Launder or Launders may refer to: Launder (surname) Launders (surname) See also Laundering (disambiguation), several types of washing, literally or metaphorically
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 0x5f4ed5d41dc560b682711c001c84f1e5772d645eb35e80a8adc42ce72966a913. 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/110ca867-44fc-485d-9dac-bdfa31f7f5c0.json and https://artists.proofprofile.net/proofs/artist/110ca867-44fc-485d-9dac-bdfa31f7f5c0.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 0xc1530d3263a2c2143bc0f9acae0a4255a078d7976a7cf77b19d5cbe05024fa1c. 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/US2J72209301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8ea97aae5cc9da4a9bd1397e6d17ccfd3bb3ff12e7e32ac664b29f58336148. 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/US2J72209302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c3280ceba79da63bbab8bcf06e58958ee90f5f61ccd9e841afe3e2b1f756fc. 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/US2J72209303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafe2176e1bd4d333f4a612bcab117f5440e72d2539b4c9293389d1764e23cf6. 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/US2J72209304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c4d1beffdf36802365cb0cafd37d3deb71e925781d1d1ac51064c0e1fb1b97. 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/US2J72209305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02930d1078d470f5065c0f20620fc8f8e595e33c971dd001cb88260ba75556e. 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/US2J72209306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9edc1208194b236ac8ee1d73ebeca12c330bad5a8bed14fdeb7729772b3bd69. 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/US2J72209307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ba37a2be98c11c878f6a11eae01e3433cb0ea2bc59b9a9b1fffffc4713f802. 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/US2J72209308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847980e4242df57d8f9044da3abac01950758fbd7543277cf0ccac60d4c67e67. 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/US2J72209309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc85deba60126909de5d9c806961e953190f8d00abe2c21dd0beec740ab4b47. 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/US2J72209310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3d79aaed4326ec2bcf8a3a68048ff0e6403d50eb855f2f46fb19519b9555f0. 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/US2J72209311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28424dee84e0402cfd4ba39d29c0a3fbe9681fec915bafe407a6c4409310e293. 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/US2J72209312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88c49427d496b8af2ae8ce700ebc4ee0745731bf5a4c1d0d2660ef36f312249. 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/US2J72209313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bebb524459e4b634764fb82a67676dc2e513b091a10f8e1c446ecc12782c63. 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/TCAIC2452292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1f8a4674ff4cbb3c86fd0a9361e44df84fe8caa4cf1c6541020771d5748b17. 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/US2J72006401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e052c6ada2a2bb9c794a4c74c8e002ecd4f96bbbf8b888fb67b1b1a532c58ad. 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/QZ92X1701105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43349f3bc9903f60abb03d830e7663a656f5a99766c23dfbce9af1926734d133. 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/QM24S1807076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc64c38de3b2717b543e743ad12ecc3b9784aa10f50619895a54df4b5349b6b. 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/TCADM1864301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1d537ff43e6be27eba0c69f7665b01977d2436df09b12be6dfb645b8caac1f. 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/QM24S1804462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9776dccf662b98d30d487d819710c634bc2d2149368975355f97b2240e200e7f. 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/TCADL1865101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2e941c9517b3cf6e38731402cb49f1b132a82e503864c42911c973a46d35de. 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/QM24S1807077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc64c38de3b2717b543e743ad12ecc3b9784aa10f50619895a54df4b5349b6b. 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/TCADM1864301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1d537ff43e6be27eba0c69f7665b01977d2436df09b12be6dfb645b8caac1f. 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/QM24S1804462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9776dccf662b98d30d487d819710c634bc2d2149368975355f97b2240e200e7f. 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/TCADL1865101.