Walt is a masculine given name, generally a short form of Walter, and occasionally a surname. Notable people with the name include: People Given name Walt Anderson (American football) (born 1952), A
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 0x97b2169dcdf831a2c05a113e146752ab9cd6ad57c18fc67975be822dcad7ab51. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f58c03a-dcb7-4ea4-82f8-a504962eddf0.json and https://artists.proofprofile.net/proofs/artist/9f58c03a-dcb7-4ea4-82f8-a504962eddf0.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 0xc3177758ded4c394036e6380ffb122a789a1048880f0bcfe2b849dbfc2107a0c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZK6G2389601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7553160ea41da449be3f67fb6631eef32ba588ec1d798cdf826bf83a81ef08c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM6N22454833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed15d51f20079aeb9249ce17e6f8076241a2cc96256780c5d397d0aab1a8e96. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZK6N2456090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd79f69f72a97325fb08dcb83ae50f4b1057f36fa615cf7d0526a47eddf00c6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYZ2403004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e283cb49a8e0a1d843bd7c54e6e80ed78241f68e99acfbb2fcd33331690c4e8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZK6G2220896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284348c8da42ff85854ef85be780a48109b0dddd204189ffbc69b5a3c90e4935. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZMER2222799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca3a4813fb638971caba9ea09c49ee24a3e735494eefc8901654475591c9761. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZRP42224497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c6795911aa55eb85fb1e1c5eeb3e33ba46fcfd5900528caa09c768c0fdc7bd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZTAZ2246128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448bbace124d26f68bf41bc05b0e4f18c58a593f84b14d0294433c56f61d2ee7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZMER2222477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840b79623b2d3ae83eedaf490f3cbdfa7b60c1753d3712d345dedb65a55f084e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTB22278484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfc8d3ed01a5a51300fd4d7625c2704d9a68b79b4e6d6980ad88594683c0cd0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZTAZ2244840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b35930f38772c3ccb8272a23f960a5d6867b9d697f8de8c1ef9c42d81d242bc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTB22278505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5c5a8d93bf032291790287beb5a6ffd21486aa9b53401d014f863eb9a3a267. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZTAT2104783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f07e40418bd67330fae1014f61fdef38b4295a1fc76207c846de0166651ab3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNWZ2125707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcd1fb8dce84f63cadd2821505a5458942b14d550ba5a9f2ba59949dab1b005. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZMEQ2108186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78a05c802d5f26c09d5b4d2b0be9f7d13ed21c5c6ff96c464e4e7887f695d96. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZK6K2160427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f36e4dee826701786933d75ed8968a6a7d79f80af99c2df5430e5d76d69285. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZTAT2104531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715909801dc5a12f0b12245481d8e67fc42f6f81e455c397cfe514cfe7fcdaa9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNWR2164792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2864ad0595796aac2a9b056764f75272c031425a899ce967df6ece4514438f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZNWU2124016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed15d51f20079aeb9249ce17e6f8076241a2cc96256780c5d397d0aab1a8e96. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZK6N2456090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ac33c928da111aad664ce8f71aac48c546e4f9a7fb24a22f072ef1aa0ec916. 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/QZK6F2476684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd4b684f555ceffa80036314393b35827f92fdb489c9801bfe68ac8435d4292. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZVEM2347593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd79f69f72a97325fb08dcb83ae50f4b1057f36fa615cf7d0526a47eddf00c6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZFYZ2403004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e0c996d29a8d1dbcd0ec3f59d05537f00ea752c9130ce664a7b465d0e785f4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZTAY2352972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e2e921ea8985d04ff63168aa426051fec079aadc073a784fe91b9edeb8020a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZDA42453424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15300e6e07e80d8b00021462da06c7a30b825e6f496c1553e5ff7ac166e35c1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZK6F2476685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8318b979f321b0317182da8f901ca1329351220433c009f04109dc766e8a5a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZTB72227800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99242936577e79dfaa57d8fb2fd4b0b6f4f4bf948084b970f1ab2570efd07b97. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZMEQ2367169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4b888302c6a92320b325f959be9744fccf23ad96b2c0f556c0b682a9bb80a8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZES72396014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd78c226c7185cd193e317131cd3638244491b5455f74141a5342a6074ad523. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR2X42316534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8876698395231c8d86bbebc38cf1ec75467df9a6295bc775a43a724d232e36eb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZDA72307860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8d327249098c4473b1b18d8348c5ab613ff0c1ceade591ba3f065c60d3aef0. 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/QZHN52321324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efcd664818e10f68a8cc11663913562504c1c13260558ef410c194b70d91af6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNWS2300188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3db133224a2a89e43feba10daf1eb8129e0104920274ba7874db7a76d023d3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZNWR2309519.