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 0x78f9576284382c3713ebeea9badc6988c5eba3ac5bbaaaf81b31b1d37eb52644. 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/35f714fd-6b08-4c8c-af22-4e1ef3dbc370.json and https://artists.proofprofile.net/proofs/artist/35f714fd-6b08-4c8c-af22-4e1ef3dbc370.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 0x80b850fb6bc2319dfa053c85bfc855b8937e582588171a93cc4ea9636083d75e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ARF039501447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b35e6e2e67441f36499a1094fc3edf89aa531dca604b005cfec17a954259fd. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/ARF039501449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1cbab05e537615a6c281b942bf8b2dbdfee74e13573cec1dd25c62366e93da. 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/ARF039501451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f849b236fa67709898cdc928d63900a4ab2469ef8ca766ac2b0a50cbc43f56. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ARF039501452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182d01e57f5cff2c57839533e505147859026beec5c87f8448288208c7a9a3a0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ARF039501454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ac36c8f481ff34b03ebfe397607568c9aec70b3385018724518f43e942378f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ARF039501455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01e68588dcf387a9fe2d5649c182ed86a313e85bbc2eb23359d5cd566f6ba5e. 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/ARF039600939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b09771131743039372a9a2c059e4a97bb2021bbf2fa8980f5aa1e32c637e36. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ARF039600940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1cb70a8b0ac0e1f48c4668c2415dd6db4f1ddc98dee1422557069cad54e9b5. 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/ARF039600941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75df05eef83f042c217fd3a49dc25e2836f6f2d732807f64db149ed287511c12. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:45:21Z), 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/ARF039600943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b4b869c23ea71ab5f05f30f2e8696053e7ff9d7a4976187c30f9de8265f323. 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/ARF039600947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76b0a7004701c17e52000016d3559de57117f518bdaf908938120fea49a7dca. 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/ARF039600951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a37aabce2391df9e06efa4abe2a28dc3ee166a76fd74a4e177d92d5e41e5c7. 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/ARF039600952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7b98bd55c7963aae97b06a73710d8b3d524d32fcb68c158e1a2332366afa6b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ARF039600953.
Usted Ya Juro Ante Dios / De Noche Sueño en Tus Brazos / Canto Mis Penas / Baila Mi Negra Linda / Para Bailar para Gozar (En Vivo)
Bailas Como Ninguna / Santiago Ya Estoy de Vuelta / Viva el Ritmo Tropical / Quiero Tus Labios de Miel / Voy Buscando Tú Querer (En Vivo)
Koli Arce y Su Quinteto Imperial En Vivo
El Borracho / La Niña de las Bailantas / Linda Muchachita Entre Tus Brazos Estoy / Sin Cariño y Sin Tu Amor / Sumido en la Soledad / En Mi Mente Viviras / Brindemos por la Paz (En Vivo)
Aquí la Tienes / Usted Ya Juro Ante Dios / Ay Lunita Santiagueña / Yolanda Tú Eres Mi Vida / Viva el Ritmo Tropical / Punto Final (En Vivo)
Koli Arce y su Quinteto Imperial - Discografia Completa Vol.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cdd94a28fc668bab352a1c0d54be4efd2fb0774379f65e2c02aeb987578df9. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/ARF038100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35cd421a24715f1add35fa7ffea9eba1bac8d5a770ddd3bbc52b4e0d1bccac73. 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/ARF038100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf4b09c9b60528e0164fcc4524273df97b30d0079855b1581a5e4f228c01519. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/ARF038100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949650b38136c1719692f8397b20c15d49aeba501688e6bda15e9f43cdb07b4e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:05:27Z), 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/ARF038100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c13a9d0d74bc8a02c409cf929c52f3cf444db14f3789514e549a24b988e5125. 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/ARF038100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86142d527e0951ba319b30e8c7d8d69a45aa1e85b29a5abe8e5cb870b558186. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ARF038100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7400d7a4e054d1ce6e217f74685e385b2f231e108e157ec2f92bff93071e5702. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/ARF038200111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fe605076112106b9bc90bad4cbdfb755b2acd3cf51a5ba2eddcb01b3a3f7f9. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/ARF038200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0168d0c866acb809cf446e81c3d8eb9229eb80bd298f4698cd5213aee41cc742. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ARF038300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb64abce6dca834630a0e07eb3848957c5ce17a2b1e2487010731a91f89a612. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ARF038300071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096390872550da3aea7cfb3fd874203004b3d5a239d2d5cbc4edd218b4e1390b. 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/ARF038300072.
20 Secretos de Amor - Koli Arce y su Quinteto Imperial
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f97c960ba56dad8710756d7a2e84956ff6a0562784dbc366d2b55d1e8cd7e0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ARF038500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb102e3bf4a18b6734c6117ef1599c275648e77aa5a51d44b1532d43bc89636f. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:59:39Z), 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/ARF038500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bb2d39348842e65a7e9efa34bb82ecaaffb5513c66f87afd13f551ea2b05d8. 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/ARF039801865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cffd2771a53104925c537f52ac90992b72b892a912bfc921eb0fb3d4113c449. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/ARF039100112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85024391dde4dfd2628fd3907e9d28d41f852aef5bebf84d23792fd8d6e3149b. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:41:49Z), 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/ARF038800122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb02beee8218773d96b3c413d6af7b439c0d6dd115bb286ad9ea923305598d2. 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/ARF039100116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55d5fa00803350271cd48717969bafb546176983021ac7fbf33e7b33ec10fe1. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:07:38Z), 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/ARF039000127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4299c2952c31dd0b26c399a971ef341fae02f572e0ae9042c5ec3a77fa5c13. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:06:08Z), 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/ARF038300124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9661d25530831ddcc395f4eec7c06a08a7ad4a92d30337284b1a7a583ece268f. 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/ARF038300129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30fc463b52b69319b04b3f70dc3c109d58542f5974d970986cf00d1474acaad5. 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/ARF038300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f397a14975373f91e6b979576e05a4c2b7252e6d70baec1a5073c2fbb8f03d1. 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/ARF038400143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf074a7cde4d4aba908e234273be8c4fe8dd29ebc84b732c9a77ebfe877c75064. 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/ARF038400147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc688d4d89f6764ff9a0766f10009187a03f8de69c094f9703129c140efca9f24. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ARF038400149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8cb559c32f8703fad1c5e8187bb3c8fe65ecb9ff3530590aae99ef82bbac887. 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/ARF038400152.