Silas or Silvanus (; Greek: Σίλας/Σιλουανός; fl. 1st century AD) was a leading member of the Early Christian community, who according to the New Testament accompanied Paul the Apostle on his second mi
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 0xc9ebff5e73e6e11ab03c792895efd29e56dce1e6a378e534323d3852517cd75b. 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/7c71e8c0-13d1-41dd-90f9-1c3517b77d42.json and https://artists.proofprofile.net/proofs/artist/7c71e8c0-13d1-41dd-90f9-1c3517b77d42.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 0x7728a7b8fab5b5d6c3f9e070f8561b45a94ab8602b4e036d2e52f8c987be18ed. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZNWX2429223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20bdb23f7a5fb98be4cbcd5f895d2f6525c9f578687027303b81c0fa9b45e91c. 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/QZ9JZ1726700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03de1b41ae8512e0ae8a4c0bd1104cbcdfb3cd1caca3e2f59b83254152bab9af. 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/TCAEJ1939697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54f1a065b946fbdacdabfbc9e42d8bbb059f16e8477b5e6d800dcd0ce9a87a8. 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/TCAEH1949166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7909c17d8591e08d062a655c8f961f0f7ed9df76ad6f65693c58a0465c84050. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/TCAEJ1939739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5331d0a5d98fe874fc0dfb5a0d0e8041ed39800cdcc785df1267b0b0efd8cc6. 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/TCAEJ1939783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2f09d9b1b252ced5cc625c63e5f05a715e4ec8d7e9449712a8241d5a825032. 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/TCAEJ1939799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8392ac43003047b93f8dfa73455efadb33abab72c307eb2d27df462ab12b46. 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/TCAEJ1939801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1289838e0ab90e4b41ffa630bc5995aac318f4eab69fbc60a548afc9ae8b6bc. 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/TCAEJ1939806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbb26bf26aa8d82afb32d1def0a2dbbcb23ce491bb309fc172c8b01a529569a. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/TCAEJ1939809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544b80b8300b1e30159ef7a7f420c7b56410a7c26bc00a4cc0c4652f9e18d164. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QZFZ42504013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886a32d6759183586b9fdf45ee8287737dd351660b4e78b25168003022680899. 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/QZFZ32597098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7396127955b5986b19ad6bff1f54cb3be8c12f00cf594a1ef668d48b7e6401c8. 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/QZFZ42504020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d9b989a393ffa6242bdd12bb0e5d15fe182b462494a8fecb46a1645468e350. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZFZ32598634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe934f09e6e201f857d394c29bab4e5ae9bf3c24b1416cbd8d108295a618bc1e8. 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/QZFZ32598635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6ee6c518969a925e325903b02f03ef435cab692619e310e052981c2fbd8106. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZHN72522972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbc534c30d9fff229a314d197a1053b4932d98b5b03b9362cb18cee0e784eb1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN72524229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26e560f2edc8a73911f876f595bc41b559f05cd0f032e003584017292b4b2ad. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZK6N2523721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1da671e318a423fd06ff2d5a9555f9303a2ef54c6dbcee7868a35b857e65f94. 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/QZK6F2581405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24342cfe40b1071f9af764477861432c72d127a35aea7f7fd98d0e3ecb088a23. 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/QZK6F2583658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c47d348f79e11b702779b8ff99aebf3f2571afd55728403a70848cbe2dc0a6. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QZK6F2583660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e10e17156b396c6f3bcf082066d8624221589d31810c2c66ee58e2e0d2e6117. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZK6F2583716.