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 0x4496e643159ad03ea874edcaecea12c96da4289deda72439e08a017b39341789. 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/36e6eef4-734e-42b1-8959-1ca9b49efa83.json and https://artists.proofprofile.net/proofs/artist/36e6eef4-734e-42b1-8959-1ca9b49efa83.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 0x20a226df7907b7079427fef58e96c24b4831f673be38ee610b4fafd7c9f0f7f9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USCGJ2037153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897de4f7d3e30e7e12e1cbc2054be4d15660a61d9c58f68a0c072a562ce23ff3. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USCGJ2037154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68f4b69985418d6e72045770752ec7d1e939aa5768c093e4c9b7ae2c1cac5cc. 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/USCGJ2037157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d2b7333d1f8051f124ed2a68c2547d725d2325ea5311822b2a4fcc6402cfb2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USCGJ2037159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8245e691c672ac5c24c54dbbfd4d60f7cb9d5b5a6ed31c23efec419c43a6ee0. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USCGJ2037161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4cc06b15734f4542ddf1fcdad13ff2e437439c8970fb06e4981c4d5f2dbf51b. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USHM91792656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4cb52f8065f3da36e51f02c0593884db7b7e85151dbb97044bb81288fa475c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM91792663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf74beff6d8e015ef52003d4ba1a3baf357b7fc7bc5432efd2a092b1f4bf6a52. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZES61872994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd906ab6d2d717f40e237ac5769bebcccf624bfc41b90069921aa11bdbf3b4a51. 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/QZES61872997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7672bab7b3253eead64f67a08418db0568c03b5288d7e6487696a6a507c2e3. 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/USL4R1914381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55ceec1e118b7348cc875cd586eeb58585e5cefaab8c0f8fcf90803f3deec82. 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/US3DF2052782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0a084e870294f8f28f6e9c57c71f46a90272e86337cc19ddc770c133472b34. 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/US3DF2052783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeaf62ff65140cd5ae6d1c4eab81e04023afad555d33fce58a9f2f1615454430. 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/US3DF2052784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd510b94f86ed20f578d8076c13c3f194d07b0596a58acd048180e58a74ea98c8. 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/US3DF2052785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c3275ef0a7f1344a91d417334205192ef5b2c4dfe64769a1dce918944fe0ba. 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/US3DF2052786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddf05d4e815e52d2a9179407ebf265cc1215e7d4f1abc88e84bf4d9d53677ff. 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/US3DF2052787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb696dc71d1656839372f4cbe922bd2d7e4bbc41ecd7f8ed14553e6202fd98eb. 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/US3DF2052788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0118087e46a8ac85b777785a65135a8536eca96c525c7f1ef499dc0fcc6a553. 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/US3DF2052789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1c52cbd8f1011f740f28a55467ed61c959ae6dc9c866a912f5327d56d9b8af. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US3DF2052790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dca779d5a1c6c667d3c4207fbbccf1cff2bff1fee9427cbc9dc329ea796c552. 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/US3DF2052791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef2ff1abd96406a8a5a54b9a025fc47507ad4863df329e6bbc2d22da1991781. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US3DF2052792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e8f9711089570e374f5f0a49c32a1452dcea393141e8dedd40b2b183ed400b. 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/US3DF2052793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ed23823a8b7ae0a2ad0b192daf48183f86ce8f7590e0e883d3d4687b7dc69f. 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/QM3DF2002222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c6927bb162092155ec9621a99040dca9ff3014b0d6c1a86503f9c6c201a335. 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/QM3DF2002226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b393afc9905bde1918baa8a7ac49188c9847eeb0092a5ecc19e2c8e54e6b740. Chain 2 (Bitcoin): anchored in block 957690 (2026-07-12T10:16:40Z), 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/QZPLR2001757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf94e2c64946b5d4f32870f794fe5b8fe8c36e66cd6cf2a57c167508b2404b6. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QM3DF2279711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a1793d7a2aad8de573daa1243052cf3224e80f80a05c537424daacbd4fee5d. 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/QM3DF2279713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7f154a67038807fce52825a10c770a0f114671027d2bd86633691f0a06ff27. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM3DF2279714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83ae61b23b0672de0ea7700f03eafc0c6f6d0cb20f3b89414fd242938ba6b88. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:56:20Z), 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/QM3DF2279717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22c9e10de14606f4404e58dba73408222ef4b3411004309f08f79d2ddff0221. 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/QM3DF2279721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0025cf707bb1499887a47161b22347e4e610e459615884b8917b9609f1c4f9fd. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/QMANG2255211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b2747bab1419f06e703cc85aa8bfb90ce7993a51b817928bab22e3d1142152. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:43:44Z), 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/QM3DF2410693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6ee414c06de20c4849649272667f41df4ee42d6537cc111eaa67e94d32d80d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/US3DF2519174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78a8d0d3d325dccf5732bba6ae975e4ee540d7096999c7afb0be36ff502da25. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/US3DF2527383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b55ebe5e57eb800ddb3196218014024f85583834236782bfa344a326f973e5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US3DF2538003.
Episode 4 - Arpas Colgadas ft. Pablo Lievano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44430a9dfd2fc24503d325eaf83f5e1d04264af7a620c5c9273f212b32ff414. 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/US3DF2556776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2438afe10121dc48b8282a4fd85895c74e9dc7db2c0c60994cae53f78e460118. 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/US3DF2568933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12026a62fc928c2ec158a90d845c4853eb3cd3fe7f88d8c0d1d48cb9c1650a8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/US3DF2579934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8498f1b6cbc55d3aa9303bcb580fac09ed7585af4c61ca38d480937213bcb2f2. 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/US3DF2589576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f2ae4f80e1c1f4477efd2a32179fca3ea3dda667a3c2836e0c85eb82444f56. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:01:18Z), 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/USANG2512529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7c042d29883ec553e659de44fe7d3e26c99c513ab19d7d1043083e37903f44. 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/QZNJY2399441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7c042d29883ec553e659de44fe7d3e26c99c513ab19d7d1043083e37903f44. 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/QZNJY2399441.