Lock(s) or locked may refer to: Common meanings Lock, a mechanical fastening device Lock of hair, a piece of hair Lock (water navigation), a device for vessels to transit between different levels 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 0xad4b562367306a69e4f47300a07ecfc60978e436b4c53cfe284c61f0fe794308. 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/05b73b13-bb4e-4da9-a91c-ae8fd0fe72b4.json and https://artists.proofprofile.net/proofs/artist/05b73b13-bb4e-4da9-a91c-ae8fd0fe72b4.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 0xfac3ad161a596686f9e9ae28614ae318b4017705b3a64ffc9db8f6507d8b58fd. 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/USANG2408585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0dc81ffba8b9766c5eac9819e609326f26985f91669bf2b0a4c179425ed26c. 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/USANG2493410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed88edb17c5d1847591df1332514295040ba372f06ca4c13e38f54358b1b1165. 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/US3DF2561193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b8d273adc49f7c86d5e1cfc5962b3861f7dbc04286eb3f2a74b3126766b989. 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/UKZGC2402081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e20060eaa0675b8b7f5e979ce0c3f8c5a0b4c3c9632c1e6be6c758ae642caf. 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/USANG2408632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b39a06d00bbe8017aec0ede26f902d1c2bdbc4e14bafdde9b026275f1cc83f5. 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/UKZGC2404969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470268962df0a90b50a36662cb20861c4d2662cac447d2743ac42636713d3f3e. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:25:53Z), 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/UKZGC2406174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2364c35703548a6f9c73a9d45af39a3de6fcc30141214a5e361f1deabd749554. 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/UKZGC2408319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbedbdb54b6c4646cf297dd43b5c1d003662ac749e8b1a8ab816efc6307aaa5. 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/UKZGC2408324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa465c0e3a64d7fc30fd1aa7bed2a4f546cf93843f3fc8871c6840749ebdd0d. 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/USANG2468733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f34c8961214fc7173dd31ef3b36001f7dd16b332fb3bea5c2aa13a7161fb7af. 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/USANG2452539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a80494dd34ac168c27638b1530ac06bf209a3ccf5fe7ccd5b3d28d73782e3c3. 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/US3DF2519690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd266bedb13bab0a5e2500829f939a2736f62cc1db66d0a2a47e0b7fccc91aba3. 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/DGA0T2454165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a15d8a47bfe6bb3973e88659b19f88e6929347eaae9d699488681ab734e8f83. 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/USANG2489449.
pov: you went to japan to see the cherry blossoms.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d15e1f1e243d9dfdf3ba163ff5a6623c797f92f8ca51a3c0f434e16edc5761. 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/UKZGC2501032.