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 0xff21bc67a7af4d1232c5ee5f9339daf1f60315d55d4a2b2500349c203ac491e9. 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/f3808eaa-8c23-4afc-baa6-ccad77e15270.json and https://artists.proofprofile.net/proofs/artist/f3808eaa-8c23-4afc-baa6-ccad77e15270.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tiempo Sin Trabajar Llano Con las Arpas De: Jesús Tenepe, Aléxis Ojeda, Félix Pantoja y Yofre Brito
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 0x0afd9442adff029bc5a6376580ea60d186ae556c0898493dc5609e366080c67f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNJX2166754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca6bb3e4c196025194ecff61a4646a3a7b63576d0eee4176fd6d33cf6dd3d61. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZNJX2166756.
Yo Quiero Ser Jardinero Pasajes y Contrapunteos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd936a6fbe31dd5bea9b50ea83f87dea01619bbaf82f627e3706b2d4aff8fce21. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:13:35Z), 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/QZNJW2104184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5d793dfc63f3cb4d09cb98662d57a4ad4032ad2ab0fd5cbd9c9457d12a28e0. 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/QZNJW2104185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cfcbd01d429e98e11f72f356c4552720816c942fb287dd60dde37030752c18. 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/QZNJW2104186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b649b0f66f5ee66d819c60e49e19cc28231aebee72a4ba1fac0aa54a45cf721. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/COA6W2001399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284c1dd9b9f0ea35bd72db299618b0cfc91911270cdc61678b0406f4b0187b29. 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/COA6W2001401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352d588c405fbe00e989e185443f3d46441bccda9a7d0cbd7d9510416986f421. 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/COA6W2001403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d6d8c43315c4e87393afd8bb3cd9a5d0224b5948a93ea62e9bfd28f6027e9e. 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/COA6W2001404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42a107f4e8818c5761a150bf9b15ea3542da19dd60061e8373f48d26a525c0c. 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/COA6W2001405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddd528411e8d63585f57c203352bbf3d05eee8fa7f49fc9ac1f451c48d7ac1e. 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/COA6W2001406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3f36a60d8d474f77fc6d444481fe9bddeb59cf93c397aa6454edfe5e3e3c24. 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/COA6W2001409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93e7bb30100988fddaf68efe1ae76d8636292cd316b721be787d085e8311e0b. 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/COA6W2001410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e91771b39f4162909b0be9ef53be291d7c246dd7d9751cf93ccec0920783f10. 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/COA6W2001411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b6c2a53dea518b15611ffebd580f2272d9e31c2c91c33ae5b6a6c3244f0b5b. 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/COA6W2000474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677132feec07d05843a0124dec1c4527be3aab031cd8456b18ffc7ee87074541. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/COA6W2000475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69f2204092521038af4fc16a02fd96521f0efc93cbdf36eb581d79b8bcfd41b. 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/COA6W2000464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fa8154a63f33effd837a3c3904a24ba93b52af0537412a2f88453874cc49fe. 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/COA6W2000465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94979ae8d3c54ce016fb36ca0a849d14ff25a4fcdf5ec2335c9bb7660e8c3ae6. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:08:47Z), 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/COA6W2000466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3b408c0943ed4f32a568378ce9fcda646d8650f9995b6ea9e6d2339d992c14. 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/COA6W2000468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad6a64194f4261ccde65241c70944212c50e986bf0a3d633357f79e95d52fb5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:55:42Z), 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/COA6W2000469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea848995ff25b122cd007a7f20bc33d0fb2f401ccfd099f0c56bebe303105a1b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:55:35Z), 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/COA6W2000471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a5f04db5733552854e0c436c7a2b54a95c14c4bb44c4d675e269ad283243f1. 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/COA6W1900202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddb585751f46f1a514755d347ab06a2f06c6ca97419e895933e572e60f2cd2e. 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/COA6W1900205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8615db4ba72cde4ee3577f4e40de62790979401499f3a4a722ec312af856efd2. 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/COA6W1900209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c55d1bd6fdcace18b3bb6b25c680b08bac01b8e57ddf1939d1e8499f7d982c. 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/COA6W1900211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea53b038e1d51da468ecbbf8c0ee918497f025b20386c92193342e9f27c83f8. 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/COA6W1900212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d266a00901b72dc659abbaaf6d6c3a807820ff04af728c8bdda03ecff0e07a. 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/COA6W1900214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a05bc272e83fcfad7b942d817fa84efd2b37e6f784b4c939514f6aa08d92ca3. 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/QZNJZ2409495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bdbcb8dcfe5c65282481eb5b5c23fa50851f3c6b70a5c0879efa5eecc527c3. 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/QZW9K2428384.
Amanecer Llanero Con las Grandes Voces del Folklore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f2d52ee58fd5bf5e0a9341d7ebe7a3bf49c893198193f5dec8ccef2fec3f9f. 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/QMHUY1554773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de3464d70d98bfc67de0bb274ceaee0870c329ac4e80550931ca463be92d214. 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/QMHUY1554777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d18510b9000d5c6838ae16495feb16820e10cc40d9afa2cd18836f605cce4a6. 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/QZ5FN2253308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b81c1995097c1a4be3af7b5c44609e95be98d6dc1e26e01db7cecf535568f9. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:35:48Z), 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/QZ5AB1808033.