Folsom may refer to: People Folsom (surname) Places in the United States Folsom, Perry County, Alabama, an unincorporated community Folsom, Randolph County, Alabama, an unincorporated communit
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 0x61a6d906d83a5d6c1adf093458339f3196b1b088146d7e204c5f2df3b4738fe1. Chain 2 (Bitcoin): anchored in block 953709 (2026-06-14T23:31:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ccb713f-981f-4a7d-a92e-5afa463a93ea.json and https://artists.proofprofile.net/proofs/artist/7ccb713f-981f-4a7d-a92e-5afa463a93ea.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 0x4d41f0d564d7f3ff2191aee0c2950df82492fb7e3a366e6ad081de6a36469d5c. 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/USL4Q1907828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971dc58e6e84f0dc9ec8df0c495e2357c31b233bc8e5b1bcfdbce0ffc22aed7d. 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/USL4Q1907829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51370919989de9d40b856454bc9d8c005363fcd6e65d606a603081857db200c2. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USL4Q1907830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4747fae58061e02d8b57775c0802ce72f2d42d15ee36f0594984f39728cd82d3. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/USL4Q1907831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c7fccb0e689380359944722e66861e07a2fe08e1ca863863c0d740a54237bf. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USL4Q1907832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6834eebecca584254dedeedf54c4524b20de077d99f27331cea31d5e935f8b6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USL4Q1907833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7310c7e0bfa1fc13259e7cef0a16bb80145560c6ee0828c8bf6f8bc41047fe1. 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/USL4Q1907834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ad25676b5e37c0da231cfbb9a5dd34bfe4bf2860b0249a56709dd64d9557a9. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USL4Q1907835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a0b28e46bdc28327ae73e9d0c80ba6497fdecb62f7f8bd07c02c63d46e9dbc. 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/USL4Q1907836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e87732052b037c235f41db8684f0e1dede2460c0bbb954c0335582c39da586. 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/USL4Q1907837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553c6d42fc7c3c3d92a4c85aabea3798bb3760e2326282ccf065af576cb96a4d. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USTC90939729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94787cd3cb35d788e14ece8224768461d33746e9dc24127810ec85be09d1506e. 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/USTC90939772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb08536815060c705a16b5e50ad16e123d0df759eadaf78ffcb47a4dfac5b4e1. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USTC90939773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3e26376c1ce457ce6ff9f07aea46b7b704e69e2955d24cf1edac7fa09480da. 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/USTC90939774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b0098b888b309432a142f366d9acf266e1ed58d2ab4ed36b3203ffa78cc679. 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/USTC90939778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9527a1e88eae473da04b6f255b72b9f06aa4ce7303f3a9b871d21b89576eb8. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USTC90939779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3f005d2d7fcff0bcf556dfb7c3e92d1d3d6a5e19675e348325ddbf6c023a04. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USTC90939780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95ef1ddf9868711ff5ac44b33131ff984eb5cb2de1e851de2ac65b7bccca835. 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/USTC90939782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148d560329473f557e72019894917bfa569f96360b61f223e9081e4d2bdc9b90. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USTC90939784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6190e7c707106fc2cdb3d988c45624a223da998045ed11130dd08a12fe7f4ed2. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/DEBL60903327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f1312ac36fe7993ba80f13e112591ac9be04ade3cea1ed30f145053de42957. 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/DEBL60903328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026b9962a7ec14260e7b9fb20226ce93cfcdd06e3ecc858174881d863348be44. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/DEBL60903329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95458100467d9ab892c7839109435de46fc8567cad87bdcb4885c5e50bf49a7. 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/DEBL60903330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c87b158e00c6044cfcf29366ba52033a0d430107398147fd4add5aa7721b33. 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/DEBL60903331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a72d9488da8bcf6cbd5f16ef124df4f5d5cc3c6c3a96682734dd61ab2bd2a1. 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/DEBL60903332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5f4590b048b0ff187d2f58468f5cd80b0b41833934fcb4657d847fad7103c1. 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/USCBM0500072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce5c2b4d92c65f058c398a290314f18ab2f3794ded2876a9b8b2c131851f801. 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/USCBM0500073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9826202c2f27fbdbbf8608a640f710e5dbf2ad6b202d510e7789d0d5acb80c. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/USCBM0500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ec2d8e594e4f136bc9833a058feb640b1b65961009f803eb883ed992ab7612. 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/USCBM0500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc659f4a9794a882decd6cbab4920d179d08942c4b91be486394b727c08e2742d. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/USCBM0500076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6700f6867f462beaac72dd3c86e0b10de44934ad54beeb0e02c7f819fd2df5e9. 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/USCBM0500077.