Otto is a masculine German given name and a surname. It originates as an Old High German short form (variants Audo, Odo, Udo) of Germanic names beginning in aud-, an element meaning "wealth, prosperit
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 0xd6bab847fd51891b4af0f09be7373f902f1eff9c16138d5fd1495097e48b8565. 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/643a27f8-7d6a-45ba-b9b6-c94788d0831d.json and https://artists.proofprofile.net/proofs/artist/643a27f8-7d6a-45ba-b9b6-c94788d0831d.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 0xc28bf73ad0faf1b038842216df5dae7c8316f25acbeb7719fc212075a536e32f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCJPE2510809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a09bac643bd4ca5444ed3e134f2ef52c1dce7958eb84653aedfaf5b9e4df4e4. 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/TCJPD2592807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabddc9ff027a01a4c8617f8f33ccd9dcbbc09c76da78d2dd8a2bdf66cd5582ef. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCJPD2592996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc907dc9f0f31362b18e5f1ad7eb51ef15e8fe0f25ad40849a73e450717b3e086. 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/TCJPD2592998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7717e7a0ff6a1f37df3aa9432ed0644049785b93a9e00d46d55ed5343395332a. 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/TCJPD2593000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ada28dd752af820a73dcb5ac491740db9faffc7b33fb2201c5d3752b377b31. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/TCJPD2593007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04670113c4ae0d91c22e0d590870160c3a09ef917828e62459f3e130de729eab. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPD2593010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4594863df7a4c60fac280917b65f56ba419a473afbc358e9c5274700ad7c45. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCJPD2593025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776fd4e1f5b856f59be83f922688616c3690e87efc202c85dfdbd8829d3e34b3. 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/TCJPE2573380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddeff2943620fdf823eb80322dca836ce551eadee48e3f3a027c92d946f497e. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/TCJPF2530975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7551fdf275841c0f611b8b4d5c66e288744bbfa835be30d8e679e165a7158b01. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/TCJPF2530982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca57c13161e0131cb83d079939e15a7b92fc78543d4d74c34843369e44296dfe. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/TCJPF2530997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107b4cbd30df43c60759664da6f6215f036a72e5c19ab1cb20a29c638c381fa6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCJPF2530999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9012aa30025769321509963abf88c8f358931e447e8e9de446cb51984e6d46d1. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/TCJPF2531001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e51bc8a7232cbf3676caad8742463aa68535fffcca5e6f404adb32fcd0d6a6. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCJPF2531002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad85896a7e6fb4566d58321f2455fe0e774dfa1b4eaf637578f8516133217592. 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/TCJPF2531004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b58d43221cf09b3f60e8fb8a88215bf4d37fae8058545fdb896133754c8fb4. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/TCJPF2531016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442aa122d9d50812eb77e2b9a0ffd3551655e38534389df1e4acd32f1e737568. 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/TCJPF2530984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674205162405778af2f55191deec59aab1bd5c87bcc22a6c0f1d51e7d9a65938. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/TCJPF2530991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107b4cbd30df43c60759664da6f6215f036a72e5c19ab1cb20a29c638c381fa6. 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/TCJPF2530999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9012aa30025769321509963abf88c8f358931e447e8e9de446cb51984e6d46d1. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/TCJPF2531001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80a000bb2acfff01ec98d34fe0179ce663baa5e1f860986808d2a21cee396f9. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/JPW462567689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077003002919399f51a80af4e1ec07eee7c364c78b2b2d0819902bb619316409. 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/AEA3A2147390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b890fe93f244a8207a3887b5e53d59003013f7ec529229b8ab713e1e25db29d. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/TCJPE2572859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec34347a3600b4435e4b343a3e6317f33a7a5080aeebd8d07d9c3ec06d91070. 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/AEA3A2197335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554a818bae950c0aa8c42f1b6155184cbb37271a3c10dc70be4a1d57ad9da770. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/JPW462576245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccee05102cf9e29a59e94fe9a759ebbba14e08ec6451c6968a3db0d8b0dc5825. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/JPW462576514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd3e3c7a3702cf2c688a11bc84099194a703c4f2b8db6c570c9cc5c81117838. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/AEA3A2597266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564781ccd6b9ac43bb8a48d2b37b0b8f218569b2c4e069d44c3163a098bbd997. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/AEA3A2130455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80a000bb2acfff01ec98d34fe0179ce663baa5e1f860986808d2a21cee396f9. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/JPW462567689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89ba430b9dcfae83bf1bc620147968f6de07458bde96c5e8404bacfc5146d95. 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/AEA3A2142815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a34476acd0da7b0feb5144da7b41679ab2ecd1c5fa3a000700fc63e3542b007. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/GXBAV2004095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebfa992b1096ffbe916c92a9838c15d8c6ace95eb8fd74fc48c445f8149ca90. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZNJX2383468.