Rinrin may refer to: People Qian Lin (born 1991), Chinese singer better known in Japan as Linlin, sometimes romanized as Rinrin Rintaro Tokunaga (born 1987), Japanese professional basketball player
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 0x03cf6c847fcf6047a90cb51cfe5a6c38491873c62712cabd4516e36d66b6c43c. 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/fd739183-f6f3-4f0e-a234-ffbdf048c247.json and https://artists.proofprofile.net/proofs/artist/fd739183-f6f3-4f0e-a234-ffbdf048c247.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 0x592f03f0ecb07dda20e2733178af5755373657236fe4bf6d139ceda9380f5dbf. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/QZHNC2013854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b784ea00c6975f7c0ca69d2f2e54170b53f951a1176ba28b7940e2e0d80366. 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/AUUGC1701127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6727f867d2bdb9ac68de78e8a121a28c697eeea61d06730db8fb1a407e46e70. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QMEU32109163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c7600baac3841d3203f53da68e4aa171a7e9be609229d4a128c1bd0f9f7a87. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QMEU32109164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1feef211ee68415cc633e9dfc2e5f61b800dc0913dddd3d644134bb5b866cbb1. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/QMEU32109165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871df8d7ec47b95462f4aeaf3713b1464dc9f8dceb61bf249ac8cc1698024304. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/GBEPN2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf0ef5001d03e8c60a9ec411d215f1a9c464d8f43ef599675ddd94f7b4a0b3c. 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/GBEPN2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f677cea5d5653199d84ee59eefef51926e768088a4535aa3354907d0d009c2. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/GBEPN2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32aed32a5424ca233a9e7bd550a293ddf3583c8782f1cc7fd13051f783a190ba. 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/AUGBT2433911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92604e91cab1eb00049b3985320ecf21c4e1a09ed98fe90fa275befae7423b2. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/AUGBT2428973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb34b283fc362d512d5493301ed87f9dac5d5e0bdea8061d71ac9aecfd06bd79. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/AUMEV2494219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101aa73f63a2d619b8286ca38e50ce268111e8008c7bd793c1258774863b9867. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/AUGBT2450353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32aed32a5424ca233a9e7bd550a293ddf3583c8782f1cc7fd13051f783a190ba. 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/AUGBT2433911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92604e91cab1eb00049b3985320ecf21c4e1a09ed98fe90fa275befae7423b2. 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/AUGBT2428973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efd8ff6d667b50e09e432f59f615cda341fa0deb78d15e8582d6869ab93ae5a. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/AUMEV2508322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb34b283fc362d512d5493301ed87f9dac5d5e0bdea8061d71ac9aecfd06bd79. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/AUMEV2494219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816cd7b85c171c6499ead41c89586f0889fccc0a6ecd52116b647fcf916375f3. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/UK9AV2501505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40984cdf437d0b5db363036def53145376ab6685369db950373b854009d9083. 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/UK9AV2501360.