Steven R. Smith is an American musician, instrument-builder, and printmaker often associated with the Jewelled Antler collective. Born in Fullerton, California and based in San Francisco and, more rec
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 0x385134873b976ab25dcb79fcd8801b1d22a0e1a10a48590824b6a3572ad6f587. 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/43bf9ab8-b2af-45c1-ba5a-92a6608d1a32.json and https://artists.proofprofile.net/proofs/artist/43bf9ab8-b2af-45c1-ba5a-92a6608d1a32.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 0x30658710bc64d7a302dc8e7bd2620fc4770bf99f6bce107d927060b942e6e92c. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:56:39Z), 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/USA2Z1900514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3970da6d3362213c54d3bc3c294795ea692a9497d8e7019b9b74549c78c874c4. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:25:33Z), 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/TCAFO2103640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2dec4a823b19eec83811ad60e3ae72ed64c64246d6c359c87c9bc7fa5f44c0f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAFO2103642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6a1db6d51614aad58ed1e1a4b570f35374304226417c62f29ee71bf07812d6. 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/TCAFO2103645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e04920e7bfa76ee1c094eb334d496c04ea45a9ecf1e044218eac440cc67397. 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/TCAFO2103648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c99b139a463728ffdb34a5c05905ef5db5b9083e49b95f02329356a34428d72. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:47:14Z), 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/TCAFO2103649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc8c9070d1471c8f2b4c943211e9d83d56c6926e9fb1c083a7bab1591c5af0d. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/GX5MX2162944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d157babacc1a6d0bf0bd0aeec49bc3b3f538565928a70436170cd8398ffe3f. 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/GX5MX2162945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4056f18263e164f9e8a86370f87e1380479a3634c7bdb17770bf06060f9c5fa9. 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/GXBDT2429228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7fed3e1075ee3629402453a39d65b1cd06d3ffcfdfe307b7666ff67ad84384e. 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/GXBDT2409668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4ab1e1583b6c154315b93649f88567e34913171976cf0f7e1aaafd985c7009. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/GXBDT2413404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ada09b20589274ef948cfe7e2e81fdcf07b4f9965d961abffb6e9747d35ca2. 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/GXBDT2496050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc53ae182b92311eeb87a3495195b8008fc349f9283cb45bd18ad666e0711ad. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GXBDT2418240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219769b0bd2019053db7e92123f5643a83efb33c9495228bb4b6323a00cd2000. 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/GXBDT2408638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b65ebc7522f0125a9eeb961da31cfb0c7b79c9099a79d441a306857c3d720b. 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/GXBDT2475627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9c13e1c8b5d5ff27ebe1cce630b3c221757398993bd4956f9e8a51a4b2cd09. 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/GX8LD2517172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e75e5bee2a4d5803fd49dff78aef707b6af004ba7646f581938e59d081c2da. 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/GX8LD2582644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2fa9aae2dd5e95dbd0a739d6758ecfc0461d573baee4ec37dffca69f9caa779. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/GX8LD2511696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5e578fb26c8d182e8037ceb6ac06d813d84cc2497d641a81423adbfb7c8ebb. 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/GX8LD2559704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68558afa77d51ad346146b02ed561aebe2f1800ccae9504f1ef64eb9467910dc. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/GX8LD2552091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c19de986fa2b25b8bf138af8065dfb89767e8e948f915fa1d54a23d879e020. 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/GX8LD2568036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2bc200d99210e259587451a746cf09a2118b36dd52de87776101b1164a4221. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GX5MY2553713.