The Sahara (, ) is a desert spanning North Africa. With an area of , it is the largest hot desert in the world and the third-largest desert overall, smaller only than the deserts of Antarctica and the
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949618933ee848273a754997d6d6086ab57639d259dd3919dea7889a0944f7dc. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9944c292-2ccf-47d7-b128-8a45d902cf35.json and https://artists.proofprofile.net/proofs/artist/9944c292-2ccf-47d7-b128-8a45d902cf35.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1237c21d3883412bc29fb0d9b7adc3794729d8b8f9f07669d19ef098d7ac1a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBEKR1200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae10d46df5d82015162793689a9520640141340e2781f71547637274b751548. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBEKR1200199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0778690321517d24f7669b86ca69d64e014dd3ab66af26a268fb52d6db31e502. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBEKR1200068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d55d7377660ea2081d51ca89526845e41a09c61d08e297c71488ccf62c38de. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBEKR1200245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002a1120c2e7c5b4ea26922b30e9ca13abbd30bebb05a20465532d1922d4f5a2. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBYHT0800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a3e45fa440e32e2e7c90791f50037364990747ea53c4c7e2a2291530e9a108. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:19:07Z), 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/UKFY91600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e80d01af40bed44c7d402b27b8cf768d7c780f8d2d055665731327a117787ad. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/IDA182132643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e771fdb222dddc79bd4bf904e91a4828f28a43174abec14dfe010ff2d885d4. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:30:45Z), 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/IDA182232878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a038e62ac4e21734b26897acf23816031f68cc09b0912bcb0a892f3b0ec90f. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:33:28Z), 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/IDA182132631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38879e57beb4ba471155438d5100b288429b0080aad9cfb4c68f67576d3307f4. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/IDA181100295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a97296859869df18d4c4b441ff1affed07ffe1e03ec7c96c1a503d262d97e8. 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/IDA182132632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ec526dce32acaadf3afe37b7effb0f13f7ea80035031d9807e68cd0106f7e2. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/IDA181101432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f69902d81714b89f153a1341a2687c14f8028c8251642e4c66cec1c6be37cd1. 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/IDA182132626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81bb13a55013ab19f9a955b7f715d9c6474090de4d4f34d56e6e4debe4be0ab0. 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/IDA181402037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe60792a56b13e7424047875d3b9dce5a21a2c78dfdd805e7aeed7e736745a43. 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/IDA182132646.
Harukaze mitaina koi desita~Memories of love like a spring breeze