Chi-Chi or Chi Chi may refer to: Geography Chi-chi, Nantou, a township in Taiwan People Chi Chi DeVayne, stage name of American drag queen Zavion Michael Davenport (1985–2020) Chi Chi Gonzalez (born
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 0xcae183e20bd3159f1fb4864779beb3b3fc2acb8a54373112d6503463e5a0fe66. 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/aefff322-32bf-440b-9af8-7a14f26c6e99.json and https://artists.proofprofile.net/proofs/artist/aefff322-32bf-440b-9af8-7a14f26c6e99.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 0x91a338d6cbc333a84d5cf2155e5bd2183b336ef9add000dc68aaa08383c9376c. 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/QZES71895177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c714fab406c02a7688e6b3e5f67e933344216434625ea687024b4c95faa694. 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/QZES71895178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c176bf0e960a3addd825899dba916c2b25bdc059d872899c9be054e2cb1097. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:29:17Z), 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/QZES61968014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52cfda0b0ed416401644b3b3c0d9af4a3ecc4e4363cb7a59995289621cdf7d6. 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/QZES71964518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3285d632d0c288e88d380edb7d4f1484c148baba1fd45494e42fa843db89b5e. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZHN51971305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b98ebeb3b8c5677529f102da9070bbbd5e91380a329618ddb3ed8773025682. 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/QZK6Q1929874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483e3c8144f61fa7096fce7366ebeaa83a4b3158129a1c3beb002ae4704b4772. 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/QZK6P1906253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4db7a0054508afb33a39bf3fffcf755a5200833421e3db8f0b8e28175dad26. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/QZK6H2023110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc50a5fb2d1e94a9dc83cda2d72ff1986d0eb38e02b4c00c96fd6157e5d0a22a. 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/QZFZ52110290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5c81db9e8edb5c35bd7630267777152d6407d5838d7a27f845cbc2d37497a8. 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/QZHN52112013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2c0ae314fd89338937d069682928736a16a0a8684d9b4f11fc2c35e5b6cb4b. 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/QZNWX2314229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdddd2e2fd41b898c30882a5f30d179bfbb4ee382f477d97df2f015452a2b409. 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/QZWFJ2397724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3863b8c7c666bfa2d19f73d2eecb1c461365c4b8e22d9f9208ee26e65d0544d0. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZK6G2484171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5294a54e13e28aff6f89531e1f28ca408e8fa81ff34acb5b22db6fe164333e8c. 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/QZWFW2402356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf935769b7802606d076e6e23559f66ec5f6fd9a99fab61ec9779e301a10bf3b5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZRP52531484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcd4530181258630a080138d70893d146bbf5e9a61a75f71b671845d8d2151f. 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/QZK6L2488014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0541f3f0e8e30c273d691b459492ee14bfff209c6048e6d464015b1601e65c76. 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/TCAHD2329118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54847d06f2cffa63abcae6094311623d06ea6700a0653bdd40a78d76000967d2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM42K2021790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adbe43e822dad2e7336b94d1a82c1ba314ed6edec3fc2bac07bc9dd4af13e06. 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/QM42K2075116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5037cb2ce3f6b1365b544dfd2366fd47cee410d2d0f9957d226af414a28fa0. 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/QM42K2078593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd130cddcb357eeaa4d285e9be6132d8401ccf35c02999c00982367e5fd1407. 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/QM42K2050452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8646b7e938837632ecc18b245f639cd8c8655f922815e0a04e7bba1b9445aba. 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/QM42K2065088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f67d605700bc097ece3979e1a14375ec63f5e834c3cf6c803a049ec4929c11. 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/QM42K2003592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc824850f35f03f2cfb47154d27845c5c0d822dda0a1cf920a190603f9ab1f7d1. 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/QM42K2063752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478aa72d649426d54ac7387af340f53f775a97fa4e1edc5c309b006b67938478. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZFZ22000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d750728cf509715adb594dad59b8c9aa06fb494c926ec7f428252735e09ff2. 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/QZTAS2187921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7fd8922e17d8a3f30a57833671a3800cdb05324e04343084820bba807947f2. 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/QZNWQ2039333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf89a21ba64a884d91e0c04cc67159ae67bdb2fe8f0d7d73f1f12519111438da. 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/QZFZ32065288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3528108e80714e044f813b4cae91718d4b3b5191fc9df5e15f565f33045908. 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/QZK6N2140092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5095d2634776ed8e196e86ce67d0376d7250e2e7317651758b934f4675f40697. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZK6N2274891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67c5b0dba63c73a25e809800416e8866281c91f1cd0a6b984708e4351d8598e. 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/QZDA62357420.