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 0xba002891fc2e5b65d450cebd51ff432eeee5359d5d68fc17bb12e27285ceee72. 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/0d6171dc-755a-44b5-9c99-eb38225d3721.json and https://artists.proofprofile.net/proofs/artist/0d6171dc-755a-44b5-9c99-eb38225d3721.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 0x37f5e75cbd9acc732f44afd2649ca97d57914ae6f74eae4f889b73db733ad20f. 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/ARC571701894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696652da8077b3569a4642a67d2dc93e7c865765c25f88e905bb79b16e42bf9c. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/ARC571701897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539471051b57467a7ceaef5e2ac87ec3a1909224bdfb34677d1490ca98e3e490. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ARC571701899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7c7409f08cf3afdcd17884f39f2d35bcdca8ca7e30a726b09006b5482ebb60. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ARC571701900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50415f4de6dabf548fdca09585a23a81167348ec6d776190980f5719929c99c3. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/ARC571701901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d33d086d404f22b7afa3b0a1e106e516caba6c04a96aa8e7b4d5517a366048b. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/ARC571701902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926d87d42b9563a1b56c6d3add9195834e6a032e3ff1de54f11edbbf23183643. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/ARC571701903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc531b6037e3d0370dadfd1ed3c15befe8e3735eb3f1c3ada39a41dac329e85ab. 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/ARC571701904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ebed01356d0b3b2290b650fe76009926bd5bcb4ad735d883edccaa63934840. 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/ARC571701905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66e4ed7fcbf0efcd42ba7a33e9d262afba987d0b931d637360dc434e7ad7082. 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/ARC571701907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd9db07db8ab91b5e8fd832ea651cff4364a0ee07f795c580104078e8445c5f. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/ART921300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d349271f1447338a1fd0a5c089454a2db76a832d48089604ce801456b8c0732. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/ART921300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502bb5610d70d5c0e1026c37d1dd401e77e09bdb718c528f662248f39d702357. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/ART921300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a0f94fc1f65eacdbe6de87c804ae8cb74a68d7ab4e20729458fda1623beddc. 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/ART921300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2dcabebf25d5e765adc0d87c3bcb6827d69d223e2e6978d0dcea499d6b70d8. 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/ART921300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5567c8b898f759d5325ca7966a9f4d9e83e01309fabd49a6e3c9d05f97dd4f77. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ART921300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114b8ec89e6a4421ff0bc81ffa8de2ccf38e7582ff0fc2736e07f3dfa1ba723b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ART921300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd737cb1f6ad0ab739d0e5c6b0e4767630bba57f9f5acbd9ca73ebf7e551bf984. 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/ART921300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c6f480523b50aed20dad66ddb73446c26ffabb57dfff81dc6c367cd887efb4. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/ART921300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbab47677081e9e7fe4d73435960151caeed08a908757288286a61e39845d9e5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ART921300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71179271e3334403291723fc394d68ea3388a0a68d5bee8ed23d9877bdd4a2b. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/ARC571800528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba6c990a14fec816ecde9da6a33bef4d1578f049ab56408fde9652aecdead23. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/ARC572001267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0e3570dfb3a9e0b8cf403685f6637ea669bbbf8d9a1bc072e32897f09192df. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ARC572001270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41fc17e57fb22acf73ebc3b81152193e04d2229e11f40fd8247139c5e93b414f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/ARC572001272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1addda1d984c02b34feb5cbd6a23eda57a82d9eb467adb2ba419bd462b936d60. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/ARC572001276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe750aeddd426c45a70c99ea9d566447c80e241abbeb0830b5fba00d3321d331. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ARC572001277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a64cedf3f858b078910e1908afb6382115cbf989bd7364da9b9e60f61c73911. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/ARC572001278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47385480f911731c1320ce021f9994a13031f1c09853c87f4f752ca8b4943344. 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/ARC572001279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7449fd373cc1b7e66e20d06785cbc69a3848be297a7f73704d1bed0729868a20. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ARC572100038.
Chacarera la bienvenida (Edición 15 Aniversario)
Chacarera la bienvenida - Edición 15 Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea2d753098942276f391854c788e7f8da2c578e39e801558045d92693981413. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/ARC572310181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb809621fb2408c4b282fd7f06d2cfe78e7e838e22da5e8f3fd8dcd5c93488fa. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/ARC572310394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f990576d09a632d4786034ee306e6cce8d6b638cb220c4e5f47df378ba3adc. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/ARC572310395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741fb1bef36e255a4646255e03e828ebfce5e3a53e6a309aee81e9dc2c400c16. 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/ARC572310397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3e643014724b7e4cb243be6d73dcd58c141f9cd0123b1a281711f1bf5d0cdc. 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/ARC572310399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1383a530cb820ca55e425dc8d1d7f36da94163cd6c9af1d39bbd670365c368. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USL4R2148901.