Events January January 1 The Reichsbank opens in Berlin. The Bass Brewery Red Triangle becomes the world's first registered trademark symbol, in the United Kingdom. January 27 – The Northampton
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4f9d87e3477b84fff1f6cf253eef5398fca8792bcb9866157cddb8f2969b3f. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e6e568d-29e6-4951-8f98-f1b25f88c0c8.json and https://artists.proofprofile.net/proofs/artist/9e6e568d-29e6-4951-8f98-f1b25f88c0c8.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0bb07330b4bf48db89ffc37ea2e1e935049fcb39582e1af7cfabb9b90c7b906. 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/QMAAK2072365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6987d2ec137737a3f86e1943a9e24a26ae9e821b4766d8ccf5769836bb43bb8c. 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/QMAAK2072366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2597204457c768265790949a2a7dad032e7944cf8bf5a275413fd3715bc2e50. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QMAAK2072367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458c8aa106fbb479232a2b9ab1d15d4c4f8907da0b6c243731a6b8b852a6a84c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QMAAK2072368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648aaec6dc4947181dc6bc11ac74cbbe6a8026874b4bf6cc9479cbaf5d012b13. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:49:56Z), 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/QMAAK2072369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8725439427428664a19dcbba3a496094f9303c5068b90d83dbb5145a74d685db. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/QMAAK2072370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d086ef5e3eee12e621ea43caa559a297f6da231dbd91bbd7f18fb2aa0ea252f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMAAK2072371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf282904a1ae69753ac48fcd1393a8a5007f422c071e27d5431d42fe38a3f84ec. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/USHM82130821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbab431f1055a04d32f012408c88ecc660c1759e16c9d025209e1127c319834f. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:25:39Z), 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/USHM92213854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3a960d24dfa3bdafaa5b28896999890fe6086ef8939c160d262ff7ae478d0f. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USL4R2391156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832852b0c1e776f299e3060295e64242e51752f841fc1147e7d3eeb6b263e454. 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/USX9P2449495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4277c736ddc888909976d03384d8a981cdfcef4186159b2e6831165c859cd9cc. 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/USY242411624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b9b279807b786ba83a6d135e7fbef500e997cb8436099b8a57e5e15b12cb45. 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/USHM22594090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfebf35312623b359cd4c42c87f282ffbc5af266b689a2b8bb89d9299f4680a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USL4Q2555533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3043ea383c263f389fa413777b15efa83ff17248dc2b339558fd0bb2089285d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USL4Q2555534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f9f9c92f70272a48c81ad95017d176fbf9e1079d057c1f68b0223a1a517358. 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/USL4Q2555535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c163ce01bce67ba1ec8fd3538b19ed6b828d6b284feb52cb94c18ba2b29b120. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USL4Q2555536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98283839ba8f20fd2138578db2d03550457d6616c245e199e43335eb225f4002. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/USL4Q2555537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14395d624bfa34f678ff3c2144d262846854dc04c4b3aa55176da8fcbea3de4. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:59:15Z), 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/USL4Q2555538.