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 0x166d4f693397ded29c5683feeedb0d7971289232eadeadade68873a01c7693d1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd9d09ed-5d96-4c2e-b601-a0d5aa41946a.json and https://artists.proofprofile.net/proofs/artist/dd9d09ed-5d96-4c2e-b601-a0d5aa41946a.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 0xd03b9c0dd514d7d63c6870754642d9c32fd5caad859e372ce21bca638b07dbc0. 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/ES5010300603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f173c7331f9d3e8bdbe67ca43ca7a34b937acd0ee5d1a7488ce531dd5b2bf0. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:09:52Z), 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/ES5010300607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970e47a4dede838a87dcc7b455d164bbdc2fc79d18b2b5847c2e6f00d6b60e6f. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:00:50Z), 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/ES5010300608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96767bd0b4a939b17105a1e7d52dfaeb5d77812117b5877495d31ba8c4b1c434. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:33:03Z), 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/ES5010300609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f70144c91850afa7b211820a6bf654ed20e01229f41ada42cbc16ebcadd0e3. 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/ES5010300610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a03bbceb8c32f0ca7c99d318ea0b2e5a10576da6934c5be7e9836e66649f745. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ES5010300612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683e59da0e56055b263cf621d55e39d496477fa77b89befdaf5b2ab4961843b2. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ES5010300613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2fc1847617fc3d10eee40131e30baf85564feadfaaabfef7ea935b3cdd5a0c. 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/ES5010300611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8826eb39513bd8cb58c7387ac0424449f0f835c920f964bacf769cb0f4550da4. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:03:41Z), 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/ES5010300617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f2c8eabe88d40bfb8718adf9a3c667afdbc893c2d30d5850d39e447f071698. 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/ES5010600094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d262b276ac6b7eb9dc1409203262798d2424c6b5dafbacb54c06d4b57033561. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/ES5010600095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1552aa9a6d5014ad742fcef07493b5ecb32030abe8cd28fe2f66e94342bf776e. 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/ES5010600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915cc7ed865781aacf22780e019f524d2909e0efed3f4bbc9c48a3835f485eaf. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:51:37Z), 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/ES5010600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b831061c2d08c22aa65dcd815665fb131fcf612d707109b2706b5555e65c9c0. 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/ES5010600105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1296baaee83ea597de6317c1d1f0ddd18d7d9f262b90a2699d26dff95476e6. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/ES5010500700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dcbe51a050761c370b9181ebfbae584d7ca10497186a01bfb18a61aecf873b. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T19:00:32Z), 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/ES5150800176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593dfda4e330ddcd04d934550bab26e299e9eba091a5f34ef5708aaa7f3f91a2. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/ES5150800174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502f14d9ce9c96f39c085dc211b912d759a297b06a5aad20436fa7764b84ef41. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/ES5150800171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea9b50ea5a75a0afe4f98f02802ece9e78213b5e1902b05a82683dde1471d26. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:04:02Z), 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/ES5150800173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3e3eea3e522391da90418ef183293ea5704eb91f00995c1d1cc3bcb1620560. 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/ES79A1004201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82000066879a125cf930d3ae1e926f125be7ccb55102022b7a1913008eb6fb00. 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/ES79A1004208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec4585cb832987044caf42a9ec1c994b3bfe934a6aea558eda3abd28a14a197. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:13:49Z), 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/ES79A1004202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c67a28f589e473ae3401d9195b7f2e081b1c63a422d94cd271b67cf42c372e. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ES79A1004216.
El Cuento Del Que No Limpia El Fregadero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e1e6c69e1878bfab714c9f592e0f3eaf15c5b63518dfa85fffc570e7146685. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:57:45Z), 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/ES79A1004207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefb3582e57541b89961b40dccba7b4ebc5e9ae7dba4bf10837d687e00e15dac. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ES79A1004204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010459694b417ce1d6a8c3b4096ac9f686e1cc79139c130fc2f625e13e6cfc42. 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/ES8241221401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98ee40f3b66946c93823da4a9311aa4fb5a867c808e8e9a543c8d5683f68323. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:20:58Z), 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/ES8241221403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882343052b98495ce58dbb436957f6a783b582f7a1b3fc71d934d0db2b07bd55. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES8241221404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0259df1030cdaa89a314743c9633b8611eae790ac7d5706f87fd036a01375f6. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:20:04Z), 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/ES8241221405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07f3dac3352be5b8123cf660d284e680195bff14409306ecfeb27ce18db505f. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/ES8241221410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf903be8c33d9dbe91b94103c073f1b956d27e8db3f5c89f6e8bba977f211fadd. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:58:55Z), 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/ES71G2308619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099ae1246fe790ca0a12e8aa2f9d341bb5a88a489aa678b31e8719204c120e64. 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/ES71G2316290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01d3257451a51f97e65eb846597d6847b4acd75fa2a2ecc9e309c808305a292. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/ES71G2322377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112bf2040398a59e30ffc9df1368a1e9451f02098a1233c3badefd3943c09947. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ES71G2322378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024d130a955a5e04f4c3bfb102b6f21f51ac3db255e728e846b4b46deacb2e2a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ES71G2322379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e8c9b8de20a8acafbb270d271923cc16929e0c09c94cce5a7b0559f7d1362f. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:29:56Z), 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/ES71G2322381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308bc4f4729772c095a0f394840e357987f81bff8890645fb556435e36acdb5c. 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/ES71G2415270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8882b0a40fe8afae80ad60f2db4cbcb1eb5663deb3b14a4db90414eab482e96f. 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/ES71G2428770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013671ea548b92c952e164108e7fc027ccdbb2b3431e17206029e96d45f41a55. 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/ES71G2507869.
XX años ladrando. Albertucho y los perros andaluces
Gargantas Callejeras y Guitarras de Cartón
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25594a1464b2ad49a83d3eb743284b3cc4bf1060e8165c656acf022ef557ded7. 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/DEUE11793531.