Quin may refer to: Quin (name), including a list of people with the name Quiñ, American singer Bianca Quiñones Quin (Sigilverse), a fictional planet Quin, County Clare, a village in County Clare,
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 0x03f3942599ffc61279c799334136aea111a9c4a99326fe1d4a0d6923a2d4c9d2. 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/541f410e-80f6-4632-9add-e42ead124d7c.json and https://artists.proofprofile.net/proofs/artist/541f410e-80f6-4632-9add-e42ead124d7c.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 0xf3cbb113e003989be322126e353700b7d99b137c397b86fd2b045898030afb37. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/TCACP1662806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bb124c083afe90c2f7cd37bcd422a1e921bcd7e3efe30c528b408cfacc249e. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/GBWWP1602385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49576aa047c0901de7c7e9962b5ef6ef10440856e8766dce1e06a31a82360aef. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/GBWWP1602386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe888b2d4d002335c03f23084b439020ebc6f50b933f66fc54abda4063514c309. 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/GBWWP1602387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7350185737b8e5c337a040590f0fc0a2dd88ad02dd0ac5bfe546a554c05a4b. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/GBWWP1602388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa2d3b8a22eb372bf64ffd6e559d647c0c43bf2d0d0d69764b8b5bae0db6c17. 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/GBWWP1703099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171fcd5bf752b7b4a452776f32432d47278ceea0c2c89a860ffc8b80aa62117a. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/GBWWP1703100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb31b5e9319f7f679456b4167a010afd6b936c4dafd4d25664ac8a35a7399e98. 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/QZES81907839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a515c062b44b4b9cff1380cd283c82c9a48bfc73da1729e66972d29b4d5f674. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/USUG11903750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a81df0c6f6ff14aec3661392e867d648fb2fdec095c0c157f33ad692aec30af. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USUG11903741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26e96a14bff7835d072dc5f168a10917fb9660302d6a4f52c03fceca52dfdc3. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USUG11903746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40768574c8f32a8298704bcc919f4e91485996c3fd222da91fec46be4f94d4f. 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/USUG11903747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a94885649b130214d88437d6cc19a66c6a2185244cff55f43378005f537219. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/USUM71900902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40768574c8f32a8298704bcc919f4e91485996c3fd222da91fec46be4f94d4f. 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/USUG11903747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7b12b536fd5b1e19d34d55bf65f0b86042b0727ddf98ca9847d8e0e3e50351. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZFZ72104617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf75a619272bfbe3dab03464c4b4edcddec6bfa3b5ddbd3c5bfc9231996b623. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QM24S2306653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cc08a93193324396994bbb8decabed53bec0e3c2af56c0bb282f19406a299e. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USLD91782160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab660de38e740d38b223624054c0fdfe7def368f1d8ff3bed4aea63e5e707d8. 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/USRC11702829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa25aa16d2c16aa4e518b5b0f3a4b997e3fc73cf60145e7cdbd4138cc97b49e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUYG1419403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69c5248cf07c6506419b99e10dd8d8c10b97c5cd61e4e47b4901874601e27b2. 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/USUM72302897.
wunna dem (with QUIN) - pt.1 Endel Sleep Soundscape
Since I Have A Lover (Endel Sleep Soundscape)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d318686e5a2c319a9816b3d9fffd405af1758b4484d69de842fdfac895ce8c. 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/USUM72309755.
wunna dem (with QUIN) - pt.2 Endel Sleep Soundscape
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d00201e0b3ee5572ffa3a65a73f41f8db846fd2df1f3dc24ad0c36d2ad1eb3. 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/USUM72309756.
wunna dem (with QUIN) - pt.3 Endel Sleep Soundscape
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbf977284906f112c7d722b4e530b4db02b2996e76c88bb67af8b0c1d7cb4d4. 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/USUM72309757.
wunna dem (with QUIN) - pt.4 Endel Sleep Soundscape
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabfc1cc3f06928541568b8c6ec0efcd0ae60b392800e41981021fe9af70c2c8. 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/USUM72309759.
wunna dem (with QUIN) - pt.5 Endel Sleep Soundscape
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6810fb30488ec6470dc66abe97ca7b190d0d0a3cf24fc4a23aa1aae194f584a. 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/USUM72309758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd28f80a1387f83832ee8da565859cde33a35700e5668428a05048ff0097b04. 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/CAN112301687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7ea72712ec796e53d651ff4bbb13b523f364bac5377de76986f7bc6fa5777e. 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/USRC12103456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056cf1bae6f24cede1f6b3a1036d0d21cd0d3b247f77c38522a8b7873a0ba823. 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/QZCE61884682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a413157f7fead67e616ac32afdd896af7222d2a208bcfdb03ab35e54db574ac. 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/USRC11900967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77537facd6e678a4b034ea0c41d5b7d7fd0c19d17995fdf35b28ffbd27e98a0. 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/USRC11502878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77537facd6e678a4b034ea0c41d5b7d7fd0c19d17995fdf35b28ffbd27e98a0. 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/USRC11502878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83a3a8ee656beee44055931f0b337a8baf5201135d3085a6e125904321d3f24. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/US6680915875.