Silvanus or Sylvanus may refer to: Silvanus (name), a given name, including a list of people, biblical figures and fictional characters with the name Silvanus (mythology), a Roman tutelary deity or
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 0xb8f34c9ce1146fdd933b8fbc4925e7496a16497cffa1baf07d5fda67c43c4edf. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6e6bd07-87d6-4986-90b7-e176752ce686.json and https://artists.proofprofile.net/proofs/artist/c6e6bd07-87d6-4986-90b7-e176752ce686.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 0xc7c89a5e3163dc2e41e370f4175eff6b8302661b997b90edf54e9653e4017faf. 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/QZMHK2424543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8bd990d667103a758d4006e9cf7f4d1dc90cf38df55e75b51fc5f5297f87d2. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/UK6822404744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe585c6791958040f56e0a531b7b0a9d34617bb29e6db4ae3690222e0b40243. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/UK6822404745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b40d6af367252a38052205654b2b5747cda60b64189345b303711ccf5ae89a. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/ARC572404570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ebd97ffb82eeff39f73199d5c1b2a16ab565aaf61a88e00731e582c8579476. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/CAQOI2411781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20c47a9efcfa0f43b892d336ee1dc1bbad8a231b9aa408c073852585462cab4. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/CAQOI2413290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749741c2b6ba9c23e1920b29fd33808dbc44ef7b8d8bdeb3bf33157b1d3330b9. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/SE57V2405643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cc82e3ebd6daac0d1d11da0bf32be4f52ea6805781738bc390493a3e1f7f04. 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/SE57V2405644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef5ad1964218d97175707e154676996468718ae5810896bfed936ae9f014aa2. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/MXA3V2409714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c6487a6cd7f50e0ffcba65cf6552f699fe42aaa45d2cf3c0c420f02178cb25. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/MXA3V2409715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf7641315e3d7935533b7c031b81477fdba50cf8aab57c5a1c8f02180957846. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/MXA3V2409862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d2293791c81cbd74bedcce2843332afa697f6b32ed2ff6c87fb71beaebe552. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/MXA3V2409863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56955318fa833749e5669211863420238bde77520dd449fa9d49b2960e0a356d. 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/MXA3V2409994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9260103d2f1aa5c0c1d37935c617d8e9eaad8aed2c572d725c39409a2db5410. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/MXA3V2409995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f22e6a7c5751ecab8e773ac61d47e7eff89bcc588fcb1fff100afed875c8555. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/BGA472516078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cc5b5458fa1d80097b93a5534c49ff2336ad45aed39141545e719392d70e94. 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/BGA472516079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa631ab921fe5b6b1e53d6a26ec1f16f8f83d9e287da585acaaccf3151c49e974. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/BGA472518397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc8aa1775ffa3dc6cbf4aa3cc9866bef7b6e97d444c618cc934cd0ec4ed1a64. 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/BGA472520595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0876336dc28504f67f66286f33d5d9532f5faa36d9fc52f574566552d3973483. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/BGA472520849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1065732cdb0944914cfd1420955325e0fa00a69378c832ddb1dc54a3babea7. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/UK6822512870.