Laan may refer to: 7de Laan, South African Afrikaans soap opera. Van der Laan, Dutch toponymic surname. Ana Laan (born 1967), Spanish singer. Marta Laan (born 1985), Estonian actress. Laan (film
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 0x62dc365a05b05dfb9b780f8b7b078af42ff3dc7005f2be5597ff058d35edc7d2. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e391ddb6-a329-4407-82eb-85dfbc842430.json and https://artists.proofprofile.net/proofs/artist/e391ddb6-a329-4407-82eb-85dfbc842430.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
NO Puedo CON MI Vida, Pero SI CON 2 Chicxs
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 0x2a2abdd8b3f84cbd103834f705d36245929ac4dc5c6dadc24ba0901cb0748aa0. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZHN82273192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafa68de34231b6f0f8f1a6fdeddc8a96d2686855591823d673c04ada0929dcd. 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/QZHN82273193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b87e4ef66d076c24c5c4c3a2a737e3595f887c2db4297b12ffe0ea172bb34d4. 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/QZHN82273194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6e276a9c9bc6ac643eb93372377894a99f3fa1337eb13f6a16dcf38de188da. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZHN82273195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c94c2a7823432a40df9a50c4cb9a6fa7d572d0c80e1193f160350106a06baab. 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/QZHN82273196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453bb586bbf3c96c18d35fa8438265e276ca40ba90ebb4841b5e70ae46a93e65. 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/QZHN82273197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941c6744220f2c39634cfbaa327aec226c7e961ee6c271260b6ae47f0496292f. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/SE6XY2252506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cf9bc808b1517e9b318279cbdf1732ed1d054cbee59c1051d39684534059f3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZK6L2353075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6493efba67e0351db588bbb57741a4cf4cbbff9b1f052de1d191c625f565ab. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QZK6L2353077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79ce7126c553b2fef9bbcef64494a85e196937dea87976b6acdca42e9c8c80d. 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/QZK6L2353078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc874aec1196138758bac9b8e19a2a8eaaa3a74a8a8df38d5abd673b4fea8fa. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/QT3EX2412229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d8dbf5f3d970d0aba291bce00d3e05ad9ebbc5a043c0b50c7e58e2b36f3882. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QT3EX2412230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a290151d7e8b99c47149b852b3aee79a17bea4a4a47a5b08df9cab3e7b51a5. 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/QZHN62564663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3092880d0bf1ce9c744161d9025d693b0df7e0dbf4c8deb5b097d5260a5b14. 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/QZK6M2583250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d5558bb3f0467d57cb500967c3568e14504333e63f3b7d59eb917720dab84a. 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/QZNWZ2501692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7b905194db045e3661397606b4ca96bff12780680e4d9c5ef76f74858a8894. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QZNWX2517594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1bc750eb028b513b8473d62e2903877d567b521bea980966958a0bce5ceab0a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTB42571801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb5399c7dc9fbd818833caf3d29a4887a31b35e54f49454f6b568aeb21f832c. 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/ES75E2306774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b7539c7cee0cceb953428cbd17a3cb6336a03f0922965cd1564042bcfc66af. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZ5AB2206543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8064d18332852b93a4aa71352c50b55467d8d5adf5751faa8da3eb684984db0c. 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/QZNJX2100762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2232860284bfaa1bc095a9cacd4ae68165b62611439e9c8013ba30a03bd1037b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZNJX2252244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f40acb2702ddf6b791e0584fc33e576ebb4832b89a8fc4462500e8900f8a5c. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZPLS2439078.