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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5639081a7891409a8a9d069c3429d50176946113f44b410e97c638503c2b081c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1e5bb3d-34ce-4486-8e47-21edbcb8dbf3.json and https://artists.proofprofile.net/proofs/artist/e1e5bb3d-34ce-4486-8e47-21edbcb8dbf3.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca08bb5a4be7405ca7ffab84eef1ceb7d311a694e42990ff9dad0bbb3389e248. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T15:55:03Z), 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/ARQYU1301155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eef8132172ec210d1ba54124db5b47ed7087502ab46f2c1394e3a410ebd0ad0. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/ARQYU1301156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9283475956becaed20b0d1762d19004d2082f78a120c23740f3254e9c94ac7ec. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ARQYU1301157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af7c0926df0738661390cf696496a1e35fb1035bba1fedfb857d5258c9ad84e. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:06:04Z), 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/ARQYU1301158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34c4e59ce3ee37218cd1f00d32dcb8f1f21823025f2d17b4bd5b9f58385026f. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ARQYU1301159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b33e80244c6298b2485cf03a46cc5b18394433e5bc2e30643cf4c09dd645a34. 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/ARQYU1301160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb8c732e45696f8b554edf2b2f91dd478fe1e16a13b4607c4dab2bec77cd5b8. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:32:54Z), 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/ARQYU1301161.
Santiagueño Soy / Tardecitas de Mi Santiago
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de5fe128cf54c007ca653ed5a6f35b818e052028daade01033a44e606ea4abc. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T07:33:31Z), 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/ARQYU1301165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85dbf44e2a2d826162ed68cbdbffa1ef831c284ff46f0963705d7f1104cce615. 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/ARQYU1301167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b387abf4ab411f16e8318d4496fb5f09dc0b9f020d522ea94203571f4b220ed. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:06:49Z), 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/ARQYU1301168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479770dede0d207e4608bbe25d147859b4b15fb25c2484d956f1997b0406f464. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:48:53Z), 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/ARQYU1301175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777e51524dc45ea0b576b2d03fdc0f620ba6c2b8f4153fc696d499fc002f9c9a. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T03:47:09Z), 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/ARQYU1301594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88fcab0ac859c4c95d268e5f579a19799c9f967942fb0f3ea1ab501a5ee7329. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ARQYU1301574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3b65179f790cc57d553f593a309b0834fd260b4703ff6b5acbfb3b8a0dba3f. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:31:54Z), 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/ARQYU1301581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827ed5ecb137c5169d1844e27569eff79960d6f27b8a46f373533aeb4990040b. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:15:38Z), 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/ARQYU1301587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a55656f0c9981d763106c4f3add2f8911cfea2c798c93becfb85021b8efe640. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:54:57Z), 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/ARQYU1301623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c8849f2e6faeb452635f8f650c154c607c81a83d88f858f36b99895ea3afb0. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ARQYU1600077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88bc930a501beca5bcc404823abf0b9714cee51906f93ad5a76a72667de41499. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:26:29Z), 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/ARQYU1600078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626fca2ee76d62f0921cc409b980cc6bfde68c92038f993dad761954d9a92a91. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ARQYU1600079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd086f58cdb29b8ff623a75e9591bf41d87dbf3a87b84723a3b7ecb43fded1c39. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ARQYU1600871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d8c717763782cc5a9e5f40caa0b8437a12a1c24d2544e7f6afe3494de69710. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/ARQYU1600872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0f8eff08b129cd76f0da00c2c960fda8d714cbee5538120c91b7385c145871. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/ARQYU1600873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8be87b85e707e5d0645e247d2beb9c25b4ac73aa12949e5a55f88dd68187d58. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:50:26Z), 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/ARQYU1600874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661a334ec7527ff2537e519d441cf2461401f062bb2ee07f521acc85302d9595. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/ARQYU1600875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a9d65ccf770bd232296b42790ab7b8a897ae2bdfce38cae29fd8c3b6310696. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:09:04Z), 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/ARQYU1600876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0670a51a48d6c0c0d115eb35b1a21250be1acd15ca09f3eda1faf9ce8baf4edf. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ARQYU1600877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38259bb146ff0d9075fcbadc0918238c5926d80dd4b3217532f0d9fb031cd319. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/ARQYU1600878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57dd98e513f88078ee47b5faedd6b4e215bd1f86ac316a7676ba57182e540f9f. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/ARQYU1600880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc0e3f36e1b24641d22f29a89adce83c8bc3625ee072f034cd58666fcc91e62. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ARQYU1600882.