SVRD may refer to: Silicon Valley Roller Derby, a defunct American roller derby league Stuttgart Valley Roller Derby, a German women's flat track roller derby league SVRD, the Namma Metro station
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 0x0f6b58cf99ad749210a8ae17746bb2cf19e78eb3ff8eed3fa6915dd23afc8ac9. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1dda1e2d-5f02-4c51-9d1d-8da8e48f2744.json and https://artists.proofprofile.net/proofs/artist/1dda1e2d-5f02-4c51-9d1d-8da8e48f2744.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 0x73cd1f324f63653b49ecb34329e5dc4b616cf4ec99dad667271f4bde7dd188c0. 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/QZFZ22543073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda0b325ac4595f1b510c5aec9d77c8364eb7d26bdc0e3e2671b5b1b69bbd237. 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/QZFZ22543074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb487750b889047a39f55f2ab81b0666852f18cce8d4e111ab9a8e9ca8408b2a8. 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/QZFZ22543075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3621e811de666273f58cb115abedbd8e723db410d62ef1be0808ec37f121a5. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/QZES52537682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93622977826a0cbb7be0913e2d83f5e62131818421f7a122053168bf5c3e5c2. 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/QZES52537683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b47cf116ed04cf2425a5c8b3b8f6d2d9f7b5f10a2967e191ee929f1da9c2c98. 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/QZHN92574938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd364870ec7d81014c64e9a843cb3c9334b44b5d50fa32e61d1123e6ea2555d. 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/QZHN92574939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb962b611e709b1c929a033ae3fb232d518d13ea62cd962b54d56ae1d3d29e8d. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QZHN92574940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb991dd353ff7a1b467759ef60d0432f2c8a9f017078f3814c2318eeb171b8fd1. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZMEM2531817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa30e75f02218199bbf185325215abeff0c6bf1d656f099ed95eb9b3a909bbdb. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZMEM2531818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201350664139db23549c0a9396071910dcd45c1f6d7c1565db5b2bb73ebe3618. 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/QZNWW2597835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c0f15785cc674b96557ee9ac591743aa86faba6f7500250db967db089be2ae. Chain 2 (Bitcoin): anchored in block 958863 (2026-07-20T10:27:46Z), 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/QZNWW2597836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3570655516df8cc3ac4b9ca53aa67a3c2b1ee51e051a69552f7cadca1bac162b. 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/QZNWW2597837.