19c336bb6260100d170065. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZZ7Q2497512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfad22df82467bb42d3fbf380197c754845432121f7c03f45b68418348d84260. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZFZ42552766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fb12ef1b723fc40f4cb4b78fc83412675ab9ff44cb331f76bf367f4f54a0f1. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZES82529793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525e6afe7d58e262de27d4c479533d312c04717f792cb3997e0f61cdae89f593. 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/QZMEN2502382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449e689ac26a19d552bad5a010ac5bc9b9c7eca40bbd62462bae11367d37c90a. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZMEN2502383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb6ff55913fc8093169d35fe11796dda33164e0fffbb68f842e2b095cd2fdd6. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:17:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2502384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca404074a73bcddc180d46b5d16092d39f4bd67adca007e5a43cd8c48b110ba. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:27:01Z), 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/QZMEN2502385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723f8001f55a520321b0df89f1ba908a6b174d99d52c2d07992619bbcb38b98f. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZMEN2502386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d8a8510cb14b36693d0b3308e4685a68c2040604aa3b99aebeebd9b82fb283. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/QZMEN2502387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5270d06c3487c14c2f311de863357ccfac2e868ad11ecc6167a0df043e08d696. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2502388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b4bf9158ccfb6c1b0801cc42b77d42e93b261c3cf425c97a98f392c665500b. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZMEN2502389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d88c2617582b8fd42b2038267ab147da81d9e3b95b36f3aec78753f0030a7f. 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/QZZ7M2583037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68130a61019ad675d9da771efa453de100acc1d729c4864cbb77f193f42bef40. 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/QZZ7M2583038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43de795cf511e339e51833a40e9d016c40895dcddb00d866f7ee70ddc96dd42e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7M2583039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8e74fcb3d569dda098c0f2617bc2cb9590e2d3af274a3bb908d9c80ccac8d3. 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/QZZ7M2583040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19270af4cf9d11689a4150f82cdaeb55d98efeb4f3f6b7a7d36dd55066864655. 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/QZZ7M2583041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc11a560d43fed1697a6d6f767371c0f4578a41feb6b6123edcf25498122e0f2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:20:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7M2583042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79f835f0b1141c8db01f9333d0feafce6a9a3d06775738d3739e773c5dd5b50. 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/QZZ7M2583043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591b035694b7088eee6d549855eba8d5fae21582b934673e9d9b7f73e02a1861. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/QZZ7M2583044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bca679797e7adc1b46d727e88aaef8ec0149a437c0d022bf2b0f00b93273959. 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/QZZ7M2583045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0549e8773508cddaa6d760697980f27818f29befe3b6a2fcb3a9b285b0bf9a55. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZZ7M2583047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84cabad407644670ab0f9f164658f22e73366ea56df42bee73402267bfe9d16d. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T09:06:53Z), 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/QT6EE2593740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3069a078304789ca685f7836e26332b0dbe3ff39d9521dba6f9f2a71320a01. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:36:52Z), 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/TCJPC2463683.