Ries is the German word for a unit of paper ream, derived from the Arabic word rizma. The term can refer to: Geography Nördlinger Ries, a large circular depression in western Bavaria, Germany. R
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 0x2a4e52f25226f6a94270a48ce359dce54ada0fca3915c59ca7ba9174b88a4f1d. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98dc4791-817f-47c7-bba6-786b547135eb.json and https://artists.proofprofile.net/proofs/artist/98dc4791-817f-47c7-bba6-786b547135eb.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 0x5f220d3cff7b17bc34ff6dff4fca7df32fd21de00f629dcb4f99c209e8a8c1bf. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/QZWFN2329757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673183b3e12cff9d3e1289adafedfcf961e15089d2bd5a24bf66a9fd1368f8d1. 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/QZHNA2408789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792e60cdbacba4b47515b01dbfaf8a969afbb71aa52a3246b59c950a57980524. 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/QZK6N2493003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96b2bf902e491c7b277415124b8a31efd18cb4e13a63d2a7903154b3ad4cc7c. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZMER2456231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b42e46461441ef851f566df8c06b4593a5bc1e4f730e333281903199c1823fd. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZNWS2432732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c8d6c865f56b20711ecd600ca9d9b1889b151d269b0224fafe83614ea10502. 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/QZMER2450109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9cf385a10f9beea3cc5c38152f1b1ff13798ed1ed80186902b34927bce597b. 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/QZMER2450581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e9c199c15461825f1d3ce1498f0881e539db1860e799628a91c81a0a40c3b1. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZNWS2432736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08808223abe9a5f892fcbbac3a5947cc4103ed827fd6439f1059cf8ab656c7ea. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZWFK2469730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f51658a09a433f3dd22b38bb86b6ed474a494c239c0a3a39865618e206049b. 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/QZMEM2456382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd84067e2d0a792fddf51d4dbb179d30000fdedc4a99ac9a3d791a4fb1965ec. 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/QZWFK2467082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25576ada3c6b184fdf06fd9a264913db62469df90db2a690cd0329c4beb30f35. 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/QZWFK2467087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35423ffaeccbf5a04aa481e79692e1f6fb1084700f1b463699bd89c8fcdfdf50. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/NL5MF2102650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35423ffaeccbf5a04aa481e79692e1f6fb1084700f1b463699bd89c8fcdfdf50. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/NL5MF2102650.