Valtos can refer to: Bhaltos, Lewis or Valtos, the largest village in Uig, Lewis in the Outer Hebrides Valtos Province in Aetolia-Acarnania in western Greece Valtos, Skye, a village on the Isle of
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 0x9a768e9aacf4625e4afe6cb488d0037f5ecaede62c8860ef60baebcc55ba47c6. 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/2d65edc0-a063-4344-81a2-fc71b6c56bea.json and https://artists.proofprofile.net/proofs/artist/2d65edc0-a063-4344-81a2-fc71b6c56bea.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 0xf8c54f567b09c2aff4f93a8f1a73032bcb152b085926ed68c0fc65f057d3c69e. 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/QZFZ32290155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a5dd15843a723abae5cb98601411acc96091ed4ac7ecccb92d4fce7bbb9be4. 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/QZES82295261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93573dac4c53b5b01f2ea95b8b1fb54c0d031f7cb32f21d268f5790a307c55f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZHNC2244795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42390fe5f0dbd54e135c0b86632940803d9ce11ec2ee048ff3020bfc163c2ed. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZHNC2244801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d151540f7fc7f90d0af84568d9e08366a698af5d6081951fefd5da6e1d14a2b. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZHNC2244802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063cd7296bebb9d827ab037369693b7fc8ade986472cf285f63a1b5675e6bd17. 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/QZHNC2244803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b907ec4d82278ff5a27a26570267dd2bd63dff8c3e02bd4c7e801fb7886183. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZHNC2244793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd7a23c1d2930c37688e85bf095390424cafc618a58f30ebe984c1c8311d289. 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/QZHNC2244794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93573dac4c53b5b01f2ea95b8b1fb54c0d031f7cb32f21d268f5790a307c55f. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZHNC2244795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6aa9c3a5759728cae4fd13c834fa0d233e27b38c700e789b1a02881caa83bd. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZHNC2244797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cbec56bfe7be3e5a350d56af547716c359c666dcb009540da0a17dcbcccb4e. 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/QZHNC2244798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b549a6523024369ffcc61424131872233971154497fe9e4ae7ea3c92724414. 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/QZHNC2244799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1ae747b43611750f2e5c51a56fd98181f1e79ec26e5729278d02725c5ff007. 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/QZHNC2244800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42390fe5f0dbd54e135c0b86632940803d9ce11ec2ee048ff3020bfc163c2ed. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZHNC2244801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063cd7296bebb9d827ab037369693b7fc8ade986472cf285f63a1b5675e6bd17. 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/QZHNC2244803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd56743e2deb0557e74fe19479148cd25382fb5219f96442efbb1ce60851b16b. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QZNWT2209435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81bb9dfadc182b5c95cd7c7955b10f97f80421ecf06a972ced46d688faaa5ec8. 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/QZFYZ2390867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5863d7f97f3bc10e1014812f02a7ffb8b9603532e7aad90666ff4797d1b0b9ba. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/GBMJG2307192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde0079f815779c81751a2aeda790d9a469a53f0a267190e29dfe5187bbc1883. 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/GBMJG2310970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cb5fa113247d819efaa2bee969a0db88558aa5f53de30e07b1e09e5d34f1cc. 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/GBMJG2315527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dcd4b825f457aa887e42348d248d06a946ca78d4d30f792ec5d3e4ef3352e9. 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/GBMJG2321471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeca3752f9e52386fcfc2154898fca58b1a736d1502cc90b87567ae7e4a86b04. 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/GBMJG2330355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b449245e162f77bb7e816125381d1e991c1d2669fd1b7d462a7c6fa5d1fd6f. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/GXC2D2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7711972c4cce0703a1114db543991db0177a7fec7a8bc935763de412273dce8e. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/GXC2D2500008.